scholarly journals Whole-brain intracranial vessel wall imaging at 3 Tesla using cerebrospinal fluid-attenuated T1-weighted 3D turbo spin echo

2016 ◽  
Vol 77 (3) ◽  
pp. 1142-1150 ◽  
Author(s):  
Zhaoyang Fan ◽  
Qi Yang ◽  
Zixin Deng ◽  
Yuxia Li ◽  
Xiaoming Bi ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Vessel Wall ◽  
Spin Echo ◽  
Vessel Wall Imaging ◽  
3 Tesla ◽  
Turbo Spin Echo ◽  
Whole Brain ◽  
Turbo Spin ◽  
Intracranial Vessel ◽  
Wall Imaging

Neural network enhanced 3D turbo spin echo for MR intracranial vessel wall imaging

2021 ◽  
Vol 78 ◽  
pp. 7-17
Author(s):  
Zechen Zhou ◽  
Shuo Chen ◽  
Niranjan Balu ◽  
Baocheng Chu ◽  
Xihai Zhao ◽  
...  
Keyword(s):  
Neural Network ◽  
Vessel Wall ◽  
Spin Echo ◽  
Vessel Wall Imaging ◽  
Turbo Spin Echo ◽  
Turbo Spin ◽  
Intracranial Vessel ◽  
Wall Imaging

Motion‐compensated 3D turbo spin‐echo for more robust MR intracranial vessel wall imaging

2021 ◽  
Author(s):  
Zhehao Hu ◽  
Andre Kouwe ◽  
Fei Han ◽  
Jiayu Xiao ◽  
Junzhou Chen ◽  
...  
Keyword(s):  
Vessel Wall ◽  
Spin Echo ◽  
Vessel Wall Imaging ◽  
Turbo Spin Echo ◽  
Turbo Spin ◽  
Intracranial Vessel ◽  
Wall Imaging

scholarly journals Reproducibility Between Three-Dimensional Turbo Spin-Echo and Two-Dimensional Dual Inversion Recovery Turbo Spin-Echo for Coronary Vessel Wall Imaging in Kawasaki Disease

2021 ◽  
Author(s):  
Koji Matsumoto ◽  
Hajime Yokota ◽  
Takafumi Yoda ◽  
Ryota Ebata ◽  
Hiroki Mukai ◽  
...  
Keyword(s):  
Vessel Wall ◽  
Spin Echo ◽  
Three Dimensional ◽  
Vessel Wall Imaging ◽  
Coronary Vessel ◽  
Turbo Spin Echo ◽  
Cross Sectional ◽  
Coronary Vessel Wall ◽  
Turbo Spin ◽  
Wall Imaging

Abstract Background: Magnetic resonance vessel wall imaging is desirable for evaluating Kawasaki disease (KD)-associated coronary arterial lesions. Purpose: To evaluate reproducibility of three-dimensional turbo spin-echo (3D-TSE) and two-dimensional dual inversion-recovery turbo spin-echo (2D-DIR-TSE) for coronary vessel wall imaging in KD.Methods: Ten patients were prospectively enrolled. Coronary vessel wall imaging with axial-slice orientation 3D-TSE and 2D-DIR-TSE were acquired for cross-sectional images in aneurysmal and normal regions. Lumen area (LA), wall area (WA), and normalized wall index (NWI) of cross-sectional images were measured in both regions. Reproducibility between 3D-TSE and 2D-DIR-TSE was evaluated via intraclass correlation coefficients (ICCs) and Bland-Altman plots.Results: 48 points (aneurysmal, 27; normal, 21) were evaluated. There were high ICCs between 3D-TSE and 2D-DIR-TSE in LA (0.95) and WA (0.95). In aneurysmal regions, 95% limits of agreement were LA, WA, and NWI of -29.9–30.4 mm2, -18.8–15.0 mm2, and -0.22–0.20, respectively. In normal regions, the 95% limits of agreement were LA, WA, and NWI of -4.44–4.38 mm2, -3.51–4.30 mm2, and -0.14–0.16, respectively. No fixed and proportional biases between 3D-TSE and 2D-DIR-TSE images in aneurysmal and normal regions were noted.Conclusions: 3D-TSE was reproducible with conventional 2D-DIR-TSE for coronary vessel wall assessment on KD.

