Abstract:
A medical imaging apparatus provided with a position recognition member, capable of achieving a precise position recognition without an additional calibration process and preventing the position recognition errors on account of a long term use of components includes an X-ray generating portion configured to generate X-rays and transmit the X-rays, an X-ray detecting portion configured to detect the X-rays transmitted from the X-ray generating portion, a moving portion provided on at least one of the X-ray generating portion and the X-ray detecting portion to move the at least one of the X-ray generating portion and the X-ray detecting portion, and a position recognition member comprising a bar code portion configured to recognize a position of the at least one of the X-ray generating portion and the X-ray detecting portion, which move along the moving portion, and a bar code reader portion to recognize the bar code portion.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims the priority benefit of Korean Patent Application No. 10-2011-0123509, filed on Nov. 24, 2011 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference. 
       BACKGROUND 
       [0002]    1. Field 
         [0003]    One or more embodiments relate to a medical imaging apparatus, and more particularly, to a medical imaging apparatus provided with a position recognition member. 
         [0004]    2. Description of the Related Art 
         [0005]    In general, a medical imaging apparatus is designed to obtain an internal image of a human body by use of electromagnetic radiation in the form of X-ray. The medical imaging apparatus obtains an internal image of a human body by projecting X-ray toward a desired region of the human body, such as the head or the breast, and by detecting the X-ray passing through the desired region. 
         [0006]    The medical imaging apparatus is classified into a plain X-ray imaging apparatus that transmits X-rays in one direction, and a Computed Tomography (CT) imaging apparatus that reconstructs a computed image by transmitting X-rays in a plurality of directions. The CT imaging apparatus may be referred to as a computed tomography apparatus or a computerization tomography apparatus. 
         [0007]    The medical imaging apparatus includes an X-ray tube to project X-ray to a region of the human body, a high voltage generator to generate a high voltage that is required for generating the X-ray, and a moving apparatus to move a projecting position and a projecting direction of the X-ray. In addition, the medical imaging apparatus is provided with a manipulating apparatus configured for an operator to manipulate the control of the apparatuses of the medical imaging apparatus. 
         [0008]    The medical imaging apparatus receives X-rays, obtains a medical image and transmits the obtained medical image to a server or a communication device. The medical imaging apparatus receives projected X-rays, changes the received X-rays to digital signals and transmits digital data to a personal computer. The medical imaging apparatus includes an X-ray detecting portion to detect X-rays. The X-ray detecting portion may be installed on a stand that is configured to obtain an X-ray image while having a patient in a standing position, or a patient table that is configured to obtain an X-ray image while having a patient in a laid position. The X-ray receiving portion may be provided in a fixed state, or in recent years, in a detachable manner provided for the use of both of the stand or the patient table. 
         [0009]    In recent years, the medical apparatus is provided in the shape of U-arm having an X-ray detecting portion and an X-ray generating portion incorporated into a unitary apparatus. The medical imaging apparatus as such offers easy manipulation without having spatial limitation. 
         [0010]    The medical imaging apparatus requires an apparatus that is configured to recognize the position of the X-ray detecting portion or the X-ray generating portion to control the movement of the X-ray detecting portion or the X-ray generating portion. In order to the recognize the position of the X-ray detecting portion or the X-ray generating portion, a relative coordinate system is used in a manner to detect a moving distance from a reference point such that the current position is detected. In the case where the relative coordinate system is used, POT or an absolute encoder is used to detect the moving distance. 
         [0011]    However, when the POT or the absolute encoder is used for a long period of time, the accuracy of encoding coordinates may be lowered due to the deterioration of the components. In addition, for the relative coordinate system, a calibration process is needed to set a reference point. If the calibration is not accurate, the whole coordinate system may have errors. 
       SUMMARY 
       [0012]    The foregoing described problems may be overcome and/or other aspects may be achieved by one or more embodiments of a medical imaging apparatus having a position recognition member. 
         [0013]    Additional aspects and/or advantages of one or more embodiments will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of one or more embodiments of disclosure. One or more embodiments are inclusive of such additional aspects. 
         [0014]    In accordance with one or more embodiments, a medical imaging apparatus may include an X-ray generating portion, an X-ray detecting portion, a moving portion, and a position recognition member. The X-ray generating portion may generate X-rays and transmit the X-rays. The X-ray detecting portion may detect the X-rays transmitted from the X-ray generating portion. The moving portion may be provided on at least one of the X-ray generating portion and the X-ray detecting portion to move the at least one of the X-ray generating portion and the X-ray detecting portion. The position recognition member may include a bar code portion configured to recognize a position of the at least one of the X-ray generating portion and the X-ray detecting portion, which may move along the moving portion, and a bar code reader portion to recognize the bar code portion. 
