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Updated: Jun 14, 2026
Quantitation of Intra-peritoneal Ovarian Cancer Metastasis
Published on: July 18, 2016
Region-based diagnostic performance of multidetector CT for detecting peritoneal seeding in ovarian cancer patients
Hyuck Jae Choi1, Myong Cheol Lim, Jaeman Bae
1Department of Radiology, Asan Medical Center, University of Ulsan, Ulsan, Korea.
Purpose:
To determine the accuracy of multi-detector CT (MDCT) compared with the surgical findings, such as peritoneal seeding and metastatic lymph nodes, in ovarian cancer patients.
Methods:
Fifty-seven FIGO stage IA-IV ovarian cancer patients, who underwent MDCT before primary surgery, were included in this study. Two radiologists evaluated the following imaging findings in consensus: the presence of nodular, plaque-like or infiltrative soft-tissue lesions in peritoneal fat or on the serosal surface; presence of ascites; parietal peritoneal thickening or enhancement; and small bowel wall thickening or distortion. We also evaluated the presence of lymph node metastases. To allow region-specific comparisons, the peritoneal cavity was divided into 13 regions and retroperitoneal lymph nodes were divided into 3 regions. Descriptive statistical data were thus obtained.
Results:
The MDCT sensitivity, specificity, positive predictive values, and negative predictive values were 45, 72, 46, and 72%, respectively, for detecting peritoneal seeding and 21, 90, 52, and 69%, respectively, for detecting lymph node metastasis.
Conclusions:
MDCT is moderately accurate for detecting peritoneal metastasis and lymph node metastasis in ovarian cancer patients.
