Neue "Zeiten" in der MRT-Wirbelsäulendiagnostik: Compressed Sensing und Turbo spin echo prescans zur beschleunigten Bildgebung

2020 ◽  
Author(s):  
G Bratke ◽  
C Kabbasch ◽  
D Maintz ◽  
R Rau ◽  
S Haneder ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Spin Echo ◽  
Turbo Spin Echo ◽  
Turbo Spin

scholarly journals Using the Compressed Sensing Technique for Lumbar Vertebrae Imaging: Comparison with Conventional Parallel Imaging

2021 ◽  
Vol 17 ◽  
Author(s):  
Tianyang Gao ◽  
Zhao Lu ◽  
Fengzhe Wang ◽  
Heng Zhao ◽  
Jiazheng Wang ◽  
...  
Keyword(s):  
Image Quality ◽  
Compressed Sensing ◽  
Nerve Root ◽  
Predictive Value ◽  
Spin Echo ◽  
Lumbar Vertebrae ◽  
Foraminal Stenosis ◽  
Nerve Root Compression ◽  
Turbo Spin Echo ◽  
Turbo Spin

Objective: To compare conventional sensitivity encoding turbo spin-echo (SENSE-TSE) with compressed sensing plus SENSE turbo spin-echo (CS-TSE) in lumbar vertebrae magnetic resonance imaging (MRI). Methods: This retrospective study of lumbar vertebrae MRI included 600 patients; 300 patients received SENSE-TSE and 300 patients received CS-TSE. The SENSE acceleration factor was 1.4 for T1WI, 1.7 for T2WI, and 1.7 for PDWI. The CS total acceleration factor was 2.4, 3.6, 4.0, and 4.0 for T1WI, T2WI, PDWI sagittal, and T2WI transverse, respectively. The image quality of each MRI sequence was evaluated objectively by the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) and subjectively on a five-point scale. Two radiologists independently reviewed the MRI sequences of the 300 patients receiving CS-TSE, and their diagnostic consistency was evaluated. The degree of intervertebral foraminal stenosis and nerve root compression was assessed using the T1WI sagittal and T2WI transverse images. Results: The scan time was reduced from 7 min 28 s to 4 min 26 s with CSTSE. The median score of nerve root image quality was 5 (p > 0.05). The diagnostic consistency using CS-TSE images between the two radiologists was high for diagnosing lumbar diseases (κ > 0.75) and for evaluating the degree of lumbar foraminal stenosis and nerve root compression (κ = 0.882). No differences between SENSE-TSE and CS-TSE were observed for sensitivity, specificity, positive predictive value, or negative predictive value. Conclusion: CS-TSE has potential for diagnosing lumbar vertebrae and disc disorders.

Accelerating anatomical 2D turbo spin echo imaging of the ankle using compressed sensing

2019 ◽  
Vol 118 ◽  
pp. 277-284 ◽  
Author(s):  
Alexandra S. Gersing ◽  
Jannis Bodden ◽  
Jan Neumann ◽  
Maximillian N. Diefenbach ◽  
Sophia Kronthaler ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Spin Echo ◽  
Turbo Spin Echo ◽  
Turbo Spin

Geometrically undistorted MRI in the presence of field inhomogeneities using compressed sensing accelerated broadband 3D phase encoded turbo spin-echo imaging

2014 ◽  
Vol 60 (2) ◽  
pp. 615-631 ◽  
Author(s):  
Jetse S van Gorp ◽  
Chris J G Bakker ◽  
Job G Bouwman ◽  
Jouke Smink ◽  
Frank Zijlstra ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Spin Echo ◽  
Turbo Spin Echo ◽  
Turbo Spin

Contrast-Enhanced Turbo Spin-Echo(TSE) T1-weighted Imaging: Improved Contrast of Enhancing Lesions

1997 ◽  
Vol 37 (3) ◽  
pp. 379
Author(s):  
Sung Wook Choi ◽  
Ghi Jai Lee ◽  
Jae Chan Shim ◽  
Young Ju Lee ◽  
Se Hyung Jeong ◽  
...  
Keyword(s):  
Spin Echo ◽  
Turbo Spin Echo ◽  
Turbo Spin ◽  
Contrast Enhanced
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