用霍斯菲尔德单位测量的岩石尺寸与衰减之间的关系,以及破碎所需的总激光能量。

IF 1.4 4区 医学 Q3 UROLOGY & NEPHROLOGY
Scandinavian Journal of Urology Pub Date : 2022-08-01 Epub Date: 2022-08-05 DOI:10.1080/21681805.2022.2104366
Mohamed Saad Elsayed, Mohamed Esmat Abo Ghareeb, Hany Hamed, Mohamed Elmoazen, Ahmed Amr Shorbagy
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引用次数: 0

摘要

背景:预测输尿管镜(URS)碎石术中钬激光的总激光能量(TLE)对指导泌尿科医师选择最佳纤维尺寸至关重要。本研究旨在评估结石大小与HU测量的结石衰减之间的关系,以预测手术期间的TLE。方法:我们对2018年9月至2019年9月在艾因沙姆斯大学附属医院泌尿外科接受尿路碎石术的患者进行观察性前瞻性队列研究,采用钬YAG激光作为碎石方法。记录患者的人口学和临床特征、结石位置、结石大小、非对比CT HU测量的结石衰减、TLE和手术时间。数据分析采用Jamovi软件(macOS 2.0版)。结果:共纳入40例患者(男22例,女18例),平均年龄57.8岁。平均结石大小为9.8 mm3,平均HU为858.8单位,平均TLE为3.5 KJ。HU测量的结石大小和结石衰减与TLE呈正相关(r分别为0.81和0.84);P = 0.001和0.71)。结论:结石衰减(由HU测量)和结石大小与尿毒症碎石术所需的TLE呈正相关。因此,HU和结石大小都可以预测TLE,这将有助于指导泌尿科医生为手术选择最佳纤维大小。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluation of the relation between size of stone and its attenuation measured by Hounsfield units and the total laser energy required to fragment it.

Background: Anticipating the total laser energy (TLE) of Holmium YAG laser required for ureteroscopic (URS) lithotripsy is essential to guide urologists in selecting the optimal fiber size. This study aimed at evaluating the relationship between stone size and stone attenuation measured by HU as predictors for the TLE during the procedure.

Methods: We conducted an observational prospective cohort study of patients undergoing URS lithotripsy at the Urology department of Ain Shams University Hospitals from September 2018 to September 2019 with the use of a holmium YAG laser as the lithotripsy method. Patients' demographic and clinical characteristics, stone location, stone size, stone attenuation measured by HU from the non-contrast CT, TLE, and procedure time were recorded. Data were analyzed using Jamovi software (version 2.0 for macOS).

Results: Forty patients were included in the study (22 males and 18 females) with a mean age of 57.8 years. The mean stone size was 9.8 mm3, the mean HU was 858.8 units, and the mean TLE was 3.5 KJ. Both stone size and stone attenuation measured by HU were positively correlated with TLE (r = 0.81 and 0.84, respectively; p < 0.001 for both). Further, regression analysis showed that both variables could significantly predict the TLE (ß = 0.001 and 0.71, respectively).

Conclusions: Both stone attenuation, as measured by HU, and stone size positively correlate with TLE required for URS lithotripsy. Therefore, both HU and stone size can predict the TLE, which will be helpful to guide the urologist in selecting the optimal fiber size for the procedure.

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来源期刊
Scandinavian Journal of Urology
Scandinavian Journal of Urology UROLOGY & NEPHROLOGY-
CiteScore
2.90
自引率
6.70%
发文量
70
期刊介绍: Scandinavian Journal of Urology is a journal for the clinical urologist and publishes papers within all fields in clinical urology. Experimental papers related to clinical questions are also invited.Important reports with great news value are published promptly.
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