The advantages of CZT (cadmium zinc telluride) detectors in cardiac imaging are mainly reflected in the following aspects:

The advantages of CZT (cadmium zinc telluride) detectors in cardiac imaging are mainly reflected in the following aspects:
 
- High spatial resolution: CZT detectors enable higher spatial resolution, which helps to observe cardiac structures and lesions more clearly. For example, photon-counting detector CT (PCD-CT) uses smaller detector elements, and the scanning slice thickness can reach 0.2 mm, which is very helpful for detecting tiny calcifications and stenotic lesions.
 
- Spectral imaging capability: CZT detectors have unique spectral imaging capabilities, which can count and measure the energy of individual incident photons and classify them into different energy intervals. This capability improves the ability to distinguish tissue types and substances, enabling a variety of advanced image reconstructions, such as virtual non-iodine (VNI) images, virtual non-calcium images, and virtual monochromatic images (VMI).
 
- Reduction of artifacts: CZT detectors perform excellently in reducing artifacts, especially in coronary artery calcification and stent imaging. Traditional CT imaging is affected by blooming and beam-hardening artifacts, making it difficult to accurately evaluate in-stent restenosis. By selecting appropriate acquisition and reconstruction parameters, CZT detectors can improve the accuracy of in-stent restenosis evaluation.
 
- Improvement of diagnostic accuracy: CZT detectors have high sensitivity, specificity, and accuracy in the diagnosis of coronary artery diseases. They can reduce the false-positive rate of coronary heart disease diagnosis, as well as unnecessary invasive coronary angiography (ICA) and repeated scans.