3D black-blood 3T-MRI for the diagnosis of abdominal large vessel vasculitis

Maurus, Stefan; Sommer, Nora N.; Kooijman, Hendrik; Coppenrath, Eva; Witt, Matthias; Schulze-Koops, Hendrik; Czihal, Michael; Hoffmann, Ulrich; Saam, Tobias und Treitl, Karla M. (2020): 3D black-blood 3T-MRI for the diagnosis of abdominal large vessel vasculitis. In: European Radiology, Bd. 30, Nr. 2: S. 1041-1044

Abstract

Objectives: To assess the value of a T1-3D black-blood turbo spin echo (TSE) sequence for the diagnosis of abdominal large vessel vasculitis (LVV). Materials and methods: The study included 20 patients with abdominal LVV and 17 controls, who underwent a 3T-MRI scan using a modified T1-3D volumetric isotropic TSE acquisition and a segmented T1-3D turbo field echo sequence (T1-mVISTA/T1-eTHRIVE). Two radiologists independently analyzed the aorta for concentric contrast enhancement, concentric wall thickening, image quality, and flow artifact intensity (CCE/CWT/IQ/FAI;4-point scales). The mean aortic wall thickness (MAWT) in post-contrast T1-mVISTA was compared between patients and controls. Results: IQ of T1-mVISTA was rated good to excellent in 91.5% of 282 evaluated vessel segments with no or minor FAI present in 85.5%. The inter-observer reproducibility for the identification of CCE/CWT on T1-mVISTA was 0.92 and 0.93 (p < 0.001). The distribution of segmental inflammation in T1-mVISTA significantly correlated with T1-eTHRIVE (CCE, kappa = 0.768;CWT, kappa = 0.715;p < 0.001), resulting in a sensitivity, specificity, and positive predictive value of 100%, 81.3%, and 83.3%. The MAWT significantly differed between patients and controls (3.29 +/- 0.81 vs. 2.24 +/- 0.45 mm;p < 0.001). Conclusions: T1-mVISTA enables the evaluation of the MAWT and allows the detection of abdominal LVV.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 0938-7994
• Sprache: Englisch