Spiral CT: current status and future directions

Ge Wang; Ping Chin Cheng; Michael W. Vannier M.D.

doi:10.1117/12.279358

24 October 1997 Spiral CT: current status and future directions

Ge Wang, Ping Chin Cheng, Michael W. Vannier M.D.

Proceedings Volume 3149, Developments in X-Ray Tomography; (1997) https://doi.org/10.1117/12.279358
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

In x-ray computed tomography (CT) spiral/helical scanning is achieved by continuous and simultaneous source rotation, object translation and data acquisition. In medical imaging, fan-beam spiral CT has replaced conventional incremental CT. Also, cone-beam spiral CT is feasible and advantageous is important applications. In this paper, resolution characteristics, protocol optimization, and image restoration are discussed in fan-beam spiral CT. Then, generalized Feldkamp cone-beam reconstruction is described is spiral geometry. Based on Snyder's iterative deblurring theory, a unified iterative algorithm is reported to handle incomplete cone-beam data. Finally, several future possibilities in spiral CT are mentioned.

Citation Download Citation

Ge Wang, Ping Chin Cheng, and Michael W. Vannier M.D. "Spiral CT: current status and future directions", Proc. SPIE 3149, Developments in X-Ray Tomography, (24 October 1997); https://doi.org/10.1117/12.279358

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