| CT angiography. | |
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MedLine Citation:
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PMID: 10101654 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The advent of spiral (helical, volume) CT has revolutionised the performance of body CT and allowed the development of CT angiography (CTA). CT angiography is a non-invasive method of visualising the vascular system and in some instances can replace conventional angiography. In spiral CT a volume of data is obtained rapidly with no respiratory misregistration at peak vascular opacification following the peripheral injection of contrast. Appropriate timing will ensure that either the venous or arterial tree is visualised and from the volume of data multiple overlapping slices can be obtained to generate 2D and 3D images with no increase in radiation to the patient. CT angiography may be performed as a dedicated study or be undertaken retrospectively using post-processing of data from a conventional diagnostic spiral scan to provide additional information about the vascular tree. When undertaken as a dedicated study CTA is quicker, less invasive and less costly than a conventional angiogram with a decrease in the radiation dose to the patient; however, the spatial resolution is limited with vessels less than 2 mm not visualised and there is no contrast saving. |
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Authors:
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S C Rankin |
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Publication Detail:
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Type: Comparative Study; Journal Article; Review |
Journal Detail:
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Title: European radiology Volume: 9 ISSN: 0938-7994 ISO Abbreviation: Eur Radiol Publication Date: 1999 |
Date Detail:
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Created Date: 1999-05-18 Completed Date: 1999-05-18 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9114774 Medline TA: Eur Radiol Country: GERMANY |
Other Details:
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Languages: eng Pagination: 297-310 Citation Subset: IM |
Affiliation:
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Department of Radiology, Guy's Hospital, London, UK. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Angiography
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methods* Contrast Media / administration & dosage Humans Injections, Intravenous Radiation Dosage Reproducibility of Results Retrospective Studies Sensitivity and Specificity Tomography, X-Ray Computed* Vascular Diseases / radiography* |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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