相关实验视频

Updated: Jun 16, 2026

Hyperpolarized 13C Metabolic Magnetic Resonance Spectroscopy and Imaging

Hyperpolarized 13C Metabolic Magnetic Resonance Spectroscopy and Imaging

Published on: December 30, 2016

质瘤患者的先进超极化C代谢成像协议:全面的多模式MRI方法

Adam W Autry¹, Sana Vaziri¹, Jeremy W Gordon¹

¹Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA 94158, USA.

|January 23, 2024

概括

这项研究提出了一种新的多式1H/超极化 (HP) -13CMRI协议用于质瘤监测. 该协议增强了代谢数据的稳定性,并改善了用于更好的患者管理的追踪器捕获.

科学领域:

医疗成像医学成像
在瘤学瘤学.
代谢成像 - 代谢成像

背景情况:

质瘤患者的监测需要强大的代谢成像.
超极化 (HP) - 13C MRI 提供了代谢洞察力,但需要协议优化.
多模式成像可以提高诊断准确性和治疗反应评估.

研究的目的:

实施和评估用于连续质瘤监测的多模式1H/HP-13CMRI协议.
为了提高HP-13C代谢数据采集的稳定性和可靠性.
评估数据质量,频率引用和获取时间的改进.

主要方法:

从42名质瘤患者获得100个1H/HP [1-13C]-pyruvate的MRI检查.
使用混合效应模型评估串行数据覆盖,频率参考精度和采集延迟.
数据质量评估的阿特拉斯衍生与手册处方的比较.
评估基于水的与基于幻影的频率引用.
对追踪器入流捕获的2s与5s采集延迟的分析.

主要成果:

通过基于序列地图的HP-13CMRI (迪斯系数0.977 ± 0.008) 实现一致的体积覆盖.
阿特拉斯衍生的处方显著改善了数据质量 (p = 0.04).
基于水的频率引用减少了非共振激发 (4.1 ± 3.7 Hz与9.9 ± 10.7 Hz相比; p = 0.0007).
较短的采集延迟 (2秒) 显著改善了追踪器入流捕获 (p = 0.007).

结论:

一个全面的多模式1H/HP-13CMR协议已成功实施用于质瘤监测.
该协议增强了对质瘤患者稳定状态和动态新陈代谢的监测.
针对频率引用和获取延迟的优化方法提高了HP-13C代谢数据的稳定性.

关键词:

沃尔堡的战争基于地图的处方图谱.质瘤质瘤是一种超极化碳-13 的情况.运动学的动力学.代谢代谢代谢代谢连续成像系列成像系统

更多相关视频

Whole-body PET/MRI of Pediatric Patients: The Details That Matter

Whole-body PET/MRI of Pediatric Patients: The Details That Matter

Published on: December 19, 2017

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function

Published on: April 12, 2024

相关概念视频

Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

Imaging Studies I: CT and MRI

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...

Imaging Studies IV: Magnetic Resonance Imaging

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...