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Published in: Tumor Biology 7/2015

01-07-2015 | Research Article

The clinical value of dynamic contrast-enhanced MRI in differential diagnosis of malignant and benign ovarian lesions

Authors: Xian Li, Jun-Li Hu, Lai-Min Zhu, Xin-Hai Sun, Hua-Qiang Sheng, Ning Zhai, Xi-Bin Hu, Chu-Ran Sun, Bin Zhao

Published in: Tumor Biology | Issue 7/2015

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Abstract

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is widely used in preoperative diagnosis of various tumors. We investigated the clinical value of DCE-MRI in differential diagnosis of malignant and benign ovarian lesions. The study involved 48 subjects with surgical pathology-confirmed ovarian tumors with solid components. Early dynamic phase enhancement performances of the ovarian lesions in patients were assessed, including the enhancement pattern, time-signal intensity curve (TIC), signal intensity rate at the initial 60 s (SI60), time to peak within 200 s (TTP200), and slope ratio. There were significant differences in enhancement patterns between benign and malignant ovarian tumors (P < 0.05). A total of 30 malignant tumors (30/31) displayed type I TIC, 8 benign tumors (8/13) showed type III TIC, and significant differences were found in TIC type between malignant and benign ovarian lesions (P < 0.01). Benign ovarian tumors showed lower SI60 (%) and slope ratio, as well as significantly prolonged TTP20, compared to malignant ovarian tumors (all P < 0.01). The microvessel count (MVC) of malignant tumors was significantly higher than that of benign tumors (P < 0.05). Receiver operating characteristic (ROC) curve analyses revealed that DCE-MRI provided an optimal diagnostic performance with threshold values of SI60 at 83.40 %, TTP200 at 77.65 s, and slope ratio at 4.12. These findings revealed that DCE-MRI provides critical information required for differential diagnosis of malignant and benign ovarian lesions.
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Metadata
Title
The clinical value of dynamic contrast-enhanced MRI in differential diagnosis of malignant and benign ovarian lesions
Authors
Xian Li
Jun-Li Hu
Lai-Min Zhu
Xin-Hai Sun
Hua-Qiang Sheng
Ning Zhai
Xi-Bin Hu
Chu-Ran Sun
Bin Zhao
Publication date
01-07-2015
Publisher
Springer Netherlands
Published in
Tumor Biology / Issue 7/2015
Print ISSN: 1010-4283
Electronic ISSN: 1423-0380
DOI
https://doi.org/10.1007/s13277-015-3219-3

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