计算机断层扫描的新型特征,以及微小的碎片在激光石灰管的灰尘和微小的碎片
Naoto Tanaka1, Akash Chitrakar2, Satoshi Kitamura3
1Department of Urology, Hara Genitourinary Hospital, Hyogo prefecture, Kobe City, 650- 0012, Hyogo Prefecture, Japan. naoto.t501@gmail.com.
World journal of urology
|March 15, 2025
概括
计算机断层扫描 (CT) 可以在逆行性内手术 (RIRS) 后将残留的石灰与小碎片区分开来. 随着碎片大小减少为尘埃,CT上的石材衰减值下降并变得更加均.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 医疗成像医学成像
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 逆行性内手术 (RIRS) 是治疗结石的常见手术.
- 在RIRS后评估剩余的石头碎片对于治疗成功至关重要.
- 计算机断层扫描 (CT) 经常用于术后评估.
研究的目的:
- 在CT成像上进行RIRS后,评估尿道上部的灰尘和石块碎片的外观.
- 要确定CT能否区分石灰尘和小碎片.
- 通过CT评估RIRS后的残留石材的特性.
主要方法:
- 猪脏被用来模拟人类的结石.
- 石头样本被分为灰尘 (≤250微米),微小碎片 (1.00-1.40毫米) 和小碎片 (2.00-2.36毫米).
- 用CT成像和体积分析软件来描述石块体积,衰减值和标准偏差.
主要成果:
- 平均石块体积随着石块大小的增加而减少.
- 平均和最大CT衰减值 (霍恩斯菲尔德单位) 随着石头的大小显著增加.
- 减弱值的标准偏差随着石块大小的减少而减少,表明同质性增加.
结论:
- 扫描图像和体积分析软件可以区分石灰尘和小碎片.
- 减弱值及其在CT上的同质性与石块碎片大小相关.
- 在RIRS后,CT是评估小残留石块的宝贵工具.
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