Document Detail


Evaluation of image quality and radiation dose of thoracic and coronary dual-source CT in 110 infants with congenital heart disease.
MedLine Citation:
PMID:  19319514     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: There are only a few reports on the diagnostic accuracy, and the technical and clinical feasibility, of multidetector CT (MDCT) in infants with congenital heart disease (CHD). OBJECTIVE: To evaluate the image quality and radiation dose of DSCT in babies with CHD. MATERIALS AND METHODS: From November 2006 to November 2007, 110 consecutive infants with CHD referred for pre- or postoperative CT evaluation were included. All these infants had a spiral angiothoracic DSCT scan after injection of 300 mg/ml iopromide at 0.5-1 ml/s with a power injector using a low-dose protocol (80 kVp and 10 mAs/kg). Of these infants, 34 also underwent an ECG-gated coronary CT scan for evaluation of the course of the coronary arteries. RESULTS: No serious adverse events were recorded. The mean dose-length product was 8+/-6 mGy x cm (effective dose 0.5+/-0.2 mSv) and 21+/-9 mGy x cm (effective dose 1.3+/-0.6 mSv) during the non-ECG-gated spiral acquisition and ECG-gated acquisition, respectively. Diagnostic quality images were achieved with the spiral acquisition in 89% of cases. Compared to the spiral mode, ECG-gated acquisition significantly improved the visualization of the coronary arteries, with a diagnostic rate of 91% and 84% for the left and right coronary arteries, respectively. CONCLUSION: DSCT together with iopromide at 300 mg/ml is a valuable tool for the routine clinical evaluation of infants with CHD. ECG-gated acquisition provides reliable visualization of the course of the coronary arteries.
Authors:
Moez Ben Saad; Adela Rohnean; Anne Sigal-Cinqualbre; Ghazal Adler; Jean-Francois Paul
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article     Date:  2009-03-25
Journal Detail:
Title:  Pediatric radiology     Volume:  39     ISSN:  1432-1998     ISO Abbreviation:  Pediatr Radiol     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2009-06-10     Completed Date:  2009-08-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0365332     Medline TA:  Pediatr Radiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  668-76     Citation Subset:  IM    
Affiliation:
Radiology Department, CC Marie Lannelongue, 133 av de la Résistance, Plessis-Robinson, 92350, France.
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MeSH Terms
Descriptor/Qualifier:
Body Burden*
Coronary Angiography / methods*
Female
Heart Defects, Congenital / radiography*
Humans
Infant
Infant, Newborn
Male
Radiation Dosage
Radiographic Image Enhancement / methods*
Radiography, Thoracic / methods*
Relative Biological Effectiveness
Reproducibility of Results
Sensitivity and Specificity
Tomography, X-Ray Computed / methods*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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