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Christina A Neizert¹, Hoang N C Do², Miriam Zibell³

¹Department of General and Visceral Surgery, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Hindenburgdamm 30, 12203, Berlin, Germany. christina.neizert@charite.de.

Scientific reports

|March 27, 2025

概括

一个新的切除成功率 (ASR) 模型预测了肝脏微波切除 (MWA) 的成功. ASR解释了肝血管的冷却,提高了MWA程序的预测准确性.

科学领域:

肝胆道手术肝胆道手术
最少侵入性的瘤学
医学物理医学物理

背景情况:

由于局部血管冷却,肝脏微波切除 (MWA) 疗效受到不可预测的瘤大小减少的挑战.
准确预测MWA结果对于有效的肝脏瘤治疗计划至关重要.
现有的模型往往不完全纳入肝血管系统对切除区域的重大影响.

研究的目的:

为了引入和验证一个简化的预测模型,切除成功率 (ASR),肝脏MWA.
评估ASR在考虑血管冷却效应的情况下预测成功的废除结果的能力.
建立一个可靠的指标,以估计在模拟血管流动的情况下的最小切除半径 (r_3Dmin).

主要方法:

基于三维最小切除半径 (r_3Dmin) 的ASR模型的开发.
标准化MWAs (100W,5分钟) 在ex vivo猪肝模型 (n=148) 上进行.
使用不同流速 (0-500毫升/分钟) 和天线到容器距离 (2.5-10.0毫米) 的玻璃管模拟血管冷却效应.

主要成果:

在不同的模拟血管冷却条件下,ASR模型准确地预测了切除成功.
在没有冷却的情况下,在20毫米的消光直径下实现了100%的ASR.
通过模拟血管冷却,100%的ASR仅限于最多12毫米的剥离直径,证明了该模型对冷却效应的敏感性.

结论:

切除成功率 (ASR) 是一个有希望的,简化的模型,用于预测肝脏MWA的成功.
ASR有效地整合了肝血管冷却对除区域大小的影响.
该模型为改善肝脏MWA手术的可预测性和临床成功提供了有价值的工具.

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