scholarly journals Artifact-robust diffusion-weighted whole-body imaging with background suppression at 3 T using improved turbo spin-echo diffusion-weighted imaging

2019 ◽  
Vol 92 (1094) ◽  
pp. 20180489 ◽  
Author(s):  
Makoto Suzuki ◽  
Satoru Morita ◽  
Yasuhiro Goto ◽  
Hitoshi Tadenuma ◽  
Yu Nishina ◽  
...  
2019 ◽  
Vol 14 (10) ◽  
pp. S800
Author(s):  
K. Suemori ◽  
M. Kataoka ◽  
D. Okutani ◽  
T. Fujita ◽  
I. Togami ◽  
...  

2021 ◽  
Vol 10 (2) ◽  
pp. 205846012199473
Author(s):  
Takeshi Yoshizako ◽  
Rika Yoshida ◽  
Hiroya Asou ◽  
Megumi Nakamura ◽  
Hajime Kitagaki

Background Echo-planar imaging (EPI)-diffusion-weighted imaging (DWI) may take unclear image affected by susceptibility, geometric distortions and chemical shift artifacts. Purpose To compare the image quality and usefulness of EPI-DWI and turbo spin echo (TSE)-DWI in female patients who required imaging of the pelvis. Material and Methods All 57 patients were examined with a 3.0-T MR scanner. Both TSE- and EPI-DWI were performed with b values of 0 and 1000 s/mm2. We compared geometric distortion, the contrast ratio (CR) of the myometrium to the muscle and the apparent diffusion coefficient (ADC) values for the myometrium and lesion. Two radiologists scored the TSE- and EPI-DWI of each patient for qualitative evaluation. Results The mean percent distortion was significantly smaller with TSE- than EPI-DWI ( p = 0.00). The CR was significantly higher with TSE- than EPI-DWI ( p = 0.003). There was a significant difference in the ADC value for the uterus and lesions between the EPI- and TSE-DWI ( p < 0.05). Finally, the ADC values of cancer were significantly different from those for the uterus and benign with both the two sequences ( p < 0.05). The scores for ghosting artifacts were higher with TSE- than EPI-DWI ( p = 0.019). But there were no significant differences between TSE- and EPI-DWI with regard to image contrast and overall image quality. Conclusion TSE-DWI on the female pelvis by 3T MRI produces less distortion and higher CR than EPI-DWI, but there is no difference in contrast and image quality.


2019 ◽  
Vol 405 ◽  
pp. 116390
Author(s):  
Zaw Aung Khant ◽  
Minako Azuma ◽  
Yoshihito Kadota ◽  
Youhei Hattori ◽  
Hideo Takeshima ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document