基于聚乙醇 (PVA) 的幻影用于使用多参数超声波检测前列腺癌:一个验证研究
Adel Jawli1,2, Ghulam Nabi1, Zhihong Huang1,3
1Division of Imaging Sciences and Technology, School of Medicine, Ninewells Hospital, University of Dundee, Dundee DD1 9SY, UK.
Bioengineering (Basel, Switzerland)
|November 27, 2024
概括
这项研究使用聚乙烯醇 (PVA) 和增强剂开发了一种多参数超声波 (mpUS) 幻影. 由此产生的幻影精确地模仿前列腺组织特性,以改善癌症诊断和训练.
科学领域:
- 生物医学工程 生物医学工程
- 医疗成像医学成像
- 材料科学 材料科学 材料科学
背景情况:
- 多参数超声波 (mpUS) 对于提高前列腺癌 (PCa) 诊断至关重要.
- 组织模拟材料 (TMM) 幻影为超声波研究提供了对动物模型的伦理和一致的替代方案.
- 具有不同分子量 (Mw) 的聚乙醇 (PVA) 被选择用于TMM幻象开发.
研究的目的:
- 开发和描述一种新的TMM幻影,用于前列腺癌 (PCa) 诊断中的多参数超声波 (mpUS) 应用.
- 创建一个可复制的幻影,模仿正常和癌症前列腺组织的声学和机械特性.
- 为了验证幻影的实用性,用于训练和测试先进的超声波诊断技术.
主要方法:
- 四个具有不同Mw的PVA样本用糖醇,碳化 (SiC) 和氧化 (Al2O3) 配制.
- 使用可控的包含尺寸和深度的幻影被创建并使用剪切波弹性学 (SWE) 进行评估.
- 使用超音速超声波,应变弹性学和多普勒超声波扫描mpUS幻体,并与激进前列腺切除数据进行验证.
主要成果:
- PVA幻影表现出受MW和增强器影响的声学特性 (声音速度,衰减).
- 的模量随着结解周期的变化而变化,表明可调节的机械性能.
- SWE测量受到包括深度 (p = 8.0039 × 10-8) 的显著影响,表明对组织变异的敏感性. 多普勒超声波测量了模拟血管中的血液流动.
结论:
- 聚乙醇 (PVA) 与增强剂材料混合,成功地创建了一个多参数超声波 (mpUS) 幻影.
- 开发出来的幻体精确地模仿正常和异常前列腺组织的关键特性,包括回声性和弹性.
- 这种TMM幻影作为先进诊断培训和前列腺癌成像验证的宝贵工具.
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