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Clin Imaging. 2015 Jul-Aug;39(4):603-7. doi: 10.1016/j.clinimag.2015.03.005. Epub 2015 Mar 20.

New hybrid reformations of peripheral CT angiography: do we still need axial images?

Author information

1
Section of Cardiovascular and Interventional Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria. Electronic address: ruediger.schernthaner@meduniwien.ac.at.
2
Section of Cardiovascular and Interventional Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria. Electronic address: florian.wolf@meduniwien.ac.at.
3
Institute of Computer Graphics and Algorithms, Technical University of Vienna, Favoritenstraße 9-11, 1040 Vienna, Austria. Electronic address: gm@cg.tuwien.ac.at.
4
Section of Cardiovascular and Interventional Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria. Electronic address: michael.weber@meduniwienac.at.
5
Commission for Scientific Visualization, Austrian Academy of Sciences, Donau-City Straße 1, 1220 Vienna, Austria. Electronic address: milos.sramek@oeaw.ac.at.
6
Institute of Computer Graphics and Algorithms, Technical University of Vienna, Favoritenstraße 9-11, 1040 Vienna, Austria. Electronic address: groeller@cg.tuwien.ac.at.
7
Section of Cardiovascular and Interventional Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria. Electronic address: christian.loewe@meduniwien.ac.at.

Abstract

PURPOSE:

To quantify the detectability of peripheral artery stenosis on hybrid CT angiography (CTA) reformations.

METHODS:

Hybrid reformations were developed by combining multipath curved planar reformations (mpCPR) and maximum intensity projections (MIP). Fifty peripheral CTAs were evaluated twice: either with MIP, mpCPR and axial images or with hybrid reformations only. Digital subtraction angiography served as gold standard.

RESULTS:

Using hybrid reformations, two independent readers detected 88.0% and 81.3% of significant stenosis, respectively. However, CTA including axial images detected statistically significant more lesions (98%).

CONCLUSION:

Peripheral CTA reading including axial images is still recommended. Further improvement of these hybrid reformations is necessary.

KEYWORDS:

CT angiography; Peripheral arterial occlusive disease; Postprocessing; Three-dimensional reformations

PMID:
25825345
DOI:
10.1016/j.clinimag.2015.03.005
[Indexed for MEDLINE]

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