Clinical validation of an automated vessel-segmentation software of the extracranial-carotid arteries based on 3D-MRA: a prospective study

Journal of Neuroradiology. Journal De Neuroradiologie
R GuzmanA Barth

Abstract

To determine the accuracy of automated vessel-segmentation software for vessel-diameter measurements based on three-dimensional contrast-enhanced magnetic resonance angiography (3D-MRA). In 10 patients with high-grade carotid stenosis, automated measurements of both carotid arteries were obtained with 3D-MRA by two independent investigators and compared with manual measurements obtained by digital subtraction angiography (DSA) and 2D maximum-intensity projection (2D-MIP) based on MRA and duplex ultrasonography (US). In 42 patients undergoing carotid endarterectomy (CEA), intraoperative measurements (IOP) were compared with postoperative 3D-MRA and US. Mean interoperator variability was 8% for measurements by DSA and 11% by 2D-MIP, but there was no interoperator variability with the automated 3D-MRA analysis. Good correlations were found between DSA (standard of reference), manual 2D-MIP (rP=0.6) and automated 3D-MRA (rP=0.8). Excellent correlations were found between IOP, 3D-MRA (rP=0.93) and US (rP=0.83). Automated 3D-MRA-based vessel segmentation and quantification result in accurate measurements of extracerebral-vessel dimensions.

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Citations

Nov 25, 2011·Acta neurochirurgica·Michael ReinertUrs Fischer
Aug 31, 2004·AJR. American Journal of Roentgenology·J Kevin DeMarcoMatt A Bernstein
Dec 14, 2011·The International Journal of Cardiovascular Imaging·Avan SuinesiaputraRob J van der Geest
Apr 21, 2016·Translational Research : the Journal of Laboratory and Clinical Medicine·Ziad A HageFady T Charbel
Oct 16, 2019·The Journal of International Medical Research·Yanjun ZhouYong Luo

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