Accuracy and variability of semiautomatic centerline analysis versus manual aortic measurement techniques for TEVAR

Objectives - This study aims to test whether inter-observer variability and time of diameter measurements for thoracic endovascular aortic repair (TEVAR) are improved by semiautomatic centerline analysis compared to manual assessment. - Methods - Preoperative computed tomography (CT) angiographies o...

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Hauptverfasser: Müller-Eschner, Matthias (VerfasserIn) , Rengier, Fabian (VerfasserIn) , Partovi, Sasan (VerfasserIn) , Weber, Tim (VerfasserIn) , Kopp-Schneider, Annette (VerfasserIn) , Geisbüsch, Philipp (VerfasserIn) , Kauczor, Hans-Ulrich (VerfasserIn) , Tengg-Kobligk, Hendrik von (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 11 January 2013
In: European journal of vascular and endovascular surgery
Year: 2013, Jahrgang: 45, Heft: 3, Pages: 241-247
ISSN:1532-2165
DOI:10.1016/j.ejvs.2012.12.003
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.ejvs.2012.12.003
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S1078588412007964
Volltext
Verfasserangaben:M. Müller-Eschner, F. Rengier, S. Partovi, T.F. Weber, A. Kopp-Schneider, P. Geisbüsch, H.-U. Kauczor, H. von Tengg-Kobligk

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520 |a Objectives - This study aims to test whether inter-observer variability and time of diameter measurements for thoracic endovascular aortic repair (TEVAR) are improved by semiautomatic centerline analysis compared to manual assessment. - Methods - Preoperative computed tomography (CT) angiographies of 30 patients with thoracic aortic disease (mean age 66.8 ± 11.6 years, 23 males) were retrospectively analysed by two blinded experts in vascular radiology. Maximum aortic diameters at three positions relevant to TEVAR were assessed (P1, distal to left common carotid artery; P2, distal to left subclavian artery; and P3, proximal to coeliac trunk) using three measurement techniques: manual axial slices (axial), manual double-oblique multiplanar reformations (MPRs) and semiautomatic centerline analysis. - Results - Diameter measurements by both centerline analysis and the axial technique did not significantly differ from MPR (p = 0.17 and p = 0.37). Total deviation index for 0.9 was for P1 2.7 mm (axial), 3.7 mm (MPR), 1.8 mm (centerline); for P2 2.0 mm (axial), 3.6 mm (MPR), 1.8 mm (centerline); and for P3 3.0 mm (axial), 3.5 mm (MPR), 2.5 mm (centerline). Measurement time using centerline analysis was significantly shorter than for assessment by MPR. - Conclusions - Centerline analysis provides the least variable and fast diameter measurements in TEVAR patients with the same accuracy as the current reference standard MPR. 
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