CT angiography of peripheral arterial bypass grafts: Accuracy and time-effectiveness of quantitative image analysis with an automated software tool

Academic Radiology
Denise KellerHatem Alkadhi

Abstract

Qualitative analysis of computed tomography (CT) angiography data often is limited by intra- and interobserver variability. The purpose of this study was to evaluate the time-effectiveness and accuracy of a quantitative CT angiography data analysis using automated software in comparison with qualitative axial and coronal CT image reading in patients with peripheral bypass grafts. Twenty-eight patients with 33 saphenous bypass grafts underwent 4-channel (n = 21) and 16-channel (n = 7) CT angiography. Two readers evaluated in consensus the CT data qualitatively on axial and coronal reconstructions and with the software regarding the presence of graft stenoses, aneurysmal changes, and arteriovenous fistulas. The time for data analysis was taken and the accuracy was compared with the results from digital subtraction angiography (DSA). No significant difference was present between data analysis time using axial and coronal CT images (4.9 +/- 1.5 minutes) and when using the software tool (5.5 +/- 1.4 minutes). Good (kappa = 0.652) to excellent (kappa = 1.000) intermodality agreement was present between qualitative and quantitative CT analysis regarding graft-related abnormalities. Sensitivity and specificity for diagnosing stenoses, ...Continue Reading

References

Jan 1, 1992·Annals of Vascular Surgery·J G TittleyP G Kalman
Jan 1, 1992·Radiology·J R Waugh, N Sacharias
May 1, 1990·Annals of Vascular Surgery·R L Dalman, L M Taylor
Mar 12, 1998·Radiology·G D RubinS Napel
Jan 19, 2000·European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery·N J AartsJ H van Bockel
Jan 1, 1996·Radiographics : a Review Publication of the Radiological Society of North America, Inc·M C Foshager, S S Sane
Apr 4, 2002·IEEE Transactions on Medical Imaging·Stephen R Aylward, Elizabeth Bullitt
Jan 20, 2004·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Tobias BoskampPeter Mildenberger
Apr 9, 2005·World Journal of Surgery·John E Connolly
May 21, 2005·European Radiology·Simon WildermuthBorut Marincek

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Citations

Sep 21, 2007·European Radiology·Marc C J M KockM G Myriam Hunink
Sep 30, 2008·The International Journal of Cardiovascular Imaging·Anja J ReimannMartin Heuschmid
Aug 29, 2006·Computer Methods and Programs in Biomedicine·Jean-Baptiste FasquelJacques Marescaux

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