Abstract #1041
Comparison of steady-state and spin-echo DWI based on morphological assessment of breast lesions
Kristin L Granlund 1,2 , Debra Ikeda 1 , Jafi Lipson 1 , Jennifer Kao 1 , Jung Min Chang 3 , Brian Hargreaves 1 , and Bruce Daniel 1
1
Radiology, Stanford University, Stanford,
CA, United States,
2
Electrical
Engineering, Stanford University, Stanford, CA, United
States,
3
Radiology,
Seoul National University Hospital, Seoulq, Korea
The DESS sequence has been used to acquire
diffusion-weighted images, and this study evaluates DESS
images relative to EPI DWI images. Four radiologists
were surveyed about the image quality and BI-RADS scores
of images containing pathology-proven breast lesions.
The DESS sequence acquired sharper diffusion-weighted
breast images than EPI (p<0.001). ROC curves were
calculated from the BI-RADS scores, and the DESS
sequence had a larger AUC (0.74 for DESS, 0.68 for EPI)
and a tighter confidence interval. Better image quality
facilitates morphological assessment of lesion
malignancy.
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