The Study on Reduction of Image Distortion by using Single-Shot Turbo Spin Echo in Brain Stem Diffusion MRI
| Autor: | Soon-Yong Son, Beong-Gyu Yoo, Sa-Ra Na, Kwan-Woo Choi, Ho-Beom Lee |
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| Rok vydání: | 2016 |
| Předmět: |
Artifact (error)
Scanner Image quality business.industry Fast spin echo 030218 nuclear medicine & medical imaging Image (mathematics) Reduction (complexity) 03 medical and health sciences 0302 clinical medicine Nuclear magnetic resonance Distortion Medicine business Nuclear medicine 030217 neurology & neurosurgery Diffusion MRI |
| Zdroj: | Journal of the Korean Society of Radiology. 10:279-284 |
| ISSN: | 1976-0620 |
| DOI: | 10.7742/jksr.2016.10.4.279 |
| Popis: | Single-shot echo planar imaging(SS-EPI) is well established as high sensitivity for ischemic stroke. However, it is prone to susceptibility artifact in brain stem that diminish the image quality. single-shot turbo spin echo(SS-TSE) is a new DWI technique that can reduce susceptibility artifact. Thus, this research was conducted so as to reduce geometric distortion in brain stem by using single-shot turbo spin echo technique. Thirty patients without brain disease underwent diffusion MR on a 3T scanner with SS-EPI and SS-TSE. Obtained images with both sequences were analyzed for geometric distortion and error percentage as well. Image quality in terms of geometric distortion of SS-TSE were found to be significantly better than those for SS-EPI. And error percentage was considerably reduced for 2.4% of b0 image(from 11.1% to 8.7%), 1.2% of b1000 image(from 11.4% to 10.1%), respectively. In summary, diffusion MR using SS-TSE significantly reduce geometric distortion compared to SS-EPI in brain stem and may provide improved diagnostic performance. |
| Databáze: | OpenAIRE |
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