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High-pitch, Dual-source Chest Computed Tomography Angiography Without Electrocardiographic Synchronization: Evaluation of Cardiac Motion Artifacts on Pulmonary Circulation.
MedLine Citation:
PMID:  23615574     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE:: To evaluate the frequency and severity of cardiac motion artifacts on high-pitch, dual-source computed tomography angiograms of the chest. MATERIALS AND METHODS:: One hundred consecutive patients underwent a non-electrocardiogram-gated, dual-source chest computed tomography examination with high pitch and high temporal resolution. RESULTS:: The mean (±SD) duration of data acquisition was 0.9 (±0.07) seconds and the mean (±SD) heart rate was 78.9 (±15.2) bpm. Cardiac motion artifacts were seen at the level of the pulmonary trunk in 2 patients (2%). Among the 7000 pulmonary arteries analyzed (5 central, 5 lobar, 20 segmental, and 40 subsegmental arteries/patient), pseudofilling defects were depicted at the level of 3 arteries (0.042%), always seen with the concurrent presence of a "double contour" appearance of the vessel walls. Twinkling star artifacts beyond the subsegmental level were seen within 76 segments (76/2000; 3.8% of the examined segments), most commonly in the lingula and left lower lobe. A total of 23 patients (23%) showed at least 1 category of motion artifacts, whereas 77 patients (77%) had motion-free imaging of the pulmonary arteries. CONCLUSIONS:: Routine scanning of patients with high pitch and high temporal resolution provides examinations devoid of detrimental cardiac motion artifacts.
Authors:
Nunzia Tacelli; Christine Darchis; François Pontana; Jean-Baptiste Faivre; Valérie Deken; Alain Duhamel; Colm Murphy; Jacques Remy; Martine Remy-Jardin
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-4-22
Journal Detail:
Title:  Journal of thoracic imaging     Volume:  -     ISSN:  1536-0237     ISO Abbreviation:  J Thorac Imaging     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-4-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8606160     Medline TA:  J Thorac Imaging     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
*Department of Thoracic Imaging, Hospital Calmette †Department of Medical Statistics, University of Lille Nord de France, Lille, France.
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