Patent Number: 
Section: abstract

Method and arrangement for implementing a system (10) for providing multi-angular SPECT radiation sampling utilizing slant-angle collimation. The system (10) includes a collimator (13) positioned between a radiating mass (19) within a patient (60) and a radiation detector (21). The collimator (13) is spaced apart from a translational path (25) of the radiating mass (19) at a predefined distance (24). A plurality of apertures (27) extend through the collimator (13) and each forms a passageway (28) for radiation rays (20) emanating from the radiating mass (19) in a direction substantially aligned with a longitudinal axis (29) of the respective passageway (29) and in this manner enables the aligned radiation rays (20) to strike the radiation detector (21). The plurality of passageways (28) include a first group (30) of passageways adjacently aligned in a first row (32) and arranged so that the longitudinal axes (29) of the first group (30) of passageways (32) are substantially contained in a first plane (34) oriented substantially perpendicularly to a central plane (16) of the collimator (13). Each of the parallel longitudinal axes (29) of the first row (32) of passageways are obliquely oriented with respect to the central plane (16) of the collimator (13) with an included angle (36) therebetween. Each of the included angles, when measured clockwise from the central plane (16) or face of the collimator (13) to a respective longitudinal axis, is an acute angle.