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CardioVascular and Interventional Radiology

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Open Access 01-05-2018 | Clinical Investigation

Multipath Curved Planar Reformations of Peripheral CT Angiography: Diagnostic Accuracy and Time Efficiency

Authors: Markus M. Schreiner, Hannes Platzgummer, Sylvia Unterhumer, Michael Weber, Gabriel Mistelbauer, Eduard Groeller, Christian Loewe, Ruediger E. Schernthaner

Published in: CardioVascular and Interventional Radiology | Issue 5/2018

Abstract

Objectives

To compare diagnostic performance and time efficiency between 3D multipath curved planar reformations (mpCPRs) and axial images of CT angiography for the pre-interventional assessment of peripheral arterial disease (PAD), with digital subtraction angiography as the standard of reference.

Methods

Forty patients (10 females, mean age 72 years), referred to CTA prior to endovascular treatment of PAD, were prospectively included and underwent peripheral CT angiography. A semiautomated toolbox was used to render mpCPRs. Twenty-one arterial segments were defined in each leg; for each segment, the presence of stenosis > 70% was assessed on mpCPRs and axial images by two readers, independently, with digital subtraction angiography as gold standard.

Results

Both readers reached lower sensitivity (Reader 1: 91 vs. 94%, p = 0.08; Reader 2: 89 vs. 93%, p = 0.03) but significantly higher specificity (Reader 1: 94 vs. 89%, p < 0.01; Reader 2: 96 vs. 95%, p = 0.01) with mpCPRs than with axial images. Reader 1 achieved significantly higher accuracy with mpCPRs (93 vs. 91%, p = 0.02), and Reader 2 had similar overall accuracy in both evaluations (94 vs. 94%, p = 0.96). Both readers read mpCPRs significantly faster than axial images (Reader 1: 5′45″ based on mpCPRs vs. 7′40″ based on axial images; Reader 2: 4′41″ based on mpCPRs vs. 6′57″ based on axial images; p < 0.01).

Conclusions

mpCPRs are a promising 3D reformation technique that facilitates a fast assessment of PAD with high diagnostic accuracy.

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Title: Multipath Curved Planar Reformations of Peripheral CT Angiography: Diagnostic Accuracy and Time Efficiency
Authors: Markus M. Schreiner
Hannes Platzgummer
Sylvia Unterhumer
Michael Weber
Gabriel Mistelbauer
Eduard Groeller
Christian Loewe
Ruediger E. Schernthaner
Publication date: 01-05-2018
Publisher: Springer US
Published in: CardioVascular and Interventional Radiology / Issue 5/2018
Print ISSN: 0174-1551
Electronic ISSN: 1432-086X
DOI: https://doi.org/10.1007/s00270-017-1846-3

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Multipath Curved Planar Reformations of Peripheral CT Angiography: Diagnostic Accuracy and Time Efficiency

Abstract

Objectives

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objectives

Methods

Results

Conclusions

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