Emission computerized axial tomography is achievable in any nuclear medicine department from multiple gamma camera views. Data are collected by rotating the patient in front of the camera. A simple fast algorithm is implemented, known as the convolution technique: first the projection data are Fourier transformed and then an original filter designed for optimizing resolution and noise suppression is applied; finally the inverse transform of the latter operation is back-projected. This program, which can also take into account the attenuation for single photon events, was executed with good results on phantoms and patients. We think that it can be easily implemented for specific diagnostic problems.
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Pelletier, J.L., Milan, C., Touzery, C. et al. Emission computerized axial tomography from multiple gamma-camera views using frequency filtering. Eur. J. Nucl. Med. 5, 1–5 (1980). https://doi.org/10.1007/BF00261198
- Nuclear Medicine
- Single Photon
- Axial Tomography
- Gamma Camera