一个便携式的光声学显微镜和超声系统用于直肠癌成像
Sitai Kou1, Sanskar Thakur1,2, Ahmed Eltahir3
1Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA.
Photoacoustics
|September 9, 2024
概括
这项研究改进了一种声学分辨率光声学显微镜和超声波 (ARPAM/US) 系统,用于更好的癌症成像. 增强的ARPAM/美国系统显示出区分正常,癌症和治疗瘤组织的前景.
科学领域:
- 生物医学光学 生物医学光学
- 医疗成像医学成像
- 声学成像 声学成像
背景情况:
- 光声显微镜提供功能性血管数据,而超声波提供结构信息.
- 将光声学显微镜和超声波 (PAM/US) 结合起来,有可能用于癌症治疗反应评估等临床应用.
- 之前的PAM/US系统面临的挑战限制了广泛的临床采用.
研究的目的:
- 报告声学分辨率光声学显微镜和超声波 (ARPAM/US) 系统的显著改进.
- 为了提高系统分辨率,光学合和信号特性,以提高性能.
- 评估系统在分化结直肠癌组织中的有效性.
主要方法:
- 进行了系统模拟和幻影研究以描述改进.
- 增强的ARPAM/US系统应用于19个被切除的肠直肠癌样本.
- 进行了初步的体内成像研究,以评估临床适用性.
主要成果:
- 改进的ARPAM/美国系统显示了更高的探头内光学合效率和信号噪声比.
- 通过减少维护实现了数据吞吐量增加和系统稳定性的提高.
- 在正常,癌症和治疗后瘤组织之间观察到显著不同的光声学和超声波信号.
结论:
- 增强的ARPAM/US系统为生物医学成像提供了更好的性能.
- 该系统显示了对结直肠癌和治疗反应的准确评估的潜力.
- 需要进一步的体内研究来验证临床效用.
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