         [0015]    The bar code portion and the bar code reader portion may be provided to face each other. 
         [0016]    The bar code reader portion may be formed on a protrusion that protrudes from at least one portion of the medical imaging apparatus, the at least one portion facing the bar code portion. 
         [0017]    The bar code reader portion may be formed at an inside of at least one portion of the medical imaging apparatus, the at least one portion facing the bar code portion. 
         [0018]    The medical imaging apparatus, which may accommodate the bar code reader portion, may include transparent material that allows light, which is transmitted from the bar code reader portion, to pass therethrough. 
         [0019]    The X-ray generating portion may include a direction adjusting portion configured to adjust a direction in which the X-ray is transmitted toward an object. The direction adjusting portion may include a guide rail and a moving carriage that is disposed at a lower side of the guide rail to move along the guide rail. 
         [0020]    The moving portion may be provided on the guide rail. 
         [0021]    The guide rail may include a first guide rail and a second guide rail, the bar code portion may be positioned on at least one of the first guide rail and the second guide rail, and the bar code reader portion to recognize the bar code portion may be provided at an upper side of the moving carriage, which may face the at least one of the first guide rail and the second guide rail. 
         [0022]    The guide rail may include a first guide rail and a second guide rail that are disposed while being in perpendicular to each other. 
         [0023]    The medical imaging apparatus may further include a driving apparatus configured to support one of the first guide rail and the second guide rail against a remaining one of the first guide rail and the second guide rail while driving the remaining one of the first guide rail and the second guide rail with respect to the one of the first guide rail and the second guide rail. Each of the first guide rail and the second guide rail may be provided in one pair, a first bar code portion may be provided at one side of the first guide rail and a first bar code reader portion to recognize the first bar code portion may be provided at one side of the moving carriage. 
         [0024]    A second bar code portion may be provided at one side of the second guide rail and a second bar code reader portion to recognize the second bar code portion may be provided at another side of the moving carriage. 
         [0025]    The medical imaging apparatus may further include a table configured to have the object disposed thereon, the table including a table top on which the object is disposed and a support to support the table top. The X-ray detecting portion may be provided at a lower side of the table top. 
         [0026]    The moving portion may be disposed at the lower side of the table top to move the X-ray detecting portion. 
         [0027]    The bar code portion may be provided at an edge of the table and the bar code reader portion may be provided at one side of the X-ray detecting portion. 
         [0028]    The bar code portion may have a width of about 0.1 to 1 mm. 
         [0029]    In accordance with one or more embodiments, a medical imaging apparatus may include an X-ray generating portion, a stand, a moving portion and a position recognition member. The X-ray generating portion may be configured to generate X-rays and transmit the X-rays. The stand may include an X-ray detecting portion to detect the X-ray transmitted from the X-ray generating portion and a body portion while having the X-ray detecting portion movably coupled to the body portion. The moving portion may be provided on at least one of the X-ray generating portion and the X-ray detecting portion to move the at least one of the X-ray generating portion and the X-ray detecting portion. The position recognition member may include a bar code portion configured to recognize a position of the at least one of the X-ray generating portion and the X-ray detecting portion, which move along the moving portion, and a bar code reader portion to recognize the bar code portion. 
         [0030]    The moving portion may be mounted on the body portion to move the X-ray detecting portion upward and downward, the bar code portion may be provided on one surface of the body portion facing the X-ray detecting portion, and the bar code reader portion may be provided at a rear surface of the X-ray detecting portion. 
         [0031]    In accordance with one or more embodiments, a medical imaging apparatus may include an X-ray generating portion, an X-ray detecting portion, an arm portion, a moving portion, and a position recognition member. The X-ray generating portion may be configured to generate X-rays and transmit the X-rays. The X-ray detecting portion may be configured to detect the X-rays transmitted from the X-ray generating portion. The arm portion may enable the X-ray detecting portion and the X-ray generating portion to be installed in one apparatus. The moving portion may be provided on at least one of the X-ray generating portion and the X-ray detecting portion to move the at least one of the X-ray generating portion and the X-ray detecting portion. The position recognition member may include a bar code portion configured to recognize a position of the at least one of the X-ray generating portion and the X-ray detecting portion, which move along the moving portion, and a bar code reader portion to recognize the bar code portion. 
         [0032]    The medical imaging apparatus may further include a body portion configured to support the arm portion, which connects the X-ray detecting portion to the X-ray generating portion. 
         [0033]    The arm portion may include a first arm portion coupled to the body portion, and a second arm portion extending from the first arm portion to the X-ray detecting portion. 
         [0034]    The bar code portion may be provided at one side of the body portion facing the second arm portion, and the bar code reader portion may be provided at one side of the second arm portion facing the body portion. 
