| 摘要 |
PROBLEM TO BE SOLVED: To provide a nuclear medicine diagnostic apparatus capable of improving scatter correction accuracy, and a diagnostic system used for the nuclear medicine diagnostic apparatus. SOLUTION: A background region is extracted using transmission data to obtain a physical quantity which minimizes the difference quantity between emission data (an original image) related to the background region and a scatter component. The physical quantity derived via each means of a superposition integrating-subtracting section 14 is a value obtained in every imaging environment of a subject and is optimized for every imaging environment of the subject. Based on the thus obtained physical quantity, the difference quantity between the scatter component and the emission data (the original image) can thereby be obtained as final emission data according to each imaging environment of the subject, and scatter correction accuracy based on scatter correction by a low-pass filter (LPF) 14d and a subtractor 14g can be improved. COPYRIGHT: (C)2009,JPO&INPIT
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