| 摘要 |
PROBLEM TO BE SOLVED: To achieve high spatial resolving power, high time resolving power, good image quality and enough imaging range, and to achieve high time resolving power without substantially attaining high rotating speed of a gantry. SOLUTION: This method includes a step of rotating a gantry 54 at a substantially slow rotation speed around a volume of interest as the center. The gantry 54 includes a set of X-ray source points. The X-ray source points include one or more discrete emission points 70, 72 and a circular arc of discrete or continuous X-ray source points 74. The method then includes a step of obtaining projection data from the set of X-ray source points and a step of performing a suitable reconstruction based on the projection data obtained from the set of X-ray source points to generate one or more reconstructed images. COPYRIGHT: (C)2007,JPO&INPIT
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