| Dual-energy CT angiography of pelvic and lower extremity arteries: dual-energy bone subtraction versus manual bone subtraction. | |
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MedLine Citation:
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PMID: 19822242 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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AIM: To analyse the effect of dual-energy bone subtraction (DEBS) on the image quality of peripheral computed tomography (CT) angiograms. MATERIALS AND METHODS: Twenty patients underwent dual-energy CT angiography of the pelvic and lower extremity arteries using commercially available equipment. Two different methods of image processing were employed for each CT angiographic dataset: (1) DEBS, and (2) manual bone subtraction (MBS). Effects on vessel visibility and artificial vessel alterations were compared. RESULTS: Bone removal, and the resultant visibility of vessel segments, were significantly better with DEBS than with MBS (p=0.011). The overall frequency of vessel-related alterations was lower in MBS compared with DEBS (p=0.001). Specifically, in the 249 vessel segments with calcified plaques, MBS generated fewer vessel alterations than DEBS (p<0.001). In the 309 vessel segments without calcified plaques, there was no difference in vessel alteration between the two techniques (p=0.22). CONCLUSION: DEBS facilitates bone removal in peripheral CT angiography, but generates more vessel alterations, particularly in the presence of calcified plaque. |
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Authors:
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S Yamamoto; J McWilliams; C Arellano; W Marfori; W Cheng; T Mcnamara; W J Quinones-Baldrich; S G Ruehm |
Publication Detail:
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Type: Comparative Study; Journal Article Date: 2009-09-02 |
Journal Detail:
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Title: Clinical radiology Volume: 64 ISSN: 1365-229X ISO Abbreviation: Clin Radiol Publication Date: 2009 Nov |
Date Detail:
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Created Date: 2009-10-13 Completed Date: 2009-12-02 Revised Date: 2010-04-13 |
Medline Journal Info:
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Nlm Unique ID: 1306016 Medline TA: Clin Radiol Country: England |
Other Details:
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Languages: eng Pagination: 1088-96 Citation Subset: IM |
Copyright Information:
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2009 The Royal College of Radiologists. |
Affiliation:
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Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA. syamamoto@gmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Algorithms Angiography / methods Angiography, Digital Subtraction / methods* Bones of Lower Extremity / radiography Female Humans Lower Extremity / blood supply*, radiography Male Middle Aged Pelvis / blood supply*, radiography Prospective Studies Radiographic Image Interpretation, Computer-Assisted / methods* Radiography, Dual-Energy Scanned Projection / methods* Subtraction Technique Tomography, X-Ray Computed / methods* |
| Comments/Corrections | |
Erratum In:
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Clin Radiol. 2010 Mar;65(3):258 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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