Quantitative assessment of motion effects in dual-source dual energy CT and dual-source photon-counting detector CT

Zaki Ahmed; Kishore Rajendran; Hao Gong; Cynthia McCollough; Shuai Leng

doi:10.1117/12.2611030

4 April 2022 Quantitative assessment of motion effects in dual-source dual energy CT and dual-source photon-counting detector CT

Zaki Ahmed, Kishore Rajendran, Hao Gong, Cynthia McCollough, Shuai Leng

Author Affiliations +

Proceedings Volume 12031, Medical Imaging 2022: Physics of Medical Imaging; 120311P (2022) https://doi.org/10.1117/12.2611030
Event: SPIE Medical Imaging, 2022, San Diego, California, United States

Abstract

Dual-source CT can provide high temporal resolution single energy imaging, but this is sacrificed in dual-energy mode (DS-DE). The current study evaluates a dual-source photon-counting-detector (DS-PCD) CT capable of high temporal resolution (66 ms) dual-energy imaging. A rod simulating coronary artery motion was scanned on both DS-DE and DS-PCD CT scanners and image quality was evaluated. Spatial registration—quantified by dice coefficient—between the high and low energy images was better with DS-PCD than DS-DE. Furthermore, the rod had a more circular appearance and its diameter was more accurate in iodine maps generated by DS-PCD whereas DS-DE suffered from motion artifacts.

Conference Presentation

Citation Download Citation

Zaki Ahmed, Kishore Rajendran, Hao Gong, Cynthia McCollough, and Shuai Leng "Quantitative assessment of motion effects in dual-source dual energy CT and dual-source photon-counting detector CT", Proc. SPIE 12031, Medical Imaging 2022: Physics of Medical Imaging, 120311P (4 April 2022); https://doi.org/10.1117/12.2611030

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available