News | April 21, 2014

First U.S. Patient Receives MRI Scan in Clinical Study of St. Jude MRI-Compatible Pacemaker

Providence Saint Joseph Medical Center announces first scan in study

First U.S. Patient MRI Scan Clinical Study MRI-Compatible Pacemaker Accent MRI

April 21, 2014 — Providence Saint Joseph Medical Center in Burbank, Calif., is the first hospital in the nation to conduct a magnetic resonance imaging (MRI) scan of a patient implanted with a new MRI-compatible pacemaker — a breakthrough because metal implants often exclude patients from this imaging because of the strong magnetic force.

Cardiothoracic surgeon Raymond Schaerf, M.D., implanted the Accent MRI Pacemaker and Tendril MRI Lead in Karolyi Fenyvesi, 82, of Burbank, who successfully underwent magnetic resonance imaging.

Led by Schaerf, Providence Saint Joseph was part a global clinical study to help determine if a patient can safely and effectively undergo a full-body, high-resolution MRI scan with the Accent MRI system.

Many patients with pacemakers and defibrillators need MRI studies to help with their care and diagnoses, said Schaerf, a leader in the study of MRI use on patients with implanted devices including pacemakers and defibrillators. The Accent pacemaker was designed to be compatible with MRI, often the preferred diagnostic tool for some medical conditions such as cancer, stroke, spine and neurological disorders.

"We have been privileged to have done more than 400 MRI studies through an FDA-approved study over the last six years, but are restricted in what studies can be performed," Schaerf said. "With this device and system, we have made a great leap forward, and in this patient actually did an MRI of the heart, with no problems and no artifacts on the scan caused by metal."

Cardiac pacemakers are used to help treat abnormal heart rhythms. In this clinical study, a pacemaker is implanted to help treat a patient with bradycardia, a dangerously slow heart rate. A pacemaker helps monitor the heart and provides electrical stimulation when the heart beat is too slow.

The investigational Accent MRI pacemaker and Tendril MRI lead can be used for full-body scans without any anatomical restrictions because of technology designed to protect a patient from the risks associated with an MRI environment.

More than 60 million MRI scans are performed each year around the globe. Pacemaker patients typically are discouraged from receiving MRI scans because their pacing system may be affected during the scan.

The Accent MRI Pacemaker and Tendril MRI lead, developed by St. Jude Medical, are available in Europe and Japan. In March 2012, St. Jude Medical received conditional investigational device exemption approval from the U.S. Food and Drug Administration (FDA) to start enrollment in this clinical study.

For more information: www.california.providence.org.

Related Content

Hyperfine Research, Inc. announced that it has received U.S. Food and Drug Administration (FDA) 510(k) clearance for the world’s first bedside Magnetic Resonance Imaging (MRI) system

Hyperfine's point-of-care MRI wheels directly to the patient’s bedside, plugs into a standard electrical wall outlet, and is controlled via a wireless tablet. Photo courtesy of Business Wire

News | Magnetic Resonance Imaging (MRI) | February 12, 2020
February 12, 2020 — Hyperfine Research, Inc. announced that i
The magnetic resonance imaging (MRI) contrast agents market is expected to grow rapidly

Image courtesy of GE Healthcare

News | Magnetic Resonance Imaging (MRI) | February 11, 2020
February 11, 2020 — The magnetic resonance imaging (MRI) contrast agents market is expected to grow rapidly in the fo
Gadolinium-based contrast agents

UT Dallas faculty members who collaborated with Dr. Jeremiah Gassensmith (center, back), associate professor of chemistry and biochemistry, include Dr. Lloyd Lumata (left, back), assistant professor of physics, and Dr. Steven Nielsen, associate professor of chemistry. Chemistry graduate students in Gassensmith’s lab include (from left, front) Oliva Brohlin, Arezoo Shahrivarkevishahi and Laurel Hagge.

News | Contrast Media | February 06, 2020
February 6, 2020 — University of Texas at Dallas researchers
Qynapse, a medical technology company, announced that it received U.S. Food and Drug Administration (FDA) 510(k) clearance for its QyScore software
News | Information Technology | February 04, 2020
February 4, 2020 — Qynapse, a medical technology company, anno
RSNA 2019

RSNA 2019

Feature | Radiology Imaging | January 31, 2020 | By Greg Freiherr
The founder of Gonzo journalism thought
This image is of an 80 kg woman with a newly diagnosed IDH-wildtype glioblastoma

This image is of an 80 kg woman with a newly diagnosed IDH-wildtype glioblastoma. The quarter dose image on the left was obtained after the administration of 4 ml of MultiHance. Subsequently, an additional 12 ml of MultiHance was administered and the cumulative full dose image in the center was obtained. The image on the right was rendered following artificial intelligence processing of the 4 ml image using eGad genetic algorithms. This image has the quality of triple dose gadolinium even though only one quarter dose gadolinium was given.

Feature | Contrast Media Injectors | January 30, 2020 | By Matthew Kuhn, M.D., FACR
Gadolinium-based contrast agents (...
The researchers used high resolution cross-sectional imaging with CT or MRI to assess 225 men with abdominal aortic aneurysm. Follow-up lasted, on average, more than three years.  Slightly more than half of patients had an intraluminal thrombus. The aneurysms of those with intraluminal thrombus were larger at baseline and grew by a rate of 2 mm per year, twice as fast as the 1 mm per year growth rate in people without intraluminal thrombus.
News | Computed Tomography (CT) | January 29, 2020
January 29, 2020 – The presence of a blood clot on the wall of the aorta in people with...
Gadolinium based contrast dye in brain MRI

Gadolinium contrast agents (GBCAs) are partly retained in the brain, raising safety concerns, as seen in this MRI.

News | Contrast Media | January 17, 2020
January 17, 2020 — Bracco Diagnostics Inc., the U.
MR Solutions cryogen free preclinical MRI
News | Magnetic Resonance Imaging (MRI) | January 09, 2020
January 9, 2020 — MR Solutions is continuing to expand its support network