相关实验视频

Updated: Jul 15, 2026

Cardiac Magnetic Resonance Imaging at 7 Tesla
09:14

Cardiac Magnetic Resonance Imaging at 7 Tesla

Published on: January 6, 2019

11.5K

一个8通道收发器线圈用于7T的动脉成像,使用一个优化的屏蔽设计

Pedram Yazdanbakhsh, Marcus Couch, Kyle M Gilbert

    IEEE transactions on bio-medical engineering
    |March 21, 2024
    PubMed
    概括

    这项研究优化了用于动脉7TMRI的射频 (RF) 线圈屏蔽,显著提高了传输性能和安全性. 新设计提高了B1+效率和特定吸收率 (SAR) 效率,以获得更好的成像.

    更多相关视频

    Phase Contrast Magnetic Resonance Imaging in the Rat Common Carotid Artery07:02

    Phase Contrast Magnetic Resonance Imaging in the Rat Common Carotid Artery

    Published on: September 5, 2018

    9.5K
    Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla08:51

    Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla

    Published on: February 19, 2021

    9.0K

    相关概念视频

    Magnetic Resonance Imaging01:24

    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 for Cardiovascular System III: X-Ray01:20

    Imaging Studies for Cardiovascular System III: X-Ray

    The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
    Definition and Purpose
    An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
    Imaging Studies for Cardiovascular System IV: CMRI01:21

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

    Imaging Studies for Cardiovascular System V: CT

    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...
    Imaging Studies IV: Magnetic Resonance Imaging01:27

    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,...
    Imaging Studies VII: Vascular Imaging01:19

    Imaging Studies VII: Vascular Imaging

    DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...