Emerging Trends and Future Perspective of Novel Cardiac SPECT Technology

In response to concerns about overuse and increasing radiation exposure of myocardial perfusion imaging, nuclear medicine societies have declared statements aimed at lowering its radiation dose and costs. Simultaneously, two vendors have launched novel SPECT scanners with solid-state semiconductor detectors. Discovery NM 530c and D-SPECT utilize the same cadmium zinc telluride (CZT) detectors with a different combination of high-sensitivity multi-pinhole or parallel-hole collimator which focuses on the heart. The physical performance of those is dramatically higher than that of conventional Anger cameras; however, 2 CZT cameras are inherently different.