相关实验视频

Updated: Jun 6, 2025

Combined In vivo Optical and µCT Imaging to Monitor Infection, Inflammation, and Bone Anatomy in an Orthopaedic Implant Infection in Mice

Combined In vivo Optical and µCT Imaging to Monitor Infection, Inflammation, and Bone Anatomy in an Orthopaedic Implant Infection in Mice

Published on: October 16, 2014

使用基于万科米辛的正子发射断层扫描追踪器的细菌向成像可以区分感染与无菌炎症

G B Spoelstra¹, L M Braams², F F A IJpma³

¹Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands.

European journal of nuclear medicine and molecular imaging

|November 28, 2024

概括

新的18F-万科米辛PET标记剂在体内有效检测出格拉姆阳性细菌感染. 这些标记物区分感染和无菌炎症,不像18F-FDG,提供了一个有前途的诊断工具.

科学领域:

核医学是一种核医学.
分子成像学分子成像学
传染病诊断传染病诊断传染病诊断

背景情况:

细菌感染带来了重大的医疗挑战,需要先进的诊断方法.
更快,更准确的诊断对于有效的感染治疗至关重要.
针对细菌的分子成像为改善诊断提供了潜在的解决方案.

研究的目的:

评估两种基于18F-万科米辛的新型正子发射断层扫描 (PET) 标记器,用于在体内检测深层次的格拉姆阳性细菌感染.
为了比较这些标记物的诊断性能与标准的[18F]FDG PET成像.
评估标记剂区分细菌感染和无菌炎症的能力.

主要方法:

在小鼠肌肉炎模型中对[18F]BODIPY-FL-vancomycin和[18F]PQ-VE1-vancomycin的评估.
使用黄金葡萄球菌 (格拉姆阳性) 和大肠杆菌 (格拉姆阴性) 感染的标记物特异性的评估.
使用Cytodex珠子诱导无菌炎症,使用酸盐缓冲盐水进行控制.
使用[18F]FDG进行比较成像,以及动态PET测量,生物分布分析和免疫组织病理学.

主要成果:

两种18F-万科米辛PET标记物都显示在感染部位积累,但没有无菌炎症.
这与[18F]FDG.观察到的吸收模式形成鲜明对比.
实现了显著的目标与非目标比率:2.95对于[18F]BODIPY-FL-vancomycin和1.48对于[18F]PQ-VE1-vancomycin.
[18F]BODIPY-FL-vancomycin表现出更快的清除速度.

结论:

基于万科米辛的PET成像为区分格兰阳性细菌感染提供了一个有希望的策略.
开发的标记物显示出改善深层感染检测的潜力.
这种方法可以提高细菌感染的诊断和管理.

关键词:

18F-万科米辛是一种基于抗生素的追踪剂.细菌感染成像成像学在生物体内,在生物体内.肌肉炎是一种肌肉炎.在这里,PET是PET.范科米辛是一种药物.

更多相关视频

Author Spotlight: Neutrophil Extracellular Traps Imaging in Human and Mouse Tissues

Author Spotlight: Neutrophil Extracellular Traps Imaging in Human and Mouse Tissues

Published on: August 18, 2023

Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation

Fluorescence-mediated Tomography for the Detection and Quantification of Macrophage-related Murine Intestinal Inflammation

Published on: December 15, 2017

相关概念视频

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET

Positron Emission Tomography

Positron Emission Tomography

Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...