Performance of PROPELLER technique in reducing susceptibility artifacts in diffusion-weighted MR images / 第二军医大学学报
Academic Journal of Second Military Medical University
;
(12): 1383-1385, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-839611
ABSTRACT
Objective To evaluate the performance of PROPELLER diffusion-weighted magnetic resonance image (DWI) in reducing image distortion caused by susceptibility artifacts. Methods Forty volunteers with metal denture were enrolled in the present study; their PROPELLER and echo-planar DWI were taken for the skull base. The quality of each image was evaluated by using a four-point scoring system. Qualitative comparison of image distortion between PROPELLER DWI and echo-planar DWI was performed by ROC analysis. Results The area under the ROC curve was 0.979 (P<0.01), indicating a significant difference in the image distortion between PROPELLER DWI and echo-planar DWI. PROPELLER technique could greatly reduce the image distortion associated with magnetic susceptibility artifacts. Conclusion PROPELLER technique can greatly reduce metal denture-induced susceptibility-related image distortion, and ROC curve can be used for quantitative analysis of subjective assessment of image quality.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Prognostic study
/
Qualitative research
Language:
Chinese
Journal:
Academic Journal of Second Military Medical University
Year:
2012
Type:
Article
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