HOME >> MEDICINE >> NEWS
News tips from the 2005, 54th Annual Scientific Sessions of the American College of Cardiology

MODERN IMPLANTABLE HEART DEVICES SAFE FOR USE IN MRI SCANS
(Embargoed for release at 9 a.m. ET, Tuesday, March 8; Poster presentation #1116-58, Hall E1, Orange County Convention Center.)

Johns Hopkins scientists have found that modern, implanted heart devices such as pacemakers and defibrillators are safe for use in magnetic resonance imaging (MRI) machines, a diagnostic and imaging tool long ruled potentially unsafe and off-limits for more than 2 million Americans who currently have them in their bodies. The Hopkins team has also developed new guidelines for their use, making MRI scans more available to people who might benefit from early detection of cancer and other diseases, when treatments are most likely to succeed, and for guiding devices during minimally invasive surgery.

During a four-month period, the Hopkins team tested 18 different pacemakers and 15 implantable defibrillators previously found safe in animal experiments. In a study of 33 patients undergoing 38 separate scans, the researchers adjusted the device's pacing program and lowered MRI sequence energy levels to see if the scan affected the settings or caused any other kind of problem, such as heating of the electrical leads and surrounding tissue. All patients and devices were closely monitored during the scans, some of which lasted up to 1.5 hours, and repeat measurements were made on average 24 days after the MRI to measure any long-term complications. No ill effects were observed. The only complaint cited was claustrophobia, which is commonly associated with the close confines of the MRI scanner.

The researchers' new guidelines caution that only modern devices, predominantly models from the last seven years, are safe in MRIs and call for low-energy-level scans, avoiding scan settings higher than 2 watts per kilogram, which might lead to overheating. The protocol also advises close monitoring by a cardiologist and a radiologist, and usi
'"/>

Contact: David March
dmarch1@jhmi.edu
410-955-1534
Johns Hopkins Medical Institutions
8-Mar-2005


Page: 1 2 3

Related medicine news :

1. Feb. 15, 2005, Annals of Internal Medicine tip sheet
2. Feb. 1, 2005, Annals of Internal Medicine tip sheet
3. American Academy of Neurology presents 57th Annual Meeting in Miami Beach
4. Annual mammogram, doctor visits are enough for breast cancer follow-up
5. Rebuilding wounded veterans: Annual review of limb loss & prosthetics research
6. Leading researchers in allergic disease to gather for 2005 AAAAI Annual Meeting
7. New studies on Ritalin and Alzheimers Disease highlight ACNP Annual Meeting
8. NYU Child Study Center raises a record $3.4 million at Seventh Annual Child Advocacy Award Dinner
9. New tipifarnib (R115777) data in AML presented at American Society of Hematology Annual Meeting
10. Advances in plasma physics at Annual APS Meeting
11. Advances in plasma physics at Annual APS Meeting

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/13/2017)... ... October 13, 2017 , ... Lori R. Somekh, founder of the ... national organization of elder law and special needs planning attorneys. “Membership in ElderCounsel helps ... provides a forum to network with elder law attorneys nationwide,” said Somekh. , ...
(Date:10/13/2017)... ... 2017 , ... Many families have long-term insurance that covers care for a ... waiver for care if the client has a cognitive impairment diagnosis. , “What ... is often waived, so the benefits from their insurance start immediately,” said Mechell Vieira, ...
(Date:10/13/2017)... York, NY (PRWEB) , ... October 13, 2017 , ... ... influential people in business to advocate for action towards gender equality at their inaugural ... views from around the globe, and reached a social audience of over 3 million. ...
(Date:10/13/2017)... ... 13, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of ... popular and least understood books in the Holy Scriptures, Revelation. The Book of Revelation ... scholars for centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... Software Development, has been awarded a contract by the Center for Medicare and ... aims to accelerate the enterprise use of Agile methodologies in a consistent and ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)... received FDA 510(k) clearance in May 2017 for its highly anticipated ... for endoscopy environments. An innovative secondary monitor solution, ZeroWire Mobile ... the improvement of patient outcomes, procedural efficiency, and the lowering of ... ... By ...
(Date:10/7/2017)... 6, 2017   Provista, a proven leader ... billion in purchasing power, today announced a new resource ... The Newsroom is the online home for case ... expert bios, news releases, slideshows and events. ... wealth of resources at their fingertips, viewers can also ...
(Date:10/4/2017)... , Oct. 4, 2017  South Korean-based healthcare product ... training aide "cprCUBE" on Kickstarter. The device will educate ... cardiac arrests with better efficiency compared to the dated ... real-time feedback on efficacy of the compression for a ... has a goal to raise $5,000. ...
Breaking Medicine Technology:
Cached News: