A method of changing at least one from among a direction and position of a plane selection line for acquiring an image of a plane of interest of an object, the method comprising: acquiring a medical image of an object; displaying a first plane image acquired along a first plane selection line of the medical image; setting a pattern which is used to change at least one of the direction and position of the plane selection line; changing at least one of the direction and position of the plane selection line, based on the set pattern; and displaying a second plane image acquired along the changed plane selection line, wherein the plane selection line is automatically or manually selected based on an anatomical position of a part of interest, a measurement target item, and an anatomical view in the object, wherein the setting of the pattern comprises: extracting the first plane selection line, for a first standard image to be acquired as the first plane image and steps (a-c) of: a) extracting a reference region from the acquired medical image; b) rotating the extracted first plane selection line by a certain angle based on the reference region so as to change the extracted first plane selection line to a second plane selection line; and c) generating, as the pattern, a rotation movement from the first plane selection line to the second plane selection line, or steps (d-g) of: d) generating at least one second plane selection line which is moved and disposed in a certain direction from the extracted first plane selection line; e) extracting the generated at least one second plane selection line; and f) generating the pattern in an order where the at least one second plane selection line is extracted, g) wherein the certain direction comprises at least one of an up direction, a down direction, a left direction, a right direction, and a diagonal direction. acquiring a medical image of an object; displaying a first plane image acquired along a first plane selection line of the medical image; setting a pattern which is used to change at least one of the direction and position of the plane selection line; changing at least one of the direction and position of the plane selection line, based on the set pattern; and displaying a second plane image acquired along the changed plane selection line, wherein the plane selection line is automatically or manually selected based on an anatomical position of a part of interest, a measurement target item, and an anatomical view in the object, wherein the setting of the pattern comprises: extracting the first plane selection line, for a first standard image to be acquired as the first plane image and steps (a-c) of: a) extracting a reference region from the acquired medical image; b) rotating the extracted first plane selection line by a certain angle based on the reference region so as to change the extracted first plane selection line to a second plane selection line; and c) generating, as the pattern, a rotation movement from the first plane selection line to the second plane selection line, or steps (d-g) of: d) generating at least one second plane selection line which is moved and disposed in a certain direction from the extracted first plane selection line; e) extracting the generated at least one second plane selection line; and f) generating the pattern in an order where the at least one second plane selection line is extracted, g) wherein the certain direction comprises at least one of an up direction, a down direction, a left direction, a right direction, and a diagonal direction. extracting the first plane selection line, for a first standard image to be acquired as the first plane image and steps (a-c) of: a) extracting a reference region from the acquired medical image; b) rotating the extracted first plane selection line by a certain angle based on the reference region so as to change the extracted first plane selection line to a second plane selection line; and c) generating, as the pattern, a rotation movement from the first plane selection line to the second plane selection line, a) extracting a reference region from the acquired medical image; b) rotating the extracted first plane selection line by a certain angle based on the reference region so as to change the extracted first plane selection line to a second plane selection line; and c) generating, as the pattern, a rotation movement from the first plane selection line to the second plane selection line, or steps (d-g) of: d) generating at least one second plane selection line which is moved and disposed in a certain direction from the extracted first plane selection line; e) extracting the generated at least one second plane selection line; and f) generating the pattern in an order where the at least one second plane selection line is extracted, g) wherein the certain direction comprises at least one of an up direction, a down direction, a left direction, a right direction, and a diagonal direction. d) generating at least one second plane selection line which is moved and disposed in a certain direction from the extracted first plane selection line; e) extracting the generated at least one second plane selection line; and f) generating the pattern in an order where the at least one second plane selection line is extracted, g) wherein the certain direction comprises at least one of an up direction, a down direction, a left direction, a right direction, and a diagonal direction.