scholarly journals T2-Weighted Whole-Brain Intracranial Vessel Wall Imaging at 3 Tesla With Cerebrospinal Fluid Suppression

2021 ◽  
Vol 15 ◽  
Author(s):  
Lei Zhang ◽  
Yanjie Zhu ◽  
Yulong Qi ◽  
Liwen Wan ◽  
Lijie Ren ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Vessel Wall ◽  
Vessel Wall Imaging ◽  
Inversion Recovery ◽  
Whole Brain ◽  
Intracranial Vessel ◽  
Spin Echo Sequence ◽  
Weighted Sequences ◽  
Preparation Module ◽  
Wall Imaging

BackgroundT2-weighted (T2w) intracranial vessel wall imaging (IVWI) provides good contrast to differentiate intracranial vasculopathies and discriminate various important plaque components. However, the strong cerebrospinal fluid (CSF) signal in T2w images interferes with depicting the intracranial vessel wall. In this study, we propose a T2-prepared sequence for whole-brain IVWI at 3T with CSF suppression.MethodsA preparation module that combines T2 preparation and inversion recovery (T2IR) was used to suppress the CSF signal and was incorporated into the commercial three-dimensional (3D) turbo spin echo sequence-Sampling Perfection with Application optimized Contrast using different flip angle Evolution (SPACE). This new technique (hereafter called T2IR-SPACE) was evaluated on nine healthy volunteers and compared with two other commonly used 3D T2-weighted sequences: T2w-SPACE and FLAIR-SPACE (FLAIR: fluid-attenuated inversion recovery). The signal-to-noise ratios (SNRs) of the vessel wall (VW) and CSF and contrast-to-noise ratios (CNRs) between them were measured and compared among these three T2-weighted sequences. Subjective wall visualization of the three T2-weighted sequences was scored blindly and independently by two radiologists using a four-point scale followed by inter-rater reproducibility analysis. A pilot study of four stroke patients was performed to preliminarily evaluate the diagnostic value of this new sequence, which was compared with two conventional T2-weighted sequences.ResultsT2IR-SPACE had the highest CNR (11.01 ± 6.75) compared with FLAIR-SPACE (4.49 ± 3.15; p < 0.001) and T2w-SPACE (−56.16 ± 18.58; p < 0.001). The subjective wall visualization score of T2IR-SPACE was higher than those of FLAIR-SPACE and T2w-SPACE (T2IR-SPACE: 2.35 ± 0.59; FLAIR-SPACE: 0.52 ± 0.54; T2w-SPACE: 1.67 ± 0.58); the two radiologists’ scores showed excellent agreement (ICC = 0.883).ConclusionThe T2IR preparation module markedly suppressed the CSF signal without much SNR loss of the other tissues (i.e., vessel wall, white matter, and gray matter) compared with the IR pulse. Our results suggest that T2IR-SPACE is a potential alternative T2-weighted sequence for assessing intracranial vascular diseases.

Multi-sequence whole-brain intracranial vessel wall imaging at 7.0 tesla

2013 ◽  
Vol 23 (11) ◽  
pp. 2996-3004 ◽  
Author(s):  
Anja G. van der Kolk ◽  
Jeroen Hendrikse ◽  
Manon Brundel ◽  
Geert J. Biessels ◽  
Ewoud J. Smit ◽  
...  
Keyword(s):  
Vessel Wall ◽  
Vessel Wall Imaging ◽  
Whole Brain ◽  
Intracranial Vessel ◽  
Wall Imaging
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