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.

Early diagnosis of cancer is one of the highest-priority problem for the healthcare system, because it is critical for overall treatment success and saving patients' lives. Diffusion-weighted magnetic resonance imaging (DWI) may be used to detect a malignancy in various tissues and organs. It has the advantage of providing insight into the diffusion of water molecules in body tissues without exposing patients to radiation.

DWI of the phantom with polyvinylpyrrolidone (PVP) solutions (b value 500 s/mm2). Image courtesy of Kristina Sergunova et al.

News | Magnetic Resonance Imaging (MRI) | June 02, 2020
June 2, 2020 — Early diagnosis of cancer is one of the highest-priority problem for the healthcare system, because it...
AIR Recon DL delivers shorter scans and better image quality (Photo: Business Wire)

AIR Recon DL delivers shorter scans and better image quality (Photo: Business Wire).

News | Artificial Intelligence | May 29, 2020
May 29, 2020 — GE Healthcare announced U.S. FDA 510(k) clearance of AIR Recon DL. This pioneering technology, using a...
United Imaging's uMR OMEGA is designed to provide greater access to magnetic resonance imaging (MRI) with the world’s first ultra-wide 75-cm bore 3T MRI.
News | Magnetic Resonance Imaging (MRI) | May 27, 2020
May 27, 2020 — United Imaging's uMR OMEGA is designed to provide greater access to magnetic resonance imaging (MRI)...
A new technique developed by researchers at UC Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from normal tissue. The team created a probe that generates two magnetic resonance signals that suppress each other until they reach the target, at which point they both increase contrast between the tumor and surrounding tissue

A new technique developed by researchers at UC Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from normal tissue. The team created a probe that generates two magnetic resonance signals that suppress each other until they reach the target, at which point they both increase contrast between the tumor and surrounding tissue. Image courtesy of Xiandoing Xue, UC Davis

News | Magnetic Resonance Imaging (MRI) | May 26, 2020
May 26, 2020 — Researchers at the University of California, Davis offers a significant advance in using magnetic...
Researchers from Tokyo Metropolitan University have surveyed the amount of gadolinium found in river water in Tokyo. Gadolinium is contained in contrast agents given to patients undergoing medical magnetic resonance imaging (MRI) scans, and it has been shown in labs to become toxic when exposed to ultraviolet rays. The researchers found significantly elevated levels, particularly near water treatment plants, highlighting the need for new public policy and removal technologies as MRI become even more commonp

Samples were taken along rivers around Tokyo. Measurements of rare earth element quantities indicate a clearly elevated amount of gadolinium compared to that in natural shale. Graphics courtesy of Tokyo Metropolitan University

News | Magnetic Resonance Imaging (MRI) | May 26, 2020
May 26, 2020 — Researchers from Tokyo Metropolitan University have surveyed the amount of gadolinium found in river...
Advanced imaging data exchange is now live in Colorado due to the partnership of Health Images and the Colorado Regional Health Information Organization

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News | Radiology Business | May 18, 2020
May 18, 2020 — CORHIO, a health information exchange in Colorado enabling data exchange for its 19,000+ users,...
Experimental Protocol and Representative MRI of Brains at Various Key Points in That Protocol.

Experimental Protocol and Representative MRI of Brains at Various Key Points in That Protocol. (A) Experimental timeline. (B) Representative T2WI (using an 11.7T MRI) of the brain of a postnatal day (PND) 11 pup, 1 day after inducing left HII and prior to hNSC transplantation. Note the beginning of an increasingly intense “water signal” (white) on the left (“HII lesion”). (C) Representative T2WI (using an 11.7T MRI) 3 days post-HII, shortly after implantation of SPIO pre-labeled hNSCs into the contralateral cerebral ventricle (“Lateral Vent”). Note the “HII lesion” on the left becoming hyperintense (white) and the black signal void of the SPIO-labeled hNSCs in the lateral ventricle (black arrow). Red arrows denote the needle track. In contrast to what occurs in the intact brain (Figure S4), in a brain subjected to left HII, the implanted SPIO-labeled hNSCs (black signal void) (black arrow) migrate from the right (“R”) to the left (“L”) hemisphere to enter the lesion. (D and E) Shown here (using a 4.7T MRI) are SPIO-labeled hNSCs (black signal void) (black arrow) at 1 month post-implantation into the contralateral ventricle (D) and, in the same representative animal, at 3 months post-implantation (E)–stably integrated and surrounding a much-reduced residual lesion, with no interval enlargement of the graft or ventricles.

News | Magnetic Resonance Imaging (MRI) | May 13, 2020
May 13, 2020 — Scientists at Sanford Burnham Prebys Medical Discovery Institute and Loma Linda University Health have...
Axial (A) and coronal (B) CT of the abdomen and pelvis with IV contrast in a 57-year-old man with a high clinical suspicion for bowel ischemia. There was generalized small bowel distension and segmental thickening (arrows), with adjacent mesenteric congestion (thin arrow in B), and a small volume of ascites (* in B). Findings are nonspecific but suggestive of early ischemia or infection.