         [0035]    The bar code portion may be provided at one surface of the first arm portion to which the X-ray generating portion is coupled, and the bar code reader portion may be provided at a rear side of the X-ray generating portion. 
         [0036]    In accordance with one or more embodiments, a medical imaging apparatus may include a gantry, a table and a moving portion. The gantry may be provided at a center thereof with a round tunnel to accommodate an object while being configured to rotate around the object. The gantry may include an X-ray generating portion, an X-ray detecting portion, and a position recognition member. The X-ray generating portion may generate X-rays at an inner side of the gantry and transmit the X-rays. The X-ray detecting portion may detect the X-rays received from the -ray generating portion. The position recognition member may include a first bar code portion to recognize coordinates of the X-ray generating portion and a first bar code reader portion to recognize the first bar code portion. The table may have the object disposed thereon, and include a transport portion to transport the object to an inside of the gantry and a support portion to support the table. The moving portion may be provided on at least one of the table and the inner side of the gantry. 
         [0037]    The first bar code portion may surround the inner side of the gantry in a circle. 
         [0038]    The first bar code reader portion may be provided at a rear side of the X-ray detecting portion that faces an inner wall of the gantry. 
         [0039]    The first bar code reader portion may be provided at a rear side of the X-ray generating portion that faces an inner wall of the gantry. 
         [0040]    The table may include a second bar code portion provided at one side of the transport portion to recognize a position of the object, and a second bar code reader portion provided at the support portion to recognize the second bar code portion. 
         [0041]    As described above, the accuracy in the position recognition may be improved without an additional calibration. In addition, the position recognition may be achieved based on optical characteristics, thereby possibly preventing position recognition errors due to a long term use of components. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0042]    These and/or other aspects of the disclosure will become apparent and more readily appreciated from the following description of embodiments, taken in conjunction with the accompanying drawings of which: 
           [0043]      FIG. 1  is a perspective view illustrating a position recognition member in accordance with one or more embodiments. 
           [0044]      FIG. 2  is an enlarged view illustrating a barcode portion in accordance with one or more embodiments. 
           [0045]      FIG. 3  is a view illustrating a medical imaging apparatus in accordance with one or more embodiments. 
           [0046]      FIG. 4  is an enlarged view illustrating an X-ray generating portion in accordance with one or more embodiments. 
           [0047]      FIG. 5  is a view illustrating a table in accordance with one or more embodiments. 
           [0048]      FIG. 6  is a view illustrating a stand in accordance with one or more embodiments. 
           [0049]      FIG. 7  is a view illustrating a medical imaging apparatus in accordance with one or more embodiments. 
           [0050]      FIG. 8  is a view illustrating a medical imaging apparatus in accordance with one or more embodiments. 
           [0051]      FIG. 9  is a view illustrating the interior of a medical imaging apparatus in accordance with one or more embodiments. 
       
    
    
     DETAILED DESCRIPTION 
       [0052]    Reference will now be made in detail to one or more embodiments, illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. In this regard, embodiments of the present invention may be embodied in many different forms and should not be construed as being limited to embodiments set forth herein, as various changes, modifications, and equivalents of the systems, apparatuses and/or methods described herein will be understood to be included in the invention by those of ordinary skill in the art after embodiments discussed herein are understood. Accordingly, embodiments are merely described below, by referring to the figures, to explain aspects of the present invention. 
         [0053]      FIG. 1  is a perspective view illustrating a position recognition member in accordance with one or more embodiments.  FIG. 2  is an enlarged view illustrating a bar code portion in accordance with one or more embodiments. 
         [0054]    A medical imaging apparatus may include a position recognition member  1  shown in  FIGS. 1 and 2 . The position recognition member  1  may be provided on at least one of an electromagnetic radiation generating portion and an electromagnetic radiation detecting portion. In one or more example embodiments, the electromagnetic radiation may be X-rays. The position recognition member  1  may include a bar code portion  2  to recognize the position of at least one of the X-ray generating portion and the X-ray detecting portion, and a bar code reader portion  3  to recognize the bar code portion  2 . 
         [0055]    The bar code portion may be positioned on at least one of the X-ray generating portion and the X-ray detecting portion. The medical imaging apparatus may include a moving portion provided on at least one of the X-ray generating portion and the X-ray detecting portion to move at least one of the X-ray generating portion and the X-ray detecting portion. The moving portion may include a configuration to move the X-ray generating portion or the X-ray detecting portion. For example, the moving portion may be implemented using a rail. The bar code  2  may be provided to recognize the position of at least one of the X-ray generating portion and the X-ray detecting portion that move along the moving portion. 
         [0056]    The bar code reader portion  3  may be provided therein with an optical sensor to recognize the position of at least one of the X-ray generating portion and the X-ray detecting portion by recognizing the bar code portion  2  through the optical sensor. The bar code portion  2  may be disposed to be facing the bar code reader portion  3 . 
         [0057]    As shown in  FIG. 2 , the bar code portion  2  may be provided in the form of a combination of different widths of bars including numerical information enabling to recognize the position of at least one of the X-ray generating portion and the X-ray detecting portion. The bar code reader  3  including the optical sensor corresponding to the bar code portion  2  may recognize the position of at least one of the X-ray generating portion and the X-ray detecting portion by transmitting light and reading an electronic signal that is generated according to the strength and weakness of reflected light. 
         [0058]    The bar code portion  2  may be provided to allow the position of the moving portion, which may be provided on the X-ray generating portion or the X-ray detecting portion, to be recognized. Accordingly, the bar code portion may be provided on the moving portion, or on a portion facing the moving portion. Although the bar code portion  2  may have a width of about 0.1 to 1 mm that enables the bar code reader portion  3  to recognize the bar code portion  2 , the width of the bar code portion  2  is not limited thereto. In addition, the bar code portion  2  may be formed through a printing scheme, but not limited thereto. 
         [0059]    In order to the bar code reader portion  3  to recognize the bar code portion  2 , the bar code reader portion  3  may be positioned on a protrusion  4  that may protrude on at least one portion of the medical imaging apparatus. However, the position of the bar code reader portion  3  is not limited thereto, and the bar code reader portion  3  may be positioned at an inner side of the medical imaging apparatus. In the case where the bar code reader portion  3  is positioned at an inner side of the medical imaging apparatus, an outer side of the medical imaging apparatus may be made of transparent material that allows light, which may be transmitted from the bar code reader portion  3 , to pass therethrough 
         [0060]      FIG. 3  is a view illustrating a medical imaging apparatus in accordance with one or more embodiments.  FIG. 4  is an enlarged view illustrating an X-ray generating portion in accordance with one or more embodiments.  FIG. 5  is a view illustrating a table in accordance with one or more embodiments.  FIG. 6  is a view illustrating a stand in accordance with one or more embodiments. The medical imaging apparatus may be applied to various types of medical imaging apparatus, but the following description will be made in relation to a medical imaging apparatus having a guide rail installed at a ceiling of an examination room. 
         [0061]    Referring to  FIGS. 3 and 6 , a medical imaging apparatus  100  may include an X-ray generating portion  10 , a table  50  on which an object is disposed, and a stand  70 . The X-ray generating portion  10  may include an imaging portion  29  and a direction adjusting portion. 
         [0062]    The X-ray generating portion  10  may include a direction adjusting portion to transmit X-rays toward the object. The direction adjusting portion may include a guide rail  20  and a moving carriage  23  that is disposed at a lower side of the guide rail  20  to move along the guide rail  20 . In addition, the X-ray generating portion  10  may include a post frame  24  and driving apparatuses  25  and  26 . 
         [0063]    The guide rail  20  may include a first guide rail  21  and a second guide rail  22 . The first guide rail  21  and the second guide rail  22  may extend while being perpendicular to each other. 
         [0064]    The first guide rail  21  may be installed, for example, on a ceiling of an examination room in which the medical imaging apparatus  100  is disposed. The second guide rail  22  may be disposed at a lower side of the first guide rail  21  while being installed in a slidable manner on the first guide rail  21 . The first guide rail  21  may be provided with a roller (not shown) installed thereto that may be movable along the first guide rail  21 . The second guide rail  22  may move along the first guide rail  21  while being connected to the roller. 
         [0065]    The direction to which the first guide rail  21  extends is designated as a first direction D 1 , and the direction to which the second guide rail  22  extends is designated as a second direction D 2 . Accordingly, the first direction D 1  and the second direction D 2  may be parallel to the examination room while being in perpendicular to each other. 
         [0066]    Although the moving carriage  23  according to one or more embodiments may be disposed at a lower side of the second guide rail  22  so as to move along the second guide rail  22 , the disposition of the moving carriage  23  is not limited thereto. The moving carriage  23  may be provided at a lower side of one of the first guide rail  21  and the second guide rail  22 , the one disposed at a lower side of the remaining. The moving carriage  23  may be provided with a roller (not shown) that moves along the second guide rail  22 . Accordingly, the moving carriage  23  may be movable together with the second guide rail  22  in the first direction D 1 , and may be movable along the second guide rail  22  in the second direction D 2 . 
