scholarly journals Detection of Traumatic Bone Marrow Lesions after Knee Trauma: Comparison of ADC Maps Derived from Diffusion-weighted Imaging with Standard Fat-saturated Proton Density–weighted Turbo Spin-Echo Sequences

Radiology ◽  
2017 ◽  
Vol 283 (2) ◽  
pp. 469-477 ◽  
Author(s):  
Alexis Klengel ◽  
Patrick Stumpp ◽  
Steffen Klengel ◽  
Ina Böttger ◽  
Nadja Rönisch ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Diffusion Weighted Imaging ◽  
Spin Echo ◽  
Proton Density ◽  
Turbo Spin Echo ◽  
Bone Marrow Lesions ◽  
Turbo Spin ◽  
Diffusion Weighted ◽  
Knee Trauma ◽  
Spin Echo Sequences

scholarly journals Comparison between turbo spin-echo and echo planar diffusion-weighted imaging of the female pelvis with 3T MRI

2021 ◽  
Vol 10 (2) ◽  
pp. 205846012199473
Author(s):  
Takeshi Yoshizako ◽  
Rika Yoshida ◽  
Hiroya Asou ◽  
Megumi Nakamura ◽  
Hajime Kitagaki
Keyword(s):  
Image Quality ◽  
Diffusion Weighted Imaging ◽  
Spin Echo ◽  
Turbo Spin Echo ◽  
Female Pelvis ◽  
3T Mri ◽  
Turbo Spin ◽  
Diffusion Weighted ◽  
Adc Values ◽  
Echo Planar

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.

Evaluation of pituitary structures and lesions with turbo spin-echo diffusion-weighted imaging

2019 ◽  
Vol 405 ◽  
pp. 116390
Author(s):  
Zaw Aung Khant ◽  
Minako Azuma ◽  
Yoshihito Kadota ◽  
Youhei Hattori ◽  
Hideo Takeshima ◽  
...  
Keyword(s):  
Diffusion Weighted Imaging ◽  
Spin Echo ◽  
Turbo Spin Echo ◽  
Turbo Spin ◽  
Diffusion Weighted
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