Radiological imaging system
a radiation imaging and radiation technology, applied in the field of radiation imaging systems, can solve the problems of low detection rate of -rays, poor picture quality in ordinary cases, and inability to understand the positional relationship of surrounding organs, so as to improve energy resolution, less intimidating, accurate diagnosis
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embodiment 1
[0046] As shown in FIGS. 1 and 2, the radiological imaging system of the present embodiment has two independent gantries which comprise a bed 14 serving as a berthing apparatus, a PET imaging apparatus 1 serving as a first imaging apparatus, and an X-ray CT imaging apparatus 4 serving as a second imaging apparatus. As shown in FIG. 1, the radiological imaging system includes a data processing apparatus 12 and a display apparatus 13. An examinee (subject) H is loaded on the bed 14 which can move forward and backward along the body axis direction (X1 and X2 directions) of the examinee H, and the examinee H is imaged by the PET imaging apparatus 1 and the X-ray CT imaging apparatus 4.
A. (PET Imaging Apparatus)
[0047] The PET imaging apparatus 1 includes a number of semiconductor radiation detectors 21 (FIGS. 4, 8, 11). γ-rays radiated from the inside of the examinee H are detected by the semiconductor radiation detectors (hereinafter, simply referred to as detectors) 21. The PET imag...
embodiment 2
[0143] A radiological imaging system of another embodiment will be described below. As shown in FIG. 18, the present embodiment is different from Embodiment 1 in that semiconductor radiation detectors 21 are used as a radiation detector in an X-ray CT imaging apparatus 4. To be specific, a plurality of combined substrates 60 shown in FIGS. 19A, 19B are provided in a slicing direction (four slices in the present embodiment) via a detector holding part 46, and the combined substrates 60 rotates around an examinee H in synchronization with an X-ray source circumferential moving apparatus 41. As with the combined substrate 20 of Embodiment 1, the combined substrate 60 has detectors 21, resistors 23, analog ASICs 24A, ADCs 25, and a digital ASIC 26A. This configuration is similar to that of Embodiment 1 except for a smaller number of detectors 21, the analog ASIC 24, and the ADC 25. That is, 16 detectors 21 are provided in one line and thus 32 detectors 21 are provided on both sides one ...
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