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使用数字双胞胎计算模型模拟图像引导的微波除疗法.

Frankangel Servin1,2, Jarrod A Collins1, Jon S Heiselman1,2,3

  • 1Department of Biomedical EngineeringVanderbilt University Nashville TN 37235 USA.

IEEE open journal of engineering in medicine and biology
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概括

医疗保健数字双胞胎 (DTs) 增强肝癌微波切除 (MWA) 计划. 增加的肝脂肪显著增加MWA体积,瘤的存在会影响特定模拟的结果.

关键词:
计算模型 计算模型数字双胞胎数字双胞胎是什么意思脂肪肝是一种脂肪肝疾病.有限元素的元素是有限的.肝癌 肝癌 是一种肝癌.微波除是微波除的一种方法.

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科学领域:

  • 医学中的计算建模.
  • 生物物理模拟用于外科手术规划.
  • 医学成像和图像分析.

背景情况:

  • 针对肝癌患者的特定手术规划正在推进,例如医疗数字双胞胎 (DTs) 等计算工具.
  • 微波除 (MWA) 用于肝癌治疗,但目前的指导方针缺乏组织特异性参数,如 perfusion,steatosis 和纤维化.
  • 了解这些因素对于优化MWA治疗范围至关重要.

研究的目的:

  • 建立一个MRI成像框架,用于创建肝脏的3D生物物理DTs.
  • 预测不同脂肪含量的肝脏中MWA的分娩 (肥肉症) 和瘤的存在.
  • 评估组织特异性因素对MWA结果的影响.

主要方法:

  • 使用结构,功能和生物标志物成像数据构建了针对患者的肝脏DTs.
  • 模拟MWA使用915MHz和2450MHz天线在DTs中与五个等级的肥胖症,无论是有瘤还是没有瘤.
  • 分析了四种微波天线放置策略及其对除区覆盖范围的影响.

主要成果:

  • 肝脏脂肪含量显著增加了切除量:29-42%在瘤先的DTs和55-60%在瘤知情的DTs.
  • 在915MHz模拟中,瘤的存在没有显著影响除体积,但在2450MHz模拟中,在轻度,中度和高脂肪脂肪酸症等级中增加了它们.
  • 考虑到患者特异性的瘤特性,对手术前评估的剥离预测有重大影响.

结论:

  • 肝脏脂肪含量是影响MWA疗效的关键因素,需要将其纳入治疗计划.
  • 开发的MR成像框架和DTs能够准确预测MWA的发射,改善手术规划.
  • DTs为个性化医疗提供了一个强大的工具,通过考虑患者特定的因素来优化MWA用于肝癌治疗.