         [0067]    The post frame  24  may be disposed at a lower side of the moving carriage  23  while being fixed to the moving carriage  23 . The post frame  24  may be provided with a plurality of posts. The plurality of posts may be connected in a foldable manner to each other so that the post frame  24  may be increased or decreased lengthways in the upward/downward direction of the examination room while being fixed to the moving carriage  23 . The direction in which the post frame  24  may be increased or decreased lengthways is designated as a third direction D 3 . Accordingly, the third direction D 3  may be perpendicular to the first direction D 1  and the second direction D 2 . 
         [0068]    The imaging portion  29  may be configured to project X-rays toward an object. The imaging portion  29  may represent an X-ray tube that is typically provided in a general medical imaging apparatus. The X-ray tube may be provided with an X-ray generating source  27  to generated X-rays, and a collimator  28  to guide the generated X-ray toward the object. 
         [0069]    A rotating joint  30  may be disposed between the imaging portion  29  and the post frame  24 . The rotating joint  30  may be configured to couple the imaging portion  29  to the post frame  24  and to support a load acting on the imaging portion  29 . 
         [0070]    The rotating joint  30  may be provided with a first rotating joint  31  connected to a lower end of the post frame  24 , and with a second rotating joint  32  connected to the imaging portion  29 . The first rotating joint  31  may be provided so as to rotate around a central shaft of the post frame  24  that may extend in the upward/downward direction of the examination room. Accordingly, the first rotating joint  31  may be rotatable on a plane which is provided in perpendicular to the third direction D 3 . In this case, the direction in which the first rotating joint  31  may be rotated is designated as a fourth direction D 4 . The fourth direction D 4  may correspond to a rotation direction of a shaft which may be provided in parallel to the third direction D 3 . 
         [0071]    The second rotating joint  32  may be provided to rotate on a plane which is perpendicular to the ceiling of the examination room. Accordingly, the second rotating joint  32  may rotate in a rotation direction of a shaft which may be provided in parallel to the first direction D 1  or the second direction D 2 . In this case, the direction in which the second rotating joint  32  may be rotated is designated as a fifth direction D 5 . The fifth direction D 5  may correspond to a rotation direction of a shaft which may extend in the first direction D 1  or the second direction D 2 . 
         [0072]    The imaging portion  29  may be rotated in the fourth direction D 4  and the fifth direction D 5  while being connected to the rotating joint  30 . In addition, the imaging portion  29  may linearly move in the first direction D 1 , the second direction D 2  and the third direction D 3  while being connected to the post frame  24  through the rotating joint  30 . 
         [0073]    In order to move the imaging portion  29  in the first to fifth directions D 1  to D 5 , the driving apparatuses  25  and  26  may be provided. The driving apparatus may be a motor that is operated on electricity. 
         [0074]    The driving apparatuses  25  and  26  may be disposed at various locations depending on convenience of design. For example, the first driving apparatus  26  to move the second guide rail  22  in first direction D 1  may be disposed around the first guide rail  21 , and the second driving apparatus  25  to move the moving carriage  23  in the second direction D 2  may be disposed around the second guide rail  22 . In addition, additional driving apparatuses may be provided to change the length of the post frame  24  and rotate the X-ray generating portion. 
         [0075]    Each of the driving apparatuses  25  and  26  may be connected to a power transmission member (not shown) to allow the imaging portion  29  to rotate or linearly move in the first to fifth directions D 1  to D 5 . The power transmission member may include a belt, a pulley, a chain, a sprocket, and/or a shaft. 
         [0076]    Referring to  FIG. 4 , the X-ray generating portion  10  may be provided with position recognition members  40  and  46 . A moving portion may be provided on the guide rail  20 . The X-ray generating portion  10  may move along with the moving portion. 
         [0077]    Bar code portions  41  and  44  may be positioned on at least one of the first guide rail  21  and the second guide rail  22 . The first guide rail  21  and the second guide rail  22  may be provided in a pair to enable a smooth movement and to support the X-ray generating portion  10 . The bar code portions  41  and  44  may be attached to at least one of the first guide rail  21  and the second guide rail  22 , for example. 
         [0078]    A bar code portion may be attached to a lower side of the first guide rail  21 , and may be referred to as a first bar code portion  41 . In order to recognize the first barcode portion  41 , a bar code reader portion may be disposed at an upper side of the moving carriage  23 , and may be referred to as a first bar code reader portion  42 . The first bar code reader portion  42  may be provided on a first protrusion  43  that protrudes from the moving carriage  23  to an outer side of the moving carriage  23  to recognize the first bar code portion  41 . The first bar code portion  41  and the first bar code reader portion  42  may be referred to as a first position recognition member  40  in cooperation with each other to recognize the position of the X-ray generating portion  10 . The first position recognition member  40  may recognize coordinates when the X-ray generating portion  10  moves in the first direction D 1 . 
