TY - GEN
T1 - Practical workflow for arbitrary non-circular orbits for CT with clinical robotic C-arms
AU - Ma, Yiqun Q.
AU - Gang, Jianan
AU - Reynolds, Tess
AU - Ehtiati, Tina
AU - Li, Junyuan
AU - Dillon, Owen
AU - Russ, Tom
AU - Wang, Wenying
AU - Weiss, Clifford
AU - Theodore, Nicholas
AU - Hong, Kelvin
AU - O'Brien, Ricky
AU - Siewerdsen, Jeffrey
AU - Stayman, J. Webster
N1 - Funding Information:
This work was supported, in part, by NIH grant R01EB027127 and, in part, by the Cancer Institute of New South Wales Fellowship 2021/ECF1293
Publisher Copyright:
© 2022 SPIE.
PY - 2022
Y1 - 2022
N2 - Non-circular orbits in cone-beam CT (CBCT) imaging are increasingly being studied for potential benefits in field-of-view, dose reduction, improved image quality, minimal interference in guided procedures, metal artifact reduction, and more. While modern imaging systems such as robotic C-arms are enabling more freedom in potential orbit designs, practical implementation on such clinical systems remains challenging due to obstacles in critical stages of the workflow, including orbit realization, geometric calibration, and reconstruction. In this work, we build upon previous successes in clinical implementation and address key challenges in the geometric calibration stage with a novel calibration method. The resulting workflow eliminates the need for prior patient scans or dedicated calibration phantoms, and can be conducted in clinically relevant processing times.
AB - Non-circular orbits in cone-beam CT (CBCT) imaging are increasingly being studied for potential benefits in field-of-view, dose reduction, improved image quality, minimal interference in guided procedures, metal artifact reduction, and more. While modern imaging systems such as robotic C-arms are enabling more freedom in potential orbit designs, practical implementation on such clinical systems remains challenging due to obstacles in critical stages of the workflow, including orbit realization, geometric calibration, and reconstruction. In this work, we build upon previous successes in clinical implementation and address key challenges in the geometric calibration stage with a novel calibration method. The resulting workflow eliminates the need for prior patient scans or dedicated calibration phantoms, and can be conducted in clinically relevant processing times.
KW - C-arms. non-circular orbits
KW - Cone-beam CT
KW - geometric calibration
UR - http://www.scopus.com/inward/record.url?scp=85141767149&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85141767149&partnerID=8YFLogxK
U2 - 10.1117/12.2647158
DO - 10.1117/12.2647158
M3 - Conference contribution
AN - SCOPUS:85141767149
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 7th International Conference on Image Formation in X-Ray Computed Tomography
A2 - Stayman, Joseph Webster
PB - SPIE
T2 - 7th International Conference on Image Formation in X-Ray Computed Tomography
Y2 - 12 June 2022 through 16 June 2022
ER -