Correlation of diaphragm surgical findings with preoperative CT scans in ovarian cancer
1Department of Gynecology Oncology (A.P.,T.P-M.) Puerta de Hierro University Hospital Madrid. Autonoma University of Madrid (Spain)
2Division of Gynecologic Surgery (J.F.M., N.I.B., T.C-G., P.M.III, P.M.M.) Mayo Clinic, Arizona (USA)
3Division of Health Sciences Research (H.E.K.), Mayo Clinic Arizona, Scottsdale, Arizona (USA)
DOI: 10.31083/j.ejgo.2020.01.5032 Vol.41,Issue 1,February 2020 pp.75-79
Published: 15 February 2020
*Corresponding Author(s): A. Pereira E-mail: firstname.lastname@example.org
Objective: Correlation of diaphragm surgical findings in ovarian cancer patients with and without diaphragm metastases with pre-operative CT diaphragm findings to assess sensitivity and specificity for diaphragm disease. Material and Methods: A retrospective study of 120 ovarian cancer patients (60 with and 60 without diaphragm metastases at surgery), FIGO Stage IIIC or IV, undergoing cytoreductive surgery at Mayo Clinic, Arizona, between January 2000 and October 2014. All patients had preoperative imaging with CT scan of abdomen and pelvis including the lower lung fields. CTs were not reviewed retrospectively. Results: Among 60 patients with diaphragm metastases, preoperative CTs were positive for diaphragm disease in 17 patients, with a sensitivity rate of 28% (CI 95%: 0.17- 0.41). All 60 patients with no diaphragm metastases had negative CTs, with a specificity of 100% (CI 95%: 94.0%-100%). When analyzed by lesion size, CTs were negative in 66.7-80% of patients with diaphragm lesions ranging from 1-15 mm. There was a trend towards increased detection rate with increasing size of lesions, but it did not reach significance (p = 0.529). CT detection rate for single metastatic lesion was 18.2% (6/33) and for multiple lesions it was 25.9% (7/27). There was no difference for CT identification of right, left, or bilateral metastases (p = 0.399). The sensitivity and specificity of CT for pleural effusion was 100% (CI 95%: 72.2%-100%) and 88% (CI 95%: 76.2%- 94.4%), respectively. The area under the receiver operating characteristic (ROC) curve was 0.680 (CI 95%: 55.3%-72.2%) for CT detection of diaphragm metastases and 0.957 (CI 95%: 79.9%-95.3%) for pleural effusions. Conclusion: CT has a low sensitivity and a high specificity for the prediction of diaphragm metastases in ovarian cancer. The size, location, and number of diaphragm lesions do not significantly improve CT detection rate.
Ovarian cancer; Diaphragm; CT scan.
A. Pereira,J. F. Magrina,P. M. Magtibay,N. I. Bassiouni,T. Cuesta-Guardiola,P. Magtibay III,H. E. Kosiorek,T. Perez-Medina. Correlation of diaphragm surgical findings with preoperative CT scans in ovarian cancer. European Journal of Gynaecological Oncology. 2020. 41(1);75-79.
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