盆腔CTA数字化三维重建模型判断女性巨大盆腔包块起源的效能

Efficiency analysis of digital three-dimensional reconstruction model of pelvic CTA in judging the origin of female giant pelvic mass

目的探讨CT血管成像(CTA)数字化三维重建模型(以下简称“三维模型”)在女性盆腔包块诊断中的价值。方法选取2021年1月至2023年4月在西安市人民医院(西安市第四医院)因盆腔包块住院且手术的患者98例,术前均行B超和CTA检查,采集CTA原始数据,采用三维重建软件建立盆腔数字化三维模型,依据盆腔包块供血判断包块来源。以术后病理诊断为金标准,比较不同术前诊断方法(B超、CTA检查和三维模型)与术后病理诊断的符合率。绘制受试者工作特征(ROC)曲线,评估不同术前诊断方法判断盆腔肿瘤卵巢来源的效能。结果98例患者共130个盆腔包块纳入研究,包块最大径平均为(71.61±3.03)mm,其中卵巢来源83个,非卵巢来源47个。以术后病理诊断为金标准,术前三维模型的诊断符合率为72.31%,高于B超(58.46%)和CTA(52.31%),差异均有统计学意义(P<0.001)。以三维模型显示包块血供源于卵巢动脉或子宫动脉-卵巢支来判定包块源于卵巢,其灵敏度、特异度、阳性预测值、阴性预测值、准确率、Kappa值及ROC曲线下面积(AUC)分别为79.51%、91.49%、94.29%、71.67%、83.85%、0.67、0.855。结论盆腔CTA三维模型可直观显示包块血供来源与特点、包块与邻近器官关系以指导临床治疗,利用卵巢动脉及子宫动脉-卵巢支来判断盆腔包块的卵巢来源具有一定临床价值。

Objective To explore the value of pelvic CT angiography(CTA)digital three-dimensional reconstruction model(abbreviated as“three-dimensional model”)in the diagnosis of female pelvic mass.Methods A total of 98 patients with pelvic mass who were hospitalized and operated in Xi’an People’s Hospital(Xi’an Fourth Hospital)from January 2021 to April 2023 were selected.All patients underwent B-ultrasound and CTA examination before operation,and the original data of CTA were collected.The digital three-dimensional model of pelvic mass was established by three-dimensional reconstruction software,and the source of pelvic mass was judged according to the blood supply of pelvic mass.Taking postoperative pathological diagnosis as the gold standard,the coincidence rate between different preoperative diagnosis methods(B-ultrasound,CTA examination and three-dimensional model)was compared.The receiver operating characteristic(ROC)curve was plotted to evaluate the efficacy of different preoperative diagnostic methods in judging the ovarian origin of pelvic tumors.Results A total of 130 pelvic masses were included in 98 patients,and the average maximum diameter of the mass was(71.61±3.03)mm,including 83 ovarian masses and 47 non-ovarian masses.Taking postoperative pathological diagnosis as the gold standard,the diagnostic coincidence rate of the preoperative three-dimensional model was 72.31%,which was higher than that of B-ultrasound(58.46%)and CTA(52.31%),and the differences were statistically significant(P<0.001).The sensitivity,specificity,positive predictive value,negative predictive value,accuracy,Kappa value,and area under the ROC curve were 79.51%,91.49%,94.29%,71.67%,83.85%,0.67 and 0.855,respectively,when the three-dimensional model showed that the blood supply of the mass originated from ovarian artery or uterine artery-ovarian branch.Conclusion The three-dimensional model of pelvic CTA can directly display the blood supply source,characteristics of mass,and the relationship between mass and adjacent organs,which can guide the clinical treatment.It has certain clinical value to judge the ovarian origin of pelvic mass by using ovarian artery and uterine artery-ovarian branch.