磁共振3D各向同性T2加权图像在宫颈癌侵犯阴道穹隆评估中的应用价值  

Application Value of 3D Isotropic T2 Weighted Images for Assessing Vaginal Fornix Invasion of Cervical Cancer

作　　者：孟醒 田士峰[1] 林良杰 王家正 沈智威 宋清伟[1] 牛雅欣 刘爱连[1] MENG Xing;TIAN Shi-feng;LIN Liang-jie;WANG Jia-zheng;SHEN Zhi-wei;SONG Qing-wei;NIU Ya-xin;LIU Ai-lian(Department of Radiology,the First Affiliated Hospital of Dalian Medical University,Dalian 116011,Liaoning Province,China;Department of Radiology,Dalian Women and Children’s Medical Group,Dalian 116033,Liaoning Province,China;Philips Healthcare,Beijing 100000,China)

机构地区：[1]大连医科大学附属第一医院放射科,辽宁大连116011 [2]辽宁省大连市妇女儿童医疗中心(集团)放射科,辽宁大连116033 [3]飞利浦中国临床科学部,北京100000

出　　处：《中国CT和MRI杂志》2023年第1期123-125,共3页Chinese Journal of CT and MRI

摘　　要：目的探讨基于磁共振三维各向同性(3D isotropic,3D-ISO)T_(2)加权(T_(2)WI)成像的曲面重建技术在宫颈癌侵犯阴道穹窿评估中的应用价值。方法收集经病理证实的33例宫颈癌患者资料,在磁共振下行2D T_(2)WI、3D-ISO T_(2)WI扫描,对3D-ISO图像进行曲面重建。两位医师分别在3D-ISO的曲面重建图及2D图中评估宫颈癌患者穹窿是否受累,并将结果与术后病理进行比较,观察3D-ISO序列曲面重建在诊断阴道穹窿受累情况的准确性。采用χ^(2)检验对两组结果进行比较。结果同2D T_(2)WI图像比较,基于3D-ISO T_(2)WI成像的曲面重建图像在对穹隆受累情况进行评估的结果中能检出更多的真阳性例数和真阴性例数,以及更少的假阳性例数和假阴性例数。3D-ISO序列的准确率、敏感性与特异性均高于传统2D序列,差异均无统计学意义(P>0.05)。结论术前基于3D-ISO T_(2)WI成像的曲面重建结果对于宫颈癌阴道穹窿受累的诊断有较高的临床价值,为临床病理分期、治疗方案的选择提供可靠的参考依据。Objective To explore the value of curved planar reformation(CPR)on 3D isotropic(3D-ISO)T_(2)WI imaging for assessing vaginal fornix invasion of cervical cancer.Materials and Methods 33 cervical cancer patients with cervical cancer confirmed by pathology admitted were enrolled in this study.All patients underwent 2D T_(2)WI and 3D-ISO T_(2)WI scans,and CPR on 3D-ISO was performed on workstation.Two physicians evaluated whether the uterine fornix of cervical cancer patients was involved in the 3D-ISO CPR image and T_(2)WI image,respectively,and compared the results with the postoperative pathology to observe the accuracy of the 3D-ISO sequence curved reconstruction in the diagnosis of vaginal fornix involvement.Theχ^(2)test was used to compare the results of the two groups.Results Compared with T_(2)WI,there were truer positive and true negatives cases in the 3D-ISO assessment of vaginal fornix invasion,and fewer false positive and false negative cases.The accuracy,sensitivity and specificity of 3D-ISO sequence were higher than that of T_(2)WI.There was no statistically significant difference(P>0.05).Conclusion CPR on 3D-ISO T_(2)WI has considerable clinical value for diagnosis of vaginal fornix invasion of cervical cancer,which provides a reliable reference for clinical pathological staging and treatment plan.

关 键 词：子宫颈癌 阴道穹窿 三维各向同性 

分 类 号：R737.33[医药卫生—肿瘤] R445.2[医药卫生—临床医学]