Abstract #1556
AN INTERACTIVE COMPUTER-AIDED DIAGNOSIS SYSTEM FOR DETECTING METASTATIC LYMPH NODE IN FEMALE PELVIS BASED ON DIFFUSION WEIGHTED IMAGING
Tiing Yee Siow 1 , Yu-Chun Lin 1 , and Gigin Lin 1
1
Department of Medical Imaging and
Intervention, Chang Gung Memorial Hospital at Linkou,
College of Medicine, Chang Gung University, Taoyuan,
Taiwan
Manual depiction of lymph nodes on DWI is a
time-consuming process, biased in inter- and
intra-observer reproducibility exists in both detecting
lymph nodes in DWI and measuring their size and apparent
diffusion coefficient (ADC) values. We aim to develop an
interactive system of computer-aided detection and
diagnosis (CAD) for lymph node labeling on DWI. With
optimal empirical parameters, the CAD showed a
sensitivity of 85.0% with a positive predictive rate of
76.9%. The features render CAD a prospective tool for
differentiating malignant and benign lymph node on DWI.
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