         [0079]    The bar code portion may be attached to a lower side of the second guide rail  22 , and may be referred to as a second bar code portion  44 . In order to recognize the second bar code portion  44 , a bar code reader portion may be disposed at an upper side of the moving carriage  23 , and may be referred to as a second bar code reader portion  45 . The second bar code reader portion  45  may be provided on a second protrusion (not shown) that protrudes toward the ceiling from the moving carriage  23  to recognize the second bar code portion  44 . The second bar code portion  44  and the second bar code reader portion  45  may be referred to as a second position recognition member  46  in cooperation with each other to recognize the position of the X-ray generating portion  10 . The second position recognition member  46  may recognize coordinates when the X-ray generating portion  10  moves in the second direction D 2 . 
         [0080]    Referring to  FIG. 5 , a position recognition member  60  may be provided on the table  50 . The table  50  may include a table top  51  on which an object may be disposed, and a frame portion  52  to support the table top  51 . A support portion  56  to support the table top  51  against the floor may be provided at a lower side of the table top  51 . 
         [0081]    The support portion  56  may be provided with a plurality of supports  53  and  54  installed thereon in a foldable manner to adjust the height of the table  50 . In addition, the support portion  56  may include a bottom surface  55  to support the plurality of supports  54  and  54  while making contact with the floor. In addition, the support  56  may include a configuration to drive the table  50 . However, the shape of the support  56  is not limited thereto, and the support may be provided in other shapes capable of supporting the table top  51  against the floor. 
         [0082]    Since the table top  51  has an X-ray detecting portion  57  disposed at a lower side thereof, the table top  51  may be formed using material having a low absorption rate of X-ray such that transmission of X-ray may be maximized while minimizing the absorption of X-ray. In general, the table top  57  is formed using wood, acryl, and/or carbon, for example. 
         [0083]    A patient handle portion is a portion by which an object grips during the examination. The patient handle portion may be detachably installed on the frame portion  52 . 
         [0084]    The position recognition member  60  may be provided at a lower side of the table top  51 . The X-ray detecting portion  57  may be movable in upside/downside and left/right directions at a lower side of the table top  51 . Accordingly, the moving portion may be provided at a lower side of the table top  51  to move the X-ray detecting portion  57 . A bar code  61  may be disposed at a lower side of the frame portion  52  of the table  50 . A bar code reader portion  62  may be disposed at the moving portion facing the bar code portion  61 . The bar code reader portion  62  may be provided at a protrusion that protrudes from the X-ray detecting portion  57 , but the disposition of the bar code reader portion  62  is not limited thereto. The bar code reader portion  62  may be provided at an upper side of the X-ray detecting portion  57  according to the disposition of the barcode portion  61  to recognize the barcode portion  61 . In the case where the bar code reader portion  62  is provided at the upper side of the X-ray detecting portion  57 , the upper side of the X-ray detecting portion  57  may be formed using transparent material allowing light to pass therethrough. 
         [0085]    By use of the position recognition member  60 , the movement of the X-ray detecting portion  57  may be detected as the bar code reader portion  62  scans the bar code portion  61 , and thus the precise coordinates of the X-ray detecting portion  57  may be obtained. 
         [0086]    Referring to  FIG. 6 , a position recognition member  80  may be provided on a stand  70 . The stand  70  may include an X-ray detecting portion  72  and a body portion  71 . In order for the X-ray detecting portion  72  to be coupled to the body portion  71  so as to enable an upward and downward motion, a moving portion  74  may be provided on the body portion  71  to move the X-ray detecting portion  72 . A support portion  73  may be positioned at a lower side of the body portion  71  of the stand  70  to support the body portion  71 . 
         [0087]    The X-ray detecting portion  72  may be movable in an automatic manner and a manual manner. The X-ray detecting portion  72  may include a motor (not shown) and a driving apparatus (not shown) to move the X-ray detecting portion  72 . 
         [0088]    The position recognition member  80  may be configured to recognize the position of the X-ray detecting portion  72 . A bar code portion  81  may be provided at a portion of the body portion  71  that faces the X-ray detecting portion. A bar code reader portion  82  may be provided at a rear surface of the X-ray detecting portion  72  to recognize the bar code portion  81 . Accordingly, as the X-ray detecting portion  72  moves upward and downward, the bar code reader portion  82  may scan the bar code portion  81  to recognize the position of the X-ray detecting portion  72 . 
         [0089]    The X-ray detecting portion  72  may be provided at the rear surface thereof with a protrusion  83  that is provided to have the bar code reader portion disposed thereon. However, the bar code reader portion  82  may be provided inside the rear portion of the X-ray detecting portion  72 . In the case where the bar code reader portion  82  is provided inside the rear portion of the X-ray detecting portion  72 , the X-ray detecting portion  72  may be formed using transparent material. 
