| Comparison of radiation doses from multislice computed tomography coronary angiography and conventional diagnostic angiography. | |
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MedLine Citation:
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PMID: 16682310 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: The aim of this study was to quantify and compare effective doses from conventional angiography and multislice computed tomography (MSCT) coronary angiography using a 16-slice scanner. BACKGROUND: Multislice computed tomography is now a viable modality for cardiac imaging. However, for any diagnostic use of ionizing radiation, the risk to the patient must be considered and justified. METHODS: Multislice computed tomography angiography and conventional angiography were used to assess 180 patients with suspected coronary artery disease. Estimates of effective dose were derived from exposure data recorded for each patient examination. For each modality, a comparable calculation technique was used, based on Monte Carlo modeling of the standard Cristy phantom. RESULTS: In a subset of 91 directly comparable patients the mean effective dose for MSCT coronary angiography was 14.7 mSv (SD 2.2) and that for conventional angiography was 5.6 mSv (SD 3.6). A significant difference in effective dose was seen between the two protocols. CONCLUSIONS: The mean effective dose for MSCT coronary angiography was significantly higher than that for conventional angiography. As MSCT cardiac scanners become increasingly available, operators must be aware of the radiation dose and the factors that affect it. |
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Authors:
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Duncan R Coles; Mary A Smail; Ian S Negus; Peter Wilde; Martin Oberhoff; Karl R Karsch; Andreas Baumbach |
Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't Date: 2006-04-19 |
Journal Detail:
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Title: Journal of the American College of Cardiology Volume: 47 ISSN: 1558-3597 ISO Abbreviation: J. Am. Coll. Cardiol. Publication Date: 2006 May |
Date Detail:
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Created Date: 2006-05-09 Completed Date: 2006-05-23 Revised Date: 2007-03-12 |
Medline Journal Info:
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Nlm Unique ID: 8301365 Medline TA: J Am Coll Cardiol Country: United States |
Other Details:
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Languages: eng Pagination: 1840-5 Citation Subset: AIM; IM |
Affiliation:
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Department of Cardiology, Bristol Heart Institute, Bristol Royal Infirmary, Bristol, United Kingdom. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Coronary Angiography* Coronary Disease / radiography Female Humans Male Middle Aged Radiation Dosage Tomography, X-Ray Computed* |
| Comments/Corrections | |
Comment In:
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J Am Coll Cardiol. 2007 Feb 20;49(7):828; author reply 828-9
[PMID:
17306716
]
J Am Coll Cardiol. 2006 May 2;47(9):1846-9 [PMID: 16682311 ] |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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