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• Technical Article •
Image quality assessment on MR images of the prostate acquired in different diffusion weighted sequences
DAN Hanli  TAN Yuchuan  YANG Lu  ZHANG Yipeng  TAN Yong  LIN Meng  WANG Lei  ZHANG Jiuquan 

Cite this article as: Dan HL, Tan YC, Yang L, et al. Image quality assessment on MR images of the prostate acquired in different diffusion weighted sequences[J]. Chin J Magn Reson Imaging, 2021, 12(3): 54-58. DOI:10.12015/issn.1674-8034.2021.03.012.


[Abstract] Objective We aimed to compare the image quality among conventional diffusion-weighted imaging (DWI), ZOOMit DWI, and RESOLVE DWI sequences for prostate imaging and to optimize the strategy to obtain high-quality diffusion MRI. Materials andMethods We retrospectively collected patients scanned with conventional DWI, ZOOMit DWI, and RESOLVE DWI imaging on the same scanner from April to october 2020, sixty patients were enrolled. The clarity, distortion, and artifacts of the images acquired in the three sequences were subjectively evaluated by two experience d radiologists. The outline of the prostate was manually delineated from the images by two experienced radiologists, and the SNR and CNR of the images were calculated. Differences in the subjective scores and objective parameters among the three sequences were compared.Results The subjective scores of clarity, distortion, and artifacts have significantly difference among the three sequences (P＜0.05). ZOOMit DWI had the highest clarity and the lowest distortion and artifacts. The the SNR (b=50) and SNR (b=1400) have significantly difference among the three DWI techniques (P＜0.05). The CNR (b=50) of the three DWI sequences have no difference (P＞0.05). The right-left diameter and the ratio of the anterior-posterior diameter/right-left diameter have significantly difference among the three DWI techniques (P＜0.05).Conclusions ZOOMit DWI sequence images were of higher quality. Therefore, ZOOMit DWI for prostate MRI is preferable for a better diagnosis.
[Keywords] prostate；magnetic resonance imaging；diffusion-weighted imaging；distortion；signal-to-noise ratio

DAN Hanli   TAN Yuchuan   YANG Lu   ZHANG Yipeng   TAN Yong   LIN Meng   WANG Lei   ZHANG Jiuquan*  

Department of Radiology, Chongqing University Cancer Hospital, Chongqing 400030, China

Zhang JQ, E-mail: zhangjq_radiol@foxmail.com

Conflicts of interest   None.

ACKNOWLEDGMENTS  This study has received funds from the National Natural Science Foundation of China No. 82071883 The Combination Projects of Medicine and Engineering of the Fundamental Research Funds for the Central Universities in 2019 No. 2019CDYGYB008
Received  2020-12-22
Accepted  2021-01-21
DOI: 10.12015/issn.1674-8034.2021.03.012
Cite this article as: Dan HL, Tan YC, Yang L, et al. Image quality assessment on MR images of the prostate acquired in different diffusion weighted sequences[J]. Chin J Magn Reson Imaging, 2021, 12(3): 54-58. DOI:10.12015/issn.1674-8034.2021.03.012.

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