         [0090]      FIG. 7  is a view illustrating a medical imaging apparatus in accordance with one or more embodiments. A medical imaging apparatus  200  illustrated in  FIG. 7  may be provided in a U-arm type that is able to obtain an image by use of a single X-ray detecting portion  230 . The U-type medical imaging apparatus may have a superior spatial efficiency by having an X-ray generating portion  220  and the X-ray detecting portion  230  incorporated in a single apparatus. 
         [0091]    The U-type medical imaging apparatus  200  may include a body portion  210  vertically disposed while being fixed to the ground surface, an X-ray generating portion  220  to generate and transmit X-rays, an X-ray detecting portion  230  to detect the X-rays transmitted from the X-ray generating portion  220 , and an arm portion  240  to connect the X-ray detecting portion  230  to the X-ray generating portion  220 . 
         [0092]    The body portion  210  may be provided with a motor that has the arm portion  240  coupled thereto to enable a vertical movement and rotation of the arm portion  240 . 
         [0093]    The X-ray detecting portion  230  may be disposed at one side of the arm portion  240 , and the X-ray generating portion  220  may be disposed at the other side of the arm portion  240 . The arm portion  240  may include a first arm portion  241  coupled to the body portion  210 , and a second arm portion  242  extending to the X-ray detecting portion  230  from the first arm portion  241 . The first arm portion  241  and the second arm portion  242  may be rotatably provided to adapt to a region of the object that is to be photographed. The arm portion  240  may be provided with a motor to vertically move the X-ray generating portion  220  and a motor to rotate the X-ray detecting portion  230 . 
         [0094]    The arm portion  240  may be vertically movable along the body portion  210 . A first moving portion configured to move the arm portion  240  may be provided at the body portion  210 . The first moving portion may include a rail  252  and a lifting member  251  coupled to the rail  252 . 
         [0095]    The X-ray generating portion  220  may be installed so as to move lengthways along the second arm portion. A second moving portion (not shown) may be formed at the second arm portion  242  to which the X-ray generating portion  220  is coupled. The X-ray generating portion  220  may be movable to adapt to the region of the object that is to be photographed. 
         [0096]    A position recognition member may be provided on at least one of the first moving portion and the second moving portion. A first position recognition member  260  and a second position recognition member  270  may be provided at the first moving portion and the second moving portion, respectively. 
         [0097]    The first position recognition member  260  may be provided at one side of the body portion  210  and at one side of the second arm portion  242 . A first bar code portion  261  may be vertically provided at the one side of the body portion  210 , and a first bar code reader portion  262  to recognize the first bar code portion  261  may be provided at the one side of the second arm portion  242  facing the body portion  210 . Accordingly, as the arm portion  240  vertically moves along the first moving portion of the body portion  21 , the first bar code reader portion  262  provided at the second arm portion  242  may scan the first bar code  261  provided at the body portion  210  to possibly recognize the position of the arm portion  240 . 
         [0098]    The second position recognition member  270  may include a second bar code portion  272  provided at a side of the first arm portion  251 , to which the X-ray generating portion  220  is coupled, and a second bar code reader portion  272  provided at a rear side of the X-ray generating portion  220  facing the first arm portion  241 . As the X-ray generating portion  220  moves lengthways along the first arm portion  241 , the second bar code portion  271  of the first arm portion  241  may be recognized by the second bar code reader portion  272  disposed at the rear side of the X-ray generating portion  220 , so that the position of the X-ray generating portion  220  may be recognized. 
         [0099]    The first recognition member  260  and the second recognition member  270  may include a protrusion  263  and a protrusion  273 , respectively, such that the bar code reader portions  262  and  272  recognize the bar code portions  261  and  272 , respectively. 
         [0100]    The first bar code reader portion  262  may be positioned inside the second arm portion  242 . In this case, one side of the second arm portion  24  transmitting light of the first bar code reader portion  262  may be formed using transparent material. The second barcode reader portion  272  may be positioned inside the rear portion of the X-ray generating portion  220 . In this case, the rear portion of the X-ray generating portion  220  may be formed using transparent material. 
         [0101]      FIG. 8  is a view illustrating a medical imaging apparatus in accordance with one or more embodiments. 
         [0102]    Referring to  FIGS. 8 and 9 , the medical imaging apparatus implemented as a Computed Tomography imaging apparatus  300 , according to one or more embodiments. The CT imaging apparatus  300  is designed to transmit X-rays in a plurality of directions and reconstruct an image through a computer. The CT imaging apparatus  300  may include a gantry  310  provided with an X-ray generating portion  318  and an X-ray detecting portion  315 , and a table  320  to accommodate and transport an object  330 . 
