HOME >> MEDICINE >> NEWS
Size of myocardial infarct measured using MRI

In animal studies, researchers at Johns Hopkins have effectively used magnetic resonance imaging (MRI) to measure with 94 percent accuracy the size and amount of heart muscle damaged by a heart attack, known in medical terms as a myocardial infarct, or m.i., for short.

The Hopkins development, if confirmed in further pathology studies in humans, could standardize how physicians currently gauge the severity of a heart attack and a patient's chances for recovery. A variety of methods are currently used to determine the size of an infarct by MRI, such as visual cues, but these estimates have been shown in previous studies to overestimate damage by an average of 11 percent.

The researchers, whose findings will be published in the Journal of the American College of Cardiology online Dec. 21, hope to apply this information for determining more accurate dosing regimens for stem cell therapies currently under development, in which upwards of 200 million stem cells are injected directly into the damaged heart muscle.

"The size of a heart attack matters for determining how well a patient will recover from the trauma. Current methods for measuring the size of an infarct and assessing how much damage was done are highly subjective and arbitrary," said senior study author and cardiologist Joo Lima, M.D., associate professor of medicine and radiology at The Johns Hopkins University School of Medicine and its Heart Institute. "Indeed, a person who has suffered damage to more than 30 percent of the left ventricle of the heart is twice as likely to die within a year from the injury than someone who has suffered less damage, and bigger infarcts often require more aggressive drug therapy or, in the most severe cases, surgery to repair heart tissue or prevent further damage."

The Hopkins team measured the size of an m.i. in 13 dogs using eight different methods for analyzing pictures taken by a standard MRI, ranging from visual cues to v
'"/>

Contact: David March
dmarch1@jhmi.edu
410-955-1534
Johns Hopkins Medical Institutions
20-Dec-2004


Page: 1 2 3

Related medicine news :

1. Profiles of myocardial infarction among South Asian Canadians
2. No link between oral contraceptives and myocardial infarction
3. Mouse gene shows new mechanism behind cardiac infarction in man
4. Novel use of radiotracer reveals extent of mycoardial infarction damage
5. Effectiveness of drugs used to treat Parkinsons disease in early, later stages measured
6. Many children improperly measured in doctors offices
7. Indiana University researchers closer to helping hearing-impaired using stem cells
8. Tracking trends in cochlear implant complications using a federal database
9. Tumor-targeted immune cells cure prostate cancer in mice without causing systemic immune suppression
10. Over prescribing causing high rates of antibiotic resistance in south and east Europe
11. Bone density returns when teens stop using Depo Provera, Group Health study finds

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


(Date:8/31/2020)... ... , ... Just found out your dear friend has cancer? , It’s hard to hear your ... shares their diagnosis. Once the shock wears off, the questions and fears can be overwhelming. ... best ways to help? Words are failing me. I’m scared. I want to DO something. ...
(Date:8/31/2020)... ... August 31, 2020 , ... Colorado State University Global (CSU ... affordable online education – is proud to announce its new master’s degree in ... its kind in the nation, the 60-credit hour program is designed to provide ...
(Date:8/31/2020)... ... August 31, 2020 , ... In an effort to give back to ... 10 percent of each hotel room booked with a special new rate code to ... Indiana (RMHC-CNI) , effective immediately. Donations will be applied to any room type, ...
(Date:8/28/2020)... ... 28, 2020 , ... Ernst & Young LLP (EY US) ... Of The Year® 2020 Florida Award finalist. Now in its 34th year, the ... growth and prosperity as they build and sustain successful businesses that transform our ...
(Date:8/28/2020)... (PRWEB) , ... August 28, 2020 , ... Integrated ... Miami is the first Florida school to deploy its breakthrough Mobile Biodefense Indoor Air ... airborne COVID-19. True North Classical Academy plans to fully reopen equipped with the filtration ...
Breaking Medicine News(10 mins):
(Date:9/1/2020)... ... September 01, 2020 , ... While coronavirus cases continue to increase across ... and community organizations remain closed. Because about 80% of blood donations are made at ... blood donors and blood drive hosts to ensure blood products are readily available for ...
(Date:8/31/2020)... (PRWEB) , ... August 31, 2020 , ... If you live in New York City ... real estate part makes sense, it’s the law of supply and demand, but are plastic ... has a significant percentage of their patients that make the four-hour trip to have ...
(Date:8/28/2020)... (PRWEB) , ... August 28, 2020 , ... Dr. ... reproductive and endoscopic surgeon and serves as a clinical professor in the Department of ... of the American Laparoscopy Society & Pacific Coast Reproductive Society and is a Clinical ...
Breaking Medicine Technology:
Cached News: