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相关概念视频

Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...

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Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers
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远红色喷雾成像探针用于FAP向癌症手术.

Zachary Rabinowitz1, Riley J Deutsch-Williams1, Ralph Weissleder1,2

  • 1Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, Massachusetts 02114, United States.

Bioconjugate chemistry
|October 28, 2025
PubMed
概括

喷涂探针 (SOP) 为光导向手术 (FGS) 提供了一种新的方法,用于增强瘤边缘检测. 这项研究确定了一种最佳的远红色SOP,可以快速划分高对比度的瘤边缘.

科学领域:

  • 在瘤学瘤学.
  • 医疗成像医学成像
  • 生物结合化学 生物结合化学

背景情况:

  • 光引导手术 (FGS) 增强了瘤边缘检测,但通常依赖于缓慢清除的全身探针.
  • 局部喷雾探针 (SOP) 在剂量,按需应用和改善FGS对比度方面具有优势.

研究的目的:

  • 发现和描述一种新的远红色光成像剂,用于作为喷涂探针 (SOP) 的局部施用.
  • 为了评估SOP在术内瘤边缘划定中针对纤维细胞激活蛋白α的疗效.

主要方法:

  • 合成和选多个远红色光探针用于SOP应用.
  • 探针特征的评估,包括瘤与背景的比率和成像对比度.
  • 在低剂量下,评估最佳SOP在快速瘤边缘划分方面的性能.

主要成果:

  • 在10个合成探测器中,只有1个表现出最佳的成像和生物特性.
  • 领先的SOP (FTF-Cy5) 显著增加了瘤与背景比率的5-15倍.
  • 在局部应用和洗后,FTF-Cy5在低剂量 (5微米) 中快速划分瘤边缘 (<10分钟).

结论:

  • 开发的深红色SOP (FTF-Cy5) 显示出作为术内瘤边缘划分工具的巨大潜力.

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  • 这种喷涂方法简化了手术工作流程,并可能导致更完整的癌症切除.
  • 远红色光成像系统可以与标准操作程序一起用于增强手术指导.