An Optimized K-Edge Signal Extraction Method for K-Edge Decomposition Imaging Using a Photon Counting Detector

In K-edge decomposition imaging for the multienergy system with photon counting detectors (PCDs), energy bins significantly affect intensity of extracted signal. Optimized can provide a better signal to improve quality images and have potential reduce amount contrast agents. this article, we present Gaussian spectrum selection method (GSSM) which extract an optimized by optimizing compared conventional theoretical attenuation (TASM). GSSM decides width locations using simple but effective model system, takes degraded resolution detector continuous x-ray into consideration. Besides, establish objective function, difference relative standard deviation ratio (DAR), determine optimal maximize The results show that gets than TASM especially at lower concentration level new has