MRI诊断女性盆腔囊性病变的准确性

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2019年1月

MRI 诊断女性盆腔囊性病变的准确性

张燚

1,2

,尚艳荣

3*

(1.空军军医大学西京医院,陕西西安,710032;2.宝鸡市第五人民医院影像科,陕西宝鸡,722405;

3.宝鸡市第五人民医院妇产科,陕西宝鸡,722405)

摘要:目的分析磁共振成像(MRI )在女性盆腔囊性病变诊断中的准确性。方法回顾性分析2017年2月至2018年2月在医院

经病理证实的74例女性盆腔囊性病变患者的病例资料,所有患者术前给予MRI 检查,分析其MRI 表现以及诊断女性盆腔囊

性病变的定位和定性准确性。结果MRI 结果显示,良性69例,恶性5例;盆腔非赘生性囊肿53例,分别是卵巢囊肿25例,卵巢内膜异位囊肿12例,盆腔囊性感染性肿块10例,其他囊性病变6例;囊性肿瘤21例,分别是卵巢囊腺瘤9例,卵巢囊腺癌5例,卵巢囊性畸胎瘤7例。MRI 对盆腔囊性病变的定位准确性达100.0%,灵敏度为90.6%,特异度为85.7%,阳性预测值为94.1%,阴性预测值为78.3%。结论MRI 在诊断女性盆腔囊性病变的准确性较高,值得临床推广应用。

关键词:磁共振成像;盆腔囊性病变;准确性中图分类号:R445.2;R711文献标志码:A

文章编号:2096-1413(2019)01-0130-02

Accuracy of MRI in the diagnosis of female pelvic cystic lesions

ZHANG Yi 1,2,SHANG Yan-rong 3*

(1.Xijing Hospital,Air Force Military Medical University,Xi'an 710032;2.Imaging Department,the Fifth People's Hospital of Baoji,Baoji 722405;3.Obstetrics and Gynecology Department,the Fifth People's Hospital of Baoji,

Baoji 722405,China)

ABSTRACT:Objective To analyze the accuracy of magnetic resonance imaging (MRI)in the diagnosis of female pelvic cystic lesions.Methods The data of 74cases of female pelvic cystic lesions confirmed by pathology in the hospital from February 2017to February 2018were retrospectively analyzed.All patients were given MRI examination before surgery.The MRI findings and the accuracy of localization and characterization in the diagnosis of female pelvic cystic lesions were analyzed.Results The results of MRI showed that 69cases were benign and 5cases were malignant.There were 53cases of pelvic non-neoplastic cysts,included 25cases of ovarian cysts,12cases of ovarian endometriosis cysts,10cases of pelvic cystic infectious mass and 6cases of other cystic lesions.There were 21cases of pelvic cystic tumors,included 9cases of ovarian cystadenoma,5cases of ovarian cystadenocarcinoma and 7cases of ovarian cystic teratoma.The accuracy of MRI in the localization of pelvic cystic lesions was 100.0%,the sensitivity was 90.6%,the specificity was 85.7%,the positive predictive value was 94.1%,and the negative predictive value was 78.3%.Conclusion MRI has a high accuracy in the diagnosis of female pelvic cystic lesions and worthy of clinical promotion and application.KEYWORDS:magnetic resonance imaging ;pelvic cystic lesions;accuracy

DOI :10.19347/ki.2096-1413.201901061作者简介:张燚(1971-),男,汉族,陕西榆林人,副主任医师,硕士在读。研究方向:MRI 应用。*通讯作者:尚艳荣,E -mail :610789301@.

技术方法

盆腔囊性病变是女性盆腔病变中常见病变之一,发病率较高,病因复杂,临床上可分为盆腔非赘生性囊肿和盆腔囊性肿瘤,不同的类型,其治疗方法和预后差别较大[1]。因此,对盆腔囊性病变进行准确的定位和定性,具有重要的意义[2]。临床对女性盆腔囊性病变以超声为主,但超声对部分复杂病变的诊断有限,定性困难,而磁共振成像(magnetic resonance imag -ing,MRI )具有较高的组织分辨率,能够进行多方位成像,对病

灶周围组织成像清晰。本研究旨在分析MRI 在诊断女性盆腔囊性病变的准确性。1资料与方法1.1一般资料

选取2017年2月至2018年2月在医院经病理证实的74例女性盆腔囊性病变患者为研究对象,患者年龄19~64岁,平均年龄为(37.8±4.2)岁。患者术前均行MRI 检查,了解此项研究,并签署知情同意书。病理结果:卵巢囊肿25例,卵巢内膜异位

囊肿12例,囊性感染性患者10例,其他囊性病变患者6例,卵巢囊腺瘤患者9例,卵巢囊腺癌患者5例,卵巢囊性畸胎瘤7例。1.2方法

于检查前1天晚上给予患者流质饮食,在扫描前2h 饮水

1000~2000mL ,憋尿,保持膀胱充盈。采用ANKE Super1.5T 磁共振扫描仪扫描,T 1加权采用横断面自旋回波(SE )序列(T 1WI ,TR 296ms ,TE 18ms );T 2加权采用横断面及和矢状面TSE 序列(T 2WI ,TR 1628ms ,TE 100ms )。采用马根维显(Gd-

DTPA )作为增强对比剂,静脉注射。扫描范围为耻骨联合至髂嵴区域,扫描层厚为5~8mm 。1.3观察指标

分析其MRI 表现以及诊断女性盆腔囊性病变的定位和定

性准确性。根据病理结果和MRI 结果将病例分为①真阳性:MRI 诊断和手术病理结果均为卵巢非赘生性囊肿;②真阴性:MRI 诊断和手术病理结果均为卵巢囊性肿瘤;③假阳性:MRI 诊断为卵巢非赘生性囊肿,而手术病理结果为卵巢囊性肿瘤;

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