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相关概念视频

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

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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...
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Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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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,...
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Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
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Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

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Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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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...
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Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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相关实验视频

Updated: Jul 24, 2025

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
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MR血管学:对比增强采集技术

Prashant Nagpal1, Thomas M Grist2

  • 1Cardiovascular Imaging, Department of Radiology, University of Wisconsin-Madison, School of Medicine and Public Health, 600 Highland Avenue, Madison, WI 53705, USA.

Magnetic resonance imaging clinics of North America
|July 6, 2023
PubMed
概括

与对比增强的MR血管图 (CE-MRA) 为评估心血管结构提供了CT血管图的安全替代方案. 这种技术使用了加多对比度,避免了毒剂和辐射暴露,因此非常适合血管评估.

关键词:
3D MR血管学 3D MR血管学鲜血的MRA是一种明亮的MRA.用对比增强的MR血管图.在加多利尼姆 (Gadolinium) 中.在MR血管学上,MR血管学周围动脉 周围动脉脏动脉中的脏动脉技术 技术 技术 技术时间解决的MRA.

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相关实验视频

Last Updated: Jul 24, 2025

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06:29

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科学领域:

  • 放射学和医学成像学 医学成像学
  • 心血管成像 - 心血管成像

背景情况:

  • 增强对比度的MRI血管造影 (CE-MRA) 是一种被广泛采用的磁共振成像技术.
  • 它经常用于对心血管结构的综合评估.
  • CE-MRA与对比增强型计算机断层扫描 (CT) 血管学具有相似之处,但采用基于加多的对比剂.

研究的目的:

  • 审查CE-MRA的物理原理,局限性和技术应用.
  • 突出CE-MRA作为CT血管学用于血管评估的有价值的替代品.
  • 强调CE-MRA的优点,包括避免毒对比剂和电离辐射.

主要方法:

  • 审查关于CE-MRA技术的现有文献.
  • 在CE-MRA中讨论了控制对比度增强和图像采集的基本物理原理.
  • 对CE-MRA与CT血管学区分的技术因素的分析.

主要成果:

  • CE-MRA提供了心血管结构的详细可视化.
  • 该技术提供了CT血管造影的替代方案,没有毒对比或辐射的风险.
  • 了解技术因素对于最佳的CE-MRA性能至关重要.

结论:

  • 与CT血管造影相比,CE-MRA是血管评估的有效和更安全的成像模式.
  • 该审查提供了关于CE-MRA的原则,局限性和应用的见解.
  • 进一步了解和应用CE-MRA技术可以提高心血管诊断.