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已发表论文
早期子宫内膜癌术前分期的动态对比增强磁共振成像与 T2 加权像的比较
Authors Zheng L, Zheng S, Yuan X, Wang X, Zhang Z, Zhang G
Published Date July 2015 Volume 2015:8 Pages 1743—1751
DOI http://dx.doi.org/10.2147/OTT.S86519
Received 13 April 2015, Accepted 19 May 2015, Published 17 July 2015
Purpose: This study aimed to compare dynamic contrast-enhanced magnetic
resonance imaging (DCE-MRI) with T2-weighted imaging (T2WI) for the
preoperative staging of early endometrial carcinoma.
Methods: This retrospective study included 22 subjects with early endometrial carcinoma who underwent 3.0 T MRI examination prior to hysterectomy. DCE-MRI and T2WI were evaluated for the preoperative staging of endometrial carcinoma. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of DCE-MRI and T2WI were assessed and compared using the revised International Federation of Gynecology and Obstetrics surgical staging guidelines (2009) as the reference standard.
Results: Out of the 22 cases of endometrial carcinoma, the use of the reference standard method led to the staging of 14 as IA and eight as IB. The sensitivity, specificity, PPV, NPV, and accuracy of DCE-MRI for preoperative staging were 100% (95% confidence interval: 0.73–1.0), 62.5% (95% CI: 0.26–0.90), 82.4% (95% CI: 0.56–0.95), 100% (95% CI: 0.46–1.0), and 86.4%, respectively, and these values were 85.7% (95% CI: 0.56–0.97), 75% (95% CI: 0.36–0.96), 85.7% (95% CI: 0.56–0.97), 75% (95% CI: 0.36–0.96), and 81.8%, respectively, for T2WI. Thus, the sensitivity and accuracy of DCE-MRI were greater than those of T2WI for preoperative endometrial carcinoma staging.
Conclusion: DCE-MRI was more sensitive but less specific than T2WI for the preoperative staging of early endometrial carcinoma. DCE-MRI may serve as a useful and reliable tool for the preoperative assessment of endometrial carcinoma.
Keywords: endometrial carcinoma, dynamic contrast-enhanced magnetic resonance imaging, T2-weighted imaging, preoperative staging
Methods: This retrospective study included 22 subjects with early endometrial carcinoma who underwent 3.0 T MRI examination prior to hysterectomy. DCE-MRI and T2WI were evaluated for the preoperative staging of endometrial carcinoma. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of DCE-MRI and T2WI were assessed and compared using the revised International Federation of Gynecology and Obstetrics surgical staging guidelines (2009) as the reference standard.
Results: Out of the 22 cases of endometrial carcinoma, the use of the reference standard method led to the staging of 14 as IA and eight as IB. The sensitivity, specificity, PPV, NPV, and accuracy of DCE-MRI for preoperative staging were 100% (95% confidence interval: 0.73–1.0), 62.5% (95% CI: 0.26–0.90), 82.4% (95% CI: 0.56–0.95), 100% (95% CI: 0.46–1.0), and 86.4%, respectively, and these values were 85.7% (95% CI: 0.56–0.97), 75% (95% CI: 0.36–0.96), 85.7% (95% CI: 0.56–0.97), 75% (95% CI: 0.36–0.96), and 81.8%, respectively, for T2WI. Thus, the sensitivity and accuracy of DCE-MRI were greater than those of T2WI for preoperative endometrial carcinoma staging.
Conclusion: DCE-MRI was more sensitive but less specific than T2WI for the preoperative staging of early endometrial carcinoma. DCE-MRI may serve as a useful and reliable tool for the preoperative assessment of endometrial carcinoma.
Keywords: endometrial carcinoma, dynamic contrast-enhanced magnetic resonance imaging, T2-weighted imaging, preoperative staging
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