Medizinische Universität Graz - Research portal
Selected Publication:
SHR Neuro Cancer Cardio Lipid Metab Microb
Guzman, R; Lovblad, KO; Altrichter, S; Remonda, L; de Koning, P; Andres, RH; El-Koussy, M; Kelly, ME; Reiber, JH; Schroth, G; Oswald, H; Barth, A.
Clinical validation of an automated vessel-segmentation software of the extracranial-carotid arteries based on 3D-MRA: a prospective study.
J Neuroradiol. 2008; 35(5): 278-285.
Doi: 10.1016/j.neurad.2008.07.001
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- Co-authors Med Uni Graz
- Barth Alain
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- Abstract:
- OBJECTIVES: To determine the accuracy of automated vessel-segmentation software for vessel-diameter measurements based on three-dimensional contrast-enhanced magnetic resonance angiography (3D-MRA). METHOD: 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. RESULTS: 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). CONCLUSION: Automated 3D-MRA-based vessel segmentation and quantification result in accurate measurements of extracerebral-vessel dimensions.
- Find related publications in this database (using NLM MeSH Indexing)
- Aged -
- Analysis of Variance -
- Angiography, Digital Subtraction -
- Carotid Stenosis - diagnosis
- Contrast Media - diagnosis
- Endarterectomy, Carotid - diagnosis
- Female - diagnosis
- Humans - diagnosis
- Image Interpretation, Computer-Assisted - methods
- Imaging, Three-Dimensional - methods
- Magnetic Resonance Angiography - methods
- Male - methods
- Prospective Studies - methods
- Retrospective Studies - methods
- Software Validation - methods
- Statistics, Nonparametric - methods
- Treatment Outcome - methods
- Ultrasonography, Doppler, Duplex - methods
- Find related publications in this database (Keywords)
- Magnetic-resonance angiography
- Vessel segmentation
- Carotid artery
- Carotid endarterectomy