United Imaging Healthcare, Houston, TX, USA.
Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
Methods Mol Biol. 2021;2216:509-518. doi: 10.1007/978-1-0716-0978-1_31.
Fluorinated compounds feature favorable toxicity profile and can be used as a contrast agent for magnetic resonance imaging and spectroscopy. Fluorine nucleus from fluorinated compounds exhibit well-known advantages of being a high signal nucleus with a natural abundance of its stable isotope, a convenient gyromagnetic ratio close to that of protons, and a unique spectral signature with no detectable background at clinical field strengths. Perfluorocarbon core nanoparticles (PFC NP) are a class of clinically approved emulsion agents recently applied in vivo for ligand-targeted molecular imaging. The objective of this chapter is to outline a multinuclear H/F MRI protocol for functional kidney imaging in rodents for mapping of renal blood volume and oxygenation (pO) in renal disease models.This chapter is based upon work from the COST Action PARENCHIMA, a community-driven network funded by the European Cooperation in Science and Technology (COST) program of the European Union, which aims to improve the reproducibility and standardization of renal MRI biomarkers. This experimental protocol chapter is complemented by a separate chapter describing the basic concept of functional imaging using fluorine (F) MR methods.
氟化化合物具有良好的毒性特征,可以用作磁共振成像和光谱学的对比剂。氟化化合物中的氟核具有高信号核的显著优势,其稳定同位素的天然丰度高,旋磁比接近质子,且具有独特的光谱特征,在临床场强下没有可检测的背景。全氟碳核纳米颗粒(PFC NP)是一类最近在体内应用于配体靶向分子成像的临床批准的乳剂试剂。本章的目的是概述用于啮齿动物功能性肾脏成像的多核 H/F MRI 方案,以绘制肾脏疾病模型中的肾血容量和氧合(pO2)图。本章基于 COST 行动 PARENCHIMA 的工作,该行动是由欧盟科学与技术合作组织(COST)计划资助的一个社区驱动网络,旨在提高肾脏 MRI 生物标志物的重现性和标准化。该实验方案章节还辅以单独的章节,介绍使用氟(F)MR 方法进行功能成像的基本概念。