Novel technique for addressing streak artifact in gated dual-source MDCT angiography utilizing ECG-editing.

Autor: Meyer LT; Department of Radiology, Duke University Medical Center, Durham, NC 27710, USA., Boll DT
Jazyk: angličtina
Zdroj: European radiology [Eur Radiol] 2008 Nov; Vol. 18 (11), pp. 2446-8. Date of Electronic Publication: 2008 May 20.
DOI: 10.1007/s00330-008-1013-y
Abstrakt: Streak artifact is an important source of image degradation in computed tomographic imaging. In coronary MDCT angiography, streak artifact from pacemaker leads in the SVC can render segments of the right coronary artery uninterpretable. With current technology in clinical practice, there is no effective way to eliminate streak artifact in coronary MDCT angiography entirely. We propose a technique to minimize the impact of streak artifact in retrospectively gated coronary MDCT angiography by utilizing small shifts in the reconstruction window. In our experience, previously degraded portions of the coronary vasculature were able to be well evaluated using this technique.
Databáze: MEDLINE