         [0103]    The gantry  310  may be provided at a center thereof with a cylindrical tunnel  311  into which the object  330  may be inserted. The X-ray generating portion  318  and the X-ray detecting portion  315  may be provided inside the gantry  310  while being disposed opposite each other. In addition, each of the X-ray generating portion  318  and the X-ray detecting portion  315  may be disposed in a predetermined position where X-rays are introduced to the object  330  inserted into the tunnel  311  of the gantry  310  and the X-rays may be detected. 
         [0104]    The gantry  310  is rotated by a gantry driving member (not shown) on the object  330  while surrounding the tunnel  311 . The gantry driving member may control the rotation speed of the gantry  310  at a constant speed, and may horizontally drive the gantry  310  back and forth. 
         [0105]    A collimator  313  may be provided at a front side of the transmission direction of X-rays of the X-ray generating portion  318 . The collimator  313  may allow X-rays to be transmitted in a fan shape toward the object  330  without being scattered in different directions. The collimator  313  as such may be disposed at a front side of the X-ray detecting portion  315 . The collimator  313  may detect X-rays only at a region of interest. 
         [0106]    An X-ray filtering portion  314  may be disposed at a front side of the collimator  313 . The X-ray filtering portion  314  may filter X-rays in a predetermined range of energy band. 
         [0107]    The table  320  may be provided with a transport portion  322  to transport the object  330  to the inside the gantry  310 . A support portion  321  may be provided at a lower side of the table  320  to support the table  320 . The support portion  322  may be disposed at an upper side of the table  320 . The transport portion  322  may horizontally drive the tunnel  311  of the gantry  310  back and forth such that an examination region of the object  330  is disposed between the X-ray generating portion  318  and the X-ray detecting portion  315 . 
         [0108]    As the object  330  is inserted into the tunnel  311  of the gantry  310  by the transport portion  322  of the table  320 , the gantry  310  may rotate around the object  330  by a predetermined angle or 360 degrees at the same time when cross-sectional images at various angles are obtained by the X-ray generating portion  318  and the X-ray detecting portion  315 . 
         [0109]    First position recognition members  315 ,  316 , and  317  may be provided at an inner side of the gantry  310 . A first moving portion to rotate the X-ray generating portion  318  and the X-ray detecting portion  315  may be provided at an inner side of the gantry  310 . The first position recognition members  315 ,  316 , and  317  may include a first barcode portion  317  that may surround the inner side of the gantry  310  in the form of a circle. The first bar code portion  317  may be provided to recognize the position of at least one of the X-ray generating portion  318  and the X-ray detecting portion  315  that may be provided at an inner wall of the gantry  310 . 
         [0110]    A first bar code reader portion  316  to recognize the first bar code portion may be disposed at a rear side of the X-ray generating portion  318  or a rear side of the X-ray detecting portion  315  that rotate. The first barcode reader portion  316  may be disposed opposite the inner wall of the gantry  310  where the first barcode portion  317  may be positioned. 
         [0111]    The table  320  may be provided with second position recognition members  323 ,  324 , and  325 . A second moving portion may be provided at a coupling surface where the support portion  321  is coupled to the transport portion  322  that may be movable to the inside of the gantry  310 . A second bar code portion  323  may be provided at a lower side of the transport portion  322 , and a second bar code reader portion  324  may be provided at one side of the support portion  321 . The second bar code reader portion  324  may be disposed opposite the second bar code portion  323 . Accordingly, as the transport portion  322  is introduced to the inside of the gantry  310 , the second bar code reader portion  324  may recognize the second bar code portion  323 , which may be provided at a lower side of the transport portion  322 , so that the movement of the transport portion  322  may be recognized. 
         [0112]    Similar to the above described embodiment, the position recognition members illustrated in  FIGS. 8 and 9  may also include protrusions  315  and  325 . In a case where the bar code reader portion is positioned at an inner side of the gantry, the gantry may be formed using transparent material that allows light to pass therethrough. 
         [0113]    While aspects of the present invention has been particularly shown and described with reference to differing embodiments thereof, it should be understood that these embodiments should be considered in a descriptive sense only and not for purposes of limitation. Descriptions of features or aspects within each embodiment should typically be considered as available for other similar features or aspects in the remaining embodiments. Suitable results may equally be achieved if the described techniques are performed in a different order and/or if components in a described system, architecture, device, or circuit are combined in a different manner and/or replaced or supplemented by other components or their equivalents. 
         [0114]    Thus, although a few embodiments have been shown and described, with additional embodiments being equally available, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.