Dual-energy CT angiography of pelvic and lower extremity arteries: dual-energy bone subtraction versus manual bone subtraction
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 d...
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Published in | Clinical radiology Vol. 64; no. 11; pp. 1088 - 1096 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier Ltd
01.11.2009
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | 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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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0009-9260 1365-229X |
DOI: | 10.1016/j.crad.2009.07.009 |