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- Title
Evaluation of the contribution of individual arteries to the cerebral blood supply in patients with Moyamoya angiopathy: comparison of vessel-encoded arterial spin labeling and digital subtraction angiography.
- Authors
Zerweck, Leonie; Pohmann, Rolf; Klose, Uwe; Martirosian, Petros; Haas, Patrick; Ernemann, Ulrike; Khan, Nadia; Roder, Constantin; Hauser, Till-Karsten; Hennersdorf, Florian
- Abstract
Purpose: Vessel-encoded arterial spin labeling (VE-ASL) is able to provide noninvasive information about the contribution of individual arteries to the cerebral perfusion. The aim of this study was to compare VE-ASL to the diagnostic standard digital subtraction angiography (DSA) with respect to its ability to visualize vascular territories. Methods: In total, 20 VE-ASL and DSA data sets of 17 patients with Moyamoya angiopathy with and without revascularization surgery were retrospectively analyzed. Two neuroradiologists independently assessed the agreement between VE-ASL and DSA using a 4-point Likert scale (no- very high agreement). Additionally, grading of the vascular supply of subterritories (A1-A2, M1-M6) on the VE-ASL images and angiograms was performed. The intermodal agreement was calculated for all subterritories in total and for the subdivision into without and after revascularization (direct or indirect bypass). Results: There was a very high agreement between the VE-ASL and the DSA data sets (median = 1, modus = 1) with a substantial inter-rater agreement (kw = 0.762 (95% CI 0.561–0.963)). The inter-modality agreement between VE-ASL and DSA in vascular subterritories was almost perfect for all subterritories (k = 0.899 (0.865–0.945)), in the subgroup of direct revascularized subterritories (k = 0.827 (0.738–0.915)), in the subgroup of indirect revascularized subterritories (k = 0.843 (0.683–1.003)), and in the subgroup of never revascularized subterritories (k = 0.958 (0.899–1.017)). Conclusion: Vessel-encoded ASL seems to be a promising non-invasive method to depict the contributions of individual arteries to the cerebral perfusion before and after revascularization surgery.
- Subjects
SCALE analysis (Psychology); MAGNETIC resonance imaging; DIGITAL subtraction angiography; RETROSPECTIVE studies; DESCRIPTIVE statistics; MOYAMOYA disease; CEREBRAL revascularization; CEREBRAL arteries; MEDICAL records; ACQUISITION of data; CEREBRAL circulation; PERFUSION; NEURORADIOLOGY; COMPARATIVE studies; CONFIDENCE intervals; INTER-observer reliability
- Publication
Neuroradiology, 2024, Vol 66, Issue 7, p1131
- ISSN
0028-3940
- Publication type
Article
- DOI
10.1007/s00234-024-03338-7