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The purpose of our research is to develop a new pinhole SPECT system using a triple head gamma camera system. The proposed data acquisition geometry used multi-pinhole collimators attached to each gamma camera. Acquired data were reconstructed with the OS-EM method. We evaluated the feasibility of the system with simulations. In the simulations, we evaluated three types of the pinhole collimators...
The purpose of our research is to develop a new brain single photon emission CT (SPECT) system with a semiconductor detector. For the detector we adopted CdZnTe semiconductor modular detectors to improve the energy resolution and spatial resolution. The size of a module was 39 × 39 mm2 (16 × 16 pixels) and the thickness of the CdZnTe crystal was 5 mm. With this modular detector we made three detector...
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