Title :
SNR improvement in dedicated breast CT using energy weighting with photon counting detectors
Author :
Kalluri, Kesava ; Glick, Stephen J. ; Mahd, Mufeed
Author_Institution :
Univ. of Massachusetts, Lowell, MA, USA
Abstract :
Photon counting x-ray detectors (PCD) promise to provide substantial improvements in computed tomography (CT) as compared to Cesium Iodide based energy integrating x-ray detectors (CsI-EID). This paper investigates the possible improvements in signal-to-noise ratio (SNR) obtained by using a cadmium zinc telluride (CZT) crystal based PCD with energy weighting (EW) in low dose breast CT (BCT).
Keywords :
II-VI semiconductors; X-ray detection; biological organs; cadmium compounds; computerised tomography; diagnostic radiography; dosimetry; gynaecology; medical signal processing; photon counting; zinc compounds; CdZnTe; SNR improvement; cadmium zinc telluride crystal; cesium Iodide based energy integrating X-ray detectors; computed tomography; energy weighting; low-dose breast CT; photon counting X-ray detectors; signal-to-noise ratio; Biomedical imaging; Breast; Computed tomography; Detectors; Photonics; Signal to noise ratio; X-ray imaging; Breast CT; CZT; CdZnTe; CsI; Energy Weighting; Photon Counting; X-Ray detectors;
Conference_Titel :
Bioengineering Conference (NEBEC), 2011 IEEE 37th Annual Northeast
Conference_Location :
Troy, NY
Print_ISBN :
978-1-61284-827-3
DOI :
10.1109/NEBC.2011.5778614
