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KMID : 0357520210440010025
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Journal of Radiological Science and Technology
2021 Volume.44 No. 1 p.25 ~ p.30
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The Utility of Single Shot Turbo Spin Echo Technique for Temporal Bone Diffusion Weighted Imaging
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Choi Kwan-Woo
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Abstract
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The purpose was to reduce the distortion of the image that occurs in the temporal bone area due to the very strong differences in susceptibility. A new SS-TSE technique was applied when examining the diffusion-weighted image of the temporal bone, where the auditory and facial nerves to be imaged were very thin and were adjacent to the cranial base including bone and air. This study was conducted from March 2020 to August of the same year, targeting 32 subjects who underwent the diffusion-weighted imaging of the temporal bone. To compare the distortion, existing SS-EPI technique and the new SS-TSE technique were both applied on the temporal bone area. As a result of the study, applying the new SS-TSE technique appeared to lower the distortion of images by 87.44, 46.13 and 42.35 % on the b-value 0, 800 and the ADC images, respectively. In conclusion, when using the new SS-TSE technique on the temporal bone DWI, distortion can be reduced, and thus images with high diagnostic value can be obtained.
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KEYWORD
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Temporal bone diffusion weighted image, Single-shot turbo spin echo, Single-shot echo planar imaging, Distortion, Susceptibility
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