A Reduced Radiation Dose CTA

Zhijun Cai; Er-Wei Bai; Ge Wang

doi:10.3182/20120829-3-HU-2029.00016

Back

Journal article

Open access

Peer reviewed

A Reduced Radiation Dose CTA

Zhijun Cai, Er-Wei Bai and Ge Wang

IFAC Proceedings Volumes, Vol.45(18), pp.184-189

2012

DOI: 10.3182/20120829-3-HU-2029.00016

Files and links (1)

url

https://doi.org/10.3182/20120829-3-HU-2029.00016View

Published (Version of record) Open Access

Abstract

Computed Tomography Angiography (CTA) has become an important tool in diagnosing and evaluating vascular diseases; however, its usage has been limited by the radiation concern. In this paper, we propose a (radiation) dose reduction approach along with the adaptive bolus chasing CTA techniques, which are capable of tracking the contrast bolus peak during the CTA scan. By modulating the tube current (and collimator width) online, we can reduce the total radiation dose and maintain the contrast to noise ratio (CNR) level of the blood vessel. Numerical experiments results show that the effective radiation dose can be reduced about 39% by using the proposed dose reduction method.

Details

Title: Subtitle: A Reduced Radiation Dose CTA
Creators: Zhijun Cai - University of Iowa
Er-Wei Bai - University of Iowa
Ge Wang - Virginia Tech
Resource Type: Journal article
Publication Details: IFAC Proceedings Volumes, Vol.45(18), pp.184-189
DOI: 10.3182/20120829-3-HU-2029.00016
ISSN: 1474-6670
Language: English
Date published: 2012
Academic Unit: Electrical and Computer Engineering
Record Identifier: 9984197427102771

Metrics

23 Record Views