移植肾患者体质量指数与移植肾皮下深度对声触诊组织量化成像结果的影响

doi:10.6040/j.issn.1671-7554.0.2018.722

摘要/Abstract

摘要： 目的通过分析不同体型患者声触诊组织量化成像(VTIQ)中质控模式图像,研究移植肾患者体质量指数(BMI)与移植肾皮下深度对VTIQ结果的影响。方法选取2017年11月至2018年5月在山东省千佛山医院接受肾移植手术及术后复查中肾功能正常患者119例。首先测量患者身高、体质量,计算BMI值;然后于移植肾皮质选择感兴趣区,测量移植肾表面与体表的距离即移植肾皮下深度;最后利用VTIQ技术获取质控模式图像并评估,将图像质量分为等级A、B、C。患者BMI和质控图像质量等级记入BMI组,患者移植肾皮下深度和质控图像质量等级记入Depth组,并对两组数据进行统计学分析。结果移植肾VTIQ质控模式图像质量在不同BMI患者或移植肾皮下深度之间存在差异(P<0.05)。对两组数据ROC曲线分析可知,AUC(BMI组)>AUC(Depth组),质控模式图像等级B与C之间的截断值为23.99,敏感度为0.800,特异度为0.731。结论移植肾VTIQ质控模式图像质量与患者BMI或移植肾皮下深度有关,BMI或者皮下深度越大,移植肾质控图像质量越差,VTIQ结果准确度越低。相对于移植肾皮下深度,患者BMI对VTIQ结果的评估具有更高的准确性。

关键词: 肾移植, 声触诊组织量化成像, 剪切波弹性成像技术, 质量控制, 体质量指数, 移植肾皮下深度

Abstract: Objective Effects of the BMI and the subcutaneous depth of the transplanted kidney on results of virtual touch tissue imaging quantification(VTIQ)were studied by analyzing the quality control pattern images in VTIQ of patients with different somatotypes. Methods A total of 119 patients undergoing renal transplantation and postoperatively reexaminated as normal were selected from November 2017 to May 2018 in Qianfoshan Hospital Affiliated to Shandong University. Firstly, the height and weight of the patients were measured and the body mass index(BMI)value was calculated. Then the region of interest(ROI)was selected from the transplanted kidney cortex to measure the distance from the surface of the transplanted kidney to the body surface which was defined as a subcutaneous depth of the transplanted kidney. Finally, VTIQ was used to obtain the image in quality control mode and the images were divided into grades A, B and C according to the quality. Patients BMI and grades of images quality were recorded as BMI group, subcutaneous depths of transplanted kidneys and grades of images quality were recorded as Depth group, and the datas of two groups were statistically analyzed. Results The image quality of VTIQ quality control mode of transplanted kidney was different between the patients with different BMI and the different subcutaneous depth of the transplanted kidney(P<0.05). 山东大学学报 (医学版)56卷12期 -盛璇,等.移植肾患者体质量指数与移植肾皮下深度对声触诊组织量化成像结果的影响 \=-ROC curves of two groups showed that AUC(BMI group)was greater than AUC(Depth group), the cut-off value between grades B and C was 23.99, the sensitivity was 0.800, and the specificity was 0.731. Conclusion The images quality of the VTIQ quality control model of transplanted kidney is related to the BMI and subcutaneous depth of the transplanted kidney. The greater the BMI or subcutaneous depth are, the worse the quality of the transplanted kidney quality control images is, that means the lower accuracy of the measured VTIQ results. Compared with the subcutaneous depth of transplanted kidney, the BMI of patient has a higher accuracy in the evalution of VTIQ results.

Key words: Kidney transplantation, Virtual touch tissue imaging quantification, Elastography, Quality control, Body mass index, Subcutaneous depth of the transplanted kidney

中图分类号:

R445.1

盛璇,王永娥,郭丹,兰梦,范凤景,丁红宇. 移植肾患者体质量指数与移植肾皮下深度对声触诊组织量化成像结果的影响[J]. 山东大学学报 (医学版), 2018, 56(12): 68-72.

SHENG Xuan, WANG Yonge, GUO Dan, LAN Meng, FAN Fengjing, DING Hongyu. Effects of body mass index and renal subcutaneous depth on the results of virtual touch tissue imaging quantification in renal transplant patients[J]. Journal of Shandong University (Health Sciences), 2018, 56(12): 68-72.

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