3D black-blood 3T-MRI for the diagnosis of abdominal large vessel vasculitis.
Eur Radiol
; 30(2): 1041-1044, 2020 Feb.
Article
em En
| MEDLINE
| ID: mdl-31529250
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 ANDMETHODS:
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, κ = 0.768; CWT, κ = 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. KEY POINTS ⢠3D T1w-mVISTA accurately depicted the large abdominal vessels. ⢠3D T1w-mVISTA enables accurate measurements of the abdominal aortic wall thickness. ⢠3D T1w-mVISTA is useful for the detection of abdominal LVV.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Vasculite
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Imageamento por Ressonância Magnética
Tipo de estudo:
Diagnostic_studies
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Prognostic_studies
Limite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article