TY - GEN
T1 - Quantification of coronary calcification using high-resolution photon-counting-detector CT and an image domain denoising algorithm
AU - Vanmeter, Patrick D.
AU - Marsh, Jeffery
AU - Rajendran, Kishore
AU - Leng, Shuai
AU - McCollough, Cynthia
N1 - Publisher Copyright:
© 2022 SPIE.
PY - 2022
Y1 - 2022
N2 - Coronary artery calcification is an important indicator of coronary disease. Accurate volume quantification of coronary calcification using computed tomography (CT) is challenging due to calcium blooming. In this study, ex-vivo coronary specimens were scanned on an investigational photon-counting detector (PCD) CT scanner and the estimated coronary calcification volume were compared with a conventional energy-integrating detector (EID) CT. An image-based denoising algorithm was applied to the PCD-CT images to achieve similar noise levels as EID-CT. Calcifications were segmented to estimate the volume, with micro-CT images of the same calcifications serving as reference. PCD-CT images showed reduced calcium blooming artifacts.
AB - Coronary artery calcification is an important indicator of coronary disease. Accurate volume quantification of coronary calcification using computed tomography (CT) is challenging due to calcium blooming. In this study, ex-vivo coronary specimens were scanned on an investigational photon-counting detector (PCD) CT scanner and the estimated coronary calcification volume were compared with a conventional energy-integrating detector (EID) CT. An image-based denoising algorithm was applied to the PCD-CT images to achieve similar noise levels as EID-CT. Calcifications were segmented to estimate the volume, with micro-CT images of the same calcifications serving as reference. PCD-CT images showed reduced calcium blooming artifacts.
KW - Photon counting detector CT
KW - calcium quantification
KW - coronary artery disease
KW - coronary calcifications
KW - image domain denoising
UR - http://www.scopus.com/inward/record.url?scp=85131196485&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85131196485&partnerID=8YFLogxK
U2 - 10.1117/12.2612999
DO - 10.1117/12.2612999
M3 - Conference contribution
AN - SCOPUS:85131196485
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Medical Imaging 2022
A2 - Zhao, Wei
A2 - Yu, Lifeng
PB - SPIE
T2 - Medical Imaging 2022: Physics of Medical Imaging
Y2 - 21 March 2022 through 27 March 2022
ER -