Axial (A) and coronal (B) CT of the abdomen and pelvis with IV contrast in a 57-year-old man with a high clinical suspicion for bowel ischemia. There was generalized small bowel distension and segmental thickening (arrows), with adjacent mesenteric congestion (thin arrow in B), and a small volume of ascites (* in B). Findings are nonspecific but suggestive of early ischemia or infection. Image courtesy of RSNA

News | Coronavirus (COVID-19) | May 11, 2020
May 11, 2020 — Patients with COVID-19 can have bowel abnormalities, including ischemia, according to a new study...
Whole body diffusion-weighted magnetic resonance imaging (DW MRI) may aid in the assessment of cancer treatment response in children and youth at much lower levels of radiation than current approaches, suggests a small study funded by the National Institutes of Health.
News | Pediatric Imaging | May 05, 2020
May 5, 2020 — Whole body diffusion-weighted magnetic resonance imaging (DW MRI) may aid in the assessment of cancer...
Figure 4 for the study. Images of a 65-year-old man (patient 6). (a) Cardiac MRI perfusion shows perfusion deficit of anterior/anterolateral wall attributed to left anterior descending artery/left circumflex artery (*). (b) CT coronary angiography. (c) Coronary angiography, left anterior oblique projection with caudal angulation. (d) Three-dimensional image fusion helped refine diagnosis: perfusion deficits (*) were most likely caused by narrow first diagonal branch and its first, stented side branch.

Figure 4 for the study. Images of a 65-year-old man (patient 6). (a) Cardiac MRI perfusion shows perfusion deficit of anterior/anterolateral wall attributed to left anterior descending artery/left circumflex artery (*). (b) CT coronary angiography. (c) Coronary angiography, left anterior oblique projection with caudal angulation. (d) Three-dimensional image fusion helped refine diagnosis: perfusion deficits (*) were most likely caused by narrow first diagonal branch and its first, stented side branch (arrowhead). Retrospectively, denoted lesion could also be found at CT coronary angiography and coronary angiography (arrowheads in b and c, respectively). CT FFR = CT-derived fractional flow reserve, LGE = late gadolinium enhancement. Image courtesy of RSNA, Radiology.

News | Cardiac Imaging | May 04, 2020
May 4, 2020 – A new technique that combines computed tomography (CT) and magnetic resonance imaging MRI can bolster...
This imaging technique will enable scientists to understand how the sodium behaves as it interacts with different anode and cathode materials
News | Magnetic Resonance Imaging (MRI) | April 30, 2020
April 30, 2020 — Magnetic resonance imaging (MRI) can provide an effective way of supporting the development of the...
Two people together in an MRI Scanner along with the accompanying image of their brains

Two people together in an MRI Scanner along with the accompanying image of their brains. Image courtesy of Ville Renvall/ Aalto University

News | Magnetic Resonance Imaging (MRI) | April 30, 2020
April 30, 2020 — Researchers at Aalto University and Turku PET Centre have developed a new method for simultaneous...
#COVID19 #Coronavirus #2019nCoV #Wuhanvirus #SARScov2

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News | Coronavirus (COVID-19) | April 24, 2020
April 24, 2020 — The Food and Drug Administration (FDA or the Agency) plays a critical role in protecting the United...
#gadolinium Guerbet announced that it received U.S. Food and Drug Administration (FDA) approval to manufacture Dotarem (gadoterate meglumine) injection at its Raleigh, N.C., facility
News | Interventional Radiology | April 21, 2020
April 21, 2020 — Guerbet announced that it received U.S. Food and Drug Administration (FDA) approval to manufacture...
Collaboration offers clinicians a personalized oncology solution that combines cutting-edge MRI-guided radiation therapy with a leading AI-driven EMR integration platform
News | Radiation Oncology | April 01, 2020
April 1, 2020 — ViewRay, Inc. announced a strategic collaboration with VieCure, an artificial intelligence (AI)...
#COVID19 #Coronavirus #2019nCoV #Wuhanvirus #SARScov2 A brief article from Henry Ford Health System in Detroit, published today in Radiology, reports on the first presumptive case of COVID-19–associated acute necrotizing hemorrhagic encephalopathy.

A, Image from noncontrast head CT demonstrates symmetric hypoattenuation within the bilateral medial thalami (arrows). B, Axial CT venogram demonstrates patency of the cerebral venous vasculature, including the internal cerebral veins (arrows). C, Coronal reformat of aCT angiogram demonstrates normal appearance of the basilar artery and proximal posterior cerebral arteries. Image courtesy of the Radiological Society of North America (RSNA)

News | Coronavirus (COVID-19) | March 31, 2020
March 31, 2020 — A brief article from Henry Ford Health System in Detroit, published today in Radiology, reports on the...
Videos | Coronavirus (COVID-19) | March 27, 2020
Regina Druz, M.D., FASNC, a member of the American Society of Nuclear Cardiology (ASNC) Board of Directors, chairwomen...
RSIP Vision, a global leader in artificial intelligence (AI) and computer vision technology, announced a new innovative AI-based solution for 3-D reconstruction of knees from X-ray images
News | Artificial Intelligence | March 18, 2020
March 18, 2020 — RSIP Vision, a global leader in artificial intelligence (AI) and computer vision technology, announced...
M. Minhaj Siddiqui, M.D., associate professor of surgery at the University of Maryland School of Medicine, discusses benefits of MRI-targeted biopsy to more precisely diagnose aggressive prostate cancers

M. Minhaj Siddiqui, M.D., associate professor of surgery at the University of Maryland School of Medicine, discusses benefits of MRI-targeted biopsy to more precisely diagnose aggressive prostate cancers. (c) University of Maryland Greenebaum Comprehensive Cancer Center

News | Prostate Cancer | March 05, 2020
March 5, 2020 — Using a combination of magnetic resonance imaging (MRI) to target and sample suspicious prostate tissue...
MR Solutions’ dry magnet MRI system for molecular imaging on display at EMIM 2020
News | Magnetic Resonance Imaging (MRI) | February 28, 2020
February 28, 2020 — MR Solutions will be displaying its latest dry magnet 3T to 9.4T preclinical, multi-modality MRI (...