Evaluation of validity and reliability of novel rapid measurement for infundibulopelvic angle: a comparison with PACS system

作者全名："Zhang, Gaojie; Xu, Qiao; Zheng, Yongbo; Jiang, Yu; Peng, Yueqiang; Wang, Linfeng; Ding, Siwei; Liu, Jiayu"

作者地址："[Zhang, Gaojie; Zheng, Yongbo; Jiang, Yu; Peng, Yueqiang; Wang, Linfeng; Ding, Siwei; Liu, Jiayu] Chongqing Med Univ, Affiliated Hosp 1, Dept Urol, Chongqing 400000, Peoples R China"

通信作者："Liu, JY (通讯作者)，Chongqing Med Univ, Affiliated Hosp 1, Dept Urol, Chongqing 400000, Peoples R China."

来源：EXPERT REVIEW OF MEDICAL DEVICES

ESI学科分类：CLINICAL MEDICINE

WOS号：WOS:001040086100001

JCR分区：Q3

影响因子：2.9

年份：2023

卷号：　

期号：　

开始页：　

结束页：　

文献类型：Article; Early Access

关键词：Accessible renal collecting system; pelvicalyceal anatomy; lower pole calyx; rapid measurement; smart phone; retrograde intrarenal surgery; >

摘要："BackgroundFor patients with lower pole renal calculi (LPC), preoperative evaluation of infundibulopelvic angles (IPA) is of great significance; however, conventional measuring method is often inconvenient in clinical setting. Here we introduce a rapid novel method using built-in inclinometer in smartphone which is often used in anatomical parameters evaluating to implement the measurement of IPA.Materials and methodsThe randomized, self-controlled study on evaluating inclinometer application measured IPA on urography films collected from enrolled LPC patients. Results of statistical analysis for its validity and reliability compared to conventional PACS system are reported. Predictive performance of postoperative stone-free rates by IPA measured with the novel method was also evaluated in this study.ResultsBland-Altman plot result shows that there is favorable agreement between IPA values of these two methods. The time required to utilize the PACS was considerably greater than time required to take similar measure using smartphones. The precision-recall curve (PRC) indicates that the new method has similar predictive performance for postoperative clearance rates as PACS.ConclusionsIn summary, measurement of IPA implemented by integrated inclinometer of smartphone is rapid, convenient, accurate and reliable in evaluating renal anatomy parameters of LPC patients."

基金机构：Research Fund Project of the First Affiliated Hospital of Chongqing Medical University [PYJJ2022-11]

基金资助正文：This paper was funded by the Research Fund Project of the First Affiliated Hospital of Chongqing Medical University (PYJJ2022-11).