Comparison of 7 T and 3 T vessel wall MRI for the evaluation of intracranial aneurysm wall.
Comparison of 7 T and 3 T vessel wall MRI for the evaluation of intracranial aneurysm wall.
复制标题
7T与3T血管壁MRI评估颅内动脉瘤壁的比较
DOI:
10.1007/s00330-021-08331-9
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发表时间:
2022-04
影响因子:
5.9
通讯作者:
中科院分区:
文献类型:
--
作者:
To compare the visibility of intracranial aneurysm wall and thickness quantification between 7 and 3 T vessel wall imaging and evaluate the association between aneurysm size and wall thickness. Twenty-nine patients with 29 unruptured intracranial aneurysms were prospectively recruited for 3D T1-weighted vessel wall MRI at both 3 T and 7 T with 0.53 mm (3 T) and 0.4 mm (7 T) isotropic resolution, respectively. Two neuroradiologists independently evaluated wall visibility (0–5 Likert scale), quantified the apparent wall thickness (AWT) using a semi-automated full-width-half-maximum method, calculated wall sharpness, and measured the wall-to-lumen contrast ratio (CRwall/lumen). Twenty-four patients with 24 aneurysms were included in this study. 7 T achieved significantly better aneurysm wall visibility than 3 T (3.6 ± 1.1 vs 2.7 ± 0.8, p = 0.003). AWT measured on 3 T and 7 T had a good correlation (averaged r = 0.63 ± 0.19). However, AWT on 3 T was 15% thicker than that on 7 T (0.52 ± 0.07 mm vs 0.45 ± 0.05 mm, p < 0.001). Wall sharpness on 7 T was 57% higher than that on 3 T (1.95 ± 0.32 mm−1 vs 1.24 ± 0.15 mm−1, p < 0.001). CRwall/lumen on 3 T and 7 T was comparable (p = 0.424). AWT on 7 T was positively correlated with aneurysm size (saccular: r = 0.58, q = 0.046; fusiform: r = 0.67, q = 0.049). 7 T provides better visualization of intracranial aneurysm wall with higher sharpness than 3 T. 3 T overestimates the wall thickness relative to 7 T. Aneurysm wall thickness is positively correlated with aneurysm size. 7 T MRI is a promising tool to evaluate aneurysm wall in vivo.
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DOI:
10.3174/ajnr.a4734
发表时间:
2016-07
期刊:
AJNR. American journal of neuroradiology
影响因子:
--
作者:
Blankena R;Kleinloog R;Verweij BH;van Ooij P;Ten Haken B;Luijten PR;Rinkel GJ;Zwanenburg JJ
通讯作者:
Zwanenburg JJ
影响因子:
4.1
作者:
Kadasi, Laith M.;Dent, Walter C.;Malek, Adel M.
通讯作者:
Malek, Adel M.
影响因子:
4.4
作者:
Park, Ji Kang;Lee, Chang Sub;Park, Jung Cheol
通讯作者:
Park, Jung Cheol
影响因子:
8.3
作者:
Fu Q;Wang Y;Zhang Y;Zhang Y;Guo X;Xu H;Yao Z;Wang M;Levitt MR;Mossa-Basha M;Zhu J;Cheng J;Guan S;Zhu C
通讯作者:
Zhu C
影响因子:
4.4
作者:
Qiao, Ye;Steinman, David A.;Wasserman, Bruce A.
通讯作者:
Wasserman, Bruce A.