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Related Concept Videos

Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

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

Imaging Studies VII: Vascular Imaging

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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...
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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 II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

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Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
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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

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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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Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
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Updates in Multiple Sclerosis Imaging.

Zachery Rohm1, Ahmad Toubasi1, Carynn Koch1

  • 1Vanderbilt University Medical Center, Nashville, Tennessee.

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Summary
This summary is machine-generated.

Magnetic resonance imaging (MRI) biomarkers aid in diagnosing and predicting outcomes for multiple sclerosis (MS). New criteria incorporate paramagnetic rim lesions (PRL) and central vein sign (CVS) for improved MS diagnosis and patient care.

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Area of Science:

  • Neurology
  • Radiology
  • Immunology

Background:

  • Multiple sclerosis (MS) is a leading cause of neurological disability in young adults.
  • MS diagnosis is challenging due to varied symptoms and overlapping lesions with other conditions.
  • Clinical variability complicates accurate prognosis for individuals with MS.

Purpose of the Study:

  • To review the impact, advances, and limitations of imaging biomarkers in multiple sclerosis (MS).
  • To discuss the role of quantitative MRI techniques in MS clinical care and research.
  • To highlight the importance of understanding imaging biomarkers for clinicians managing MS patients.

Main Methods:

  • Review of current literature on MRI biomarkers for MS diagnosis and prognostication.
  • Discussion of quantitative MRI techniques for assessing microstructural injury.
  • Analysis of the integration of new biomarkers into diagnostic criteria.

Main Results:

  • MRI biomarkers like T2-lesions, black holes, atrophy, paramagnetic rim lesions (PRL), and central vein sign (CVS) assist in MS diagnosis and prognosis.
  • PRL and CVS will be included in the 2024 McDonald Criteria, enhancing MS diagnostic accuracy.
  • Quantitative MRI provides microstructural injury assessment, crucial for therapeutic development.

Conclusions:

  • Clinicians require a foundational understanding of imaging biomarkers for effective MS patient management.
  • Imaging biomarkers are increasingly vital for both routine clinical care and translational research in MS.
  • Advances in MRI techniques offer improved diagnostic and prognostic capabilities for multiple sclerosis.