Comparison of integrated PET/MRI with PET/CT in evaluation of endometrial cancer: a retrospective analysis of 81 cases

医学 子宫内膜癌 麦克内马尔试验 PET-CT 放射科 金标准(测试) 转移 核医学 淋巴结 活检 磁共振成像 正电子发射断层摄影术 癌症 病理 内科学 统计 数学
作者
Lihua Bian,Min Wang,Jing Gong,Honghong Liu,Nan Wang,Ning Wen,Wensheng Fan,Baixuan Xu,Mingyang Wang,Mingxia Ye,Yuanguang Meng
出处
期刊:PeerJ [PeerJ, Inc.]
卷期号:7: e7081-e7081 被引量:27
标识
DOI:10.7717/peerj.7081
摘要

Background The objective of this study was to compare the diagnostic value of integrated PET/MRI with PET/CT for assessment of regional lymph node metastasis and deep myometrial invasion detection of endometrial cancer. Methods Eighty-one patients with biopsy-proven endometrial cancer underwent preoperative PET/CT ( n = 37) and integrated PET/MRI ( n = 44) for initial staging. The diagnostic performance of PET/CT and integrated PET/MRI for assessing the extent of the primary tumor and metastasis to the regional lymph nodes was evaluated by two experienced readers. Histopathological and follow-up imaging results were used as the gold standard. McNemar’s test was employed for statistical analysis. Results Integrated PET/MRI and PET/CT both detected 100% of the primary tumors. Integrated PET/MRI proved significantly more sensitivity and specificity than PET/CT in regional lymph node metastasis detection ( P = 0.015 and P < 0.001, respectively). The overall accuracy of myometrial invasion detection for PET/CT and Integrated PET/MRI was 45.9% and 81.8%, respectively. Integrated PET/MRI proved significantly more accurate than PET/CT ( P < 0.001). Conclusion Integrated PET/MRI, which complements the individual advantages of MRI and PET, is a valuable technique for the assessment of the lymph node metastasis and myometrial invasion in patients with endometrial cancer.
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