Magnetic Resonance Imaging (MRI)

MRI creates images from the magnetic resonance created in hydrogen atoms when they are polarized and an electromagnetic pulse is used to knock them off axis. This section includes MR analysis software, MRI scanners, gadolinium contrast agents and related magnetic resonance imaging accessories.

According to a pilot study published in ARRS’ American Journal of Roentgenology (AJR), the flexed elbow valgus external rotation (FEVER) view can improve magnetic resonance imaging (MRI) evaluation of the ulnar collateral ligament (UCL) in Major League Baseball (#MLB) pitchers.

(A) Side view of volunteer demonstrating proper positioning for FEVER view; note elevated flexed elbow and sandbags to induce valgus stress. Elbow coil is not included in image.

(B) Coronal fat-saturated proton-density weighted MR image in FEVER view in 20-year-old male pitcher shows normal anterior bundle of UCL (blue arrow) and 2.9 mm UT articular width.

News | Magnetic Resonance Imaging (MRI) | June 04, 2021
Improved Elbow MRI View for Major League Baseball Pitchers
June 4, 2021 — According to a pilot study published in ARRS’ American Journal of Roentgenology (AJR), the flexed elbow...
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A) Ultrasound in 28-year-old woman (B) MRI in 34-year-old woman with suspected PAS disorder. Focal area of placental tissues bulge toward imaginary lines of normal uterine contour (dash lines). Length (L) and depth (D) measurements of placental bulge also demonstrated. p = placenta; b = bladder. Image courtesy of American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

A) Ultrasound in 28-year-old woman (B) MRI in 34-year-old woman with suspected PAS disorder. Focal area of placental tissues bulge toward imaginary lines of normal uterine contour (dash lines). Length (L) and depth (D) measurements of placental bulge also demonstrated. p = placenta; b = bladder. Image courtesy of American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

News | Ultrasound Imaging | June 01, 2021
Ultrasound, MRI Aid Placenta Accreta Diagnosis
June 1, 2021 — According to an open-access Editor's Choice article in ARRS' American Journal of Roentgenology (AJR),...
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Feature | Coronavirus (COVID-19) | May 26, 2021 | By Dave Fornell, Editor
Xenon MRI Showed Alveolar Capillary Diffusion Limitation in COVID-19 Long-haulers
May 26, 2021 — There are increasing reports of persistent symptoms after a patient recovers from COVID-19, now called...
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The U.S. Food and Drug Administration (FDA) issued this final guidance: Testing and Labeling Medical Devices for Safety in the Magnetic Resonance (MR) Environment.

Image courtesy of Philips

News | Magnetic Resonance Imaging (MRI) | May 21, 2021
FDA Issues Final Guidance on Medical Devices in the MR Environment
May 21, 2021 — The U.S. Food and Drug Administration (FDA) issued this final guidance: Testing and Labeling Medical...
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A new study finds that brachytherapy, a common procedure that delivers radiation directly to cancer cells, may continue safely, potentially without delay or antibiotics, in cervical cancer patients following uterine perforation.

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News | Brachytherapy Systems, Women's Healthcare | May 19, 2021
Brachytherapy May Continue Following Uterine Perforation in Cervical Cancer Patients
May 19, 2021 — A new study finds that brachytherapy, a common procedure that delivers radiation directly to cancer...
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Collaborative research between the University of Kentucky (UK) and University of Southern California (USC) suggests that a noninvasive neuroimaging technique may index early-stage blood-brain barrier (BBB) dysfunction associated with small vessel disease (SVD).

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News | Magnetic Resonance Imaging (MRI) | May 19, 2021
New MRI Technique can Detect Early Dysfunction of the Blood-brain Barrier with Small Vessel Disease
May 19, 2021 — Collaborative research between the University of Kentucky (UK) and University of Southern California (...
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According to the CDC, if you are fully vaccinated you can start doing many things that you had stopped doing because of the pandemic. Infographic courtesy of the CDC.

According to the CDC, if you are fully vaccinated you can start doing many things that you had stopped doing because of the pandemic. Infographic courtesy of the CDC.

News | Coronavirus (COVID-19) | May 13, 2021
CDC Updates Its Mask Recommendations
May 13, 2021 — The Centers for Disease Control and Prevention (CDC) just released a new statement relaxing the...
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According to the British Heart Foundation, heart and circulatory diseases cause more than a quarter (27 percent) of all deaths in the UK, which equates to more than 160,000 deaths each year — or one death every three minutes.

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News | Magnetic Resonance Imaging (MRI) | May 12, 2021
Using Contrast MRI After a Heart Attack Could Increase Survival
May 12, 2021 — According to the British Heart Foundation, heart and circulatory diseases cause more than a quarter (27...
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The American Institute of Ultrasound in Medicine (AIUM) and the American Society of Echocardiography (ASE) have joined the International Contrast Ultrasound Society (ICUS) in recognizing the relatively low risk and important clinical benefits of ultrasound contrast agents (UCAs), which are used routinely around the world to help detect heart disease, stratify the risk of heart attack or stroke, identify and characterize tumors throughout the abdomen, and monitor the effectiveness of cancer therapies in adul
News | Contrast Media | May 11, 2021
Medical Societies Support Safety and Benefits of Ultrasound Contrast Agents
May 11, 2021 — The American Institute of Ultrasound in Medicine (AIUM) and the American Society of Echocardiography (...
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National Imaging Solutions, a recognized leader in medical imaging and radiology solutions, announced it has acquired DynaRad — the oldest manufacturer of portable X-ray systems in the US. This new investment will allow National Imaging Solutions to support its customers by supplying them with DynaRad portable X-ray machines, including a mobile field X-ray device using nanotube technology.
News | Radiology Business | May 11, 2021
National Imaging Solutions Acquires DynaRad
May 11, 2021 — National Imaging Solutions, a recognized leader in medical imaging and radiology solutions, announced it...
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New Module Creates a Warped MRI Scan that Matches Real-Time Ultrasound Results (Graphic: Business Wire)

New Module Creates a Warped MRI Scan that Matches Real-Time Ultrasound Results (Graphic: Business Wire)

News | Artificial Intelligence | May 07, 2021
RSIP Vision Launches AI-based Tool For Prostate MRI and Ultrasound Registration
May 7, 2021 —  RSIP Vision, an experienced leader in driving innovation for medical imaging through advanced artificial...
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3D aMRI not only provides a stunning look inside the "beating brain", but it can also measure this physiological motion in all directions. Here, the amplitude of brain motion is overlayed for each brain slice and orientation in 3D. Image credit: 3D aMRI method outlined in Abderezaei et al. Brain Multiphysics (2021); Terem et al. Magnetic Resonance in Medicine (2021).

3D aMRI not only provides a stunning look inside the "beating brain", but it can also measure this physiological motion in all directions. Here, the amplitude of brain motion is overlayed for each brain slice and orientation in 3D. Image credit: 3D aMRI method outlined in Abderezaei et al. Brain Multiphysics (2021); Terem et al. Magnetic Resonance in Medicine (2021).

News | Magnetic Resonance Imaging (MRI) | May 06, 2021
New Imaging Technique Captures How Brain Moves
May 6, 2021 — Magnetic Resonance Imaging (MRI) images are usually meant to be static. But now, researchers from Mātai...
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After radiosurgery concurrent with nivolumab in 59-year-old patient with melanoma BM (patient 1; Supplemental Tables 3 and 5), F-18 FET PET at follow-up 12 weeks after treatment initiation (bottom row) shows significant decrease of metabolic activity (TBRmean, ?28%) compared with baseline (top row), although MRI changes were consistent with progression according to iRANO criteria. Reduction of metabolic activity was associated with stable clinical course over 10 mo. CE = contrast-enhanced. Image created by

After radiosurgery concurrent with nivolumab in 59-year-old patient with melanoma BM (patient 1; Supplemental Tables 3 and 5), F-18 FET PET at follow-up 12 weeks after treatment initiation (bottom row) shows significant decrease of metabolic activity (TBRmean, ?28%) compared with baseline (top row), although MRI changes were consistent with progression according to iRANO criteria. Reduction of metabolic activity was associated with stable clinical course over 10 mo. CE = contrast-enhanced. Image created by N. Galldiks et al., Research Center Juelich, Juelich, Germany.

