带有MRA的NeuroMix:一种快速的MR协议,用于减少急性神经病症患者的头CTA
Johannes H Decker1, Alexander T Mazal2, Amy Bui2
1From the Division of Neuroimaging and Neurointervention (J.H.D., A.T.M., A.B., N.F., G.Z.), Department of Radiology, Stanford University, Stanford, California jhdecker@stanford.edu.
AJNR. American journal of neuroradiology
|June 21, 2024
概括
快速MRI协议,包括NeuroMix和MRA,在急性神经病例中提供与头部和部CT血管造影 (CTA HN) 相比或优越的诊断信息. 这种方法可以减少患者的辐射暴露和对比风险.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 脑血管成像,特别是头部和部的CT血管造影 (CTA HN),在急诊和住院环境中被过度使用.
- 这种过度使用导致辐射暴露增加,对比风险增加,并且经常需要进一步的MRI.
- 快速MRI的进步为及时评估和减少对CTA HN的依赖提供了潜力.
研究的目的:
- 与CTA HN相比,评估快速,未增强的MRI协议 (NeuroMix + MRA) 的诊断性能.
- 确定MRI能否提供同等或优异的信息,从而减少急性神经病症患者需要CTA HN的需要.
主要方法:
- 在24小时内对174名接受CTA HN和3TMRI (NeuroMix + MRA) 的患者进行了回顾性审查.
- 放射科医生评估了MRI与CTA HN相对的发现,以求等价性,独特的发现或错过的发现.
主要成果:
- 在95%的病例中,NeuroMix + MRA协议与CTA HN相等或更好.
- 仅NeuroMix在71%的病例中相当于或更好,在35-36%的病例中发现了独特的发现 (例如,急性心脏病发作,微型出血).
- 在5%的病例中,CTA HN因其更广泛的宫动脉覆盖范围而发现了独特的血管异常.
结论:
- 快速的MRI协议 (NeuroMix + MRA) 是非常有效的评估急性神经病理表现,匹配或超过CTA HN的诊断产量.
- 这种MRI-first方法有可能减少与辐射和对比相关的风险,使患者和医疗保健系统受益.
- 进一步的试验可以在选定的患者群体中探索这种未增强的MRI策略,以优化成像途径.
相关概念视频
01:24Magnetic 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...
01:14Imaging 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...
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...
01:21Imaging Studies for Cardiovascular System IV: CMRI
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...