News | PET Imaging | May 05, 2021
PET Imaging Adds Valuable Information to Brain Metastasis Monitoring
May 5, 2021 — For patients with brain metastases, amino acid positron emission tomography (PET) can provide valuable...
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News | Artificial Intelligence | April 30, 2021
Canon Medical Expands AI-Based Image Reconstruction Technology
April 30, 2021 — Canon Medical is bringing the power of accessible artificial intelligence (AI) for improved image...
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The Women’s Heart Attack Research Program (HARP) study shows combining OCT and cardiac MRI can help detect the underlying cause of heart attacks in women who did not have blocked arteries.

The Women’s Heart Attack Research Program (HARP) study shows combining OCT and cardiac MRI can help detect the underlying cause of heart attacks in women who did not have blocked arteries.

News | Cardiac Imaging | April 30, 2021
Early MRI Scans Found More People with Broken-heart Syndrome
April 30, 2021 — In almost 10 percent of myocardial infarctions, no obvious cause in the coronary artery can be found....
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Using ultra-high field magnetic resonance imaging (MRI) to map the brains of people with #Down_syndrome (#DS), #researchers from #CaseWesternReserveUniversity, #ClevelandClinic, University Hospitals and other institutions detected subtle differences in the structure and function of the #hippocampus—a region of the #brain tied to memory and learning.

Using ultra-high field magnetic resonance imaging (MRI) to map the brains of people with Down syndrome (DS), researchers from Case Western Reserve University, Cleveland Clinic, University Hospitals and other institutions detected subtle differences in the structure and function of the hippocampus—a region of the brain tied to memory and learning.

News | Magnetic Resonance Imaging (MRI) | April 29, 2021
Ultra-high Field MRI Detects Subtle Differences of Brain’s ‘Hippocampus’ in People with Down Syndrome
April 29, 2021 — Using ultra-high field magnetic resonance imaging (MRI) to map the brains of people with Down syndrome...
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Examples of axial FLAIR sequences from studies within dataset A. From left to right: a patient with a 'likely normal' brain; a patient presenting an intraparenchymal hemorrhage within the right temporal lobe; a patient presenting an acute infarct of the inferior division of the right middle cerebral artery; and a patient with known neurocysticercosis presenting a rounded cystic lesion in the left middle frontal gyrus. Image courtesy of Radiological Society of North America

Examples of axial FLAIR sequences from studies within dataset A. From left to right: a patient with a 'likely normal' brain; a patient presenting an intraparenchymal hemorrhage within the right temporal lobe; a patient presenting an acute infarct of the inferior division of the right middle cerebral artery; and a patient with known neurocysticercosis presenting a rounded cystic lesion in the left middle frontal gyrus. Image courtesy of Radiological Society of North America

News | Artificial Intelligence | April 22, 2021
AI-based system could help triage brain MRIs
April 22, 2021 — An artificial intelligence-driven system that automatically combs through brain MRIs for abnormalities...
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#coronavirus #COVID19 #pandemic Face masks may contain metallic components, both visible and hidden, which in the magnetic resonance imaging (MRI) environment may pose a hazard. The role of face masks in infection control is recognized and their use should not be avoided as simple practices can avoid these hazards.

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News | Magnetic Resonance Imaging (MRI) | March 31, 2021
Use of Face Masks in the MRI Environment
March 31, 2021 — Face masks may contain metallic components, both visible and hidden, which in the magnetic resonance...
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pediatric MRI brain imaging in children

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News | Pediatric Imaging | March 25, 2021
Study Reveals Rates of Brain Abnormalities in Healthy Children
March 25, 2021 — A large study of brain magnetic resonance imaging (MRI) scans from 11,679 nine- and ten-year-old...
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Gadopiclenol is a high-relaxivity macrocyclic contrast agent used for magnetic resonance imaging (MRI)
News | Contrast Media | March 24, 2021
Gadopiclenol has Positive Results for Phase III Clinical Trials 
March 24, 2021 — Guerbet announced positive results from two Phase III clinical studies comparing the diagnostic...
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