Featured Research

from universities, journals, and other organizations

Contrast agent guidelines help prevent debilitating disorder

Date:
May 17, 2011
Source:
Radiological Society of North America
Summary:
A simple blood test may help prevent a serious complication associated with a contrast agent commonly used in MRI exams, according to a new study.

A simple blood test may help prevent a serious complication associated with a contrast agent commonly used in MRI exams, according to a study published in the July issue of Radiology.

Related Articles


Within the past five years, use of gadolinium-based contrast agents (GBCA) has been linked to the development of nephrogenic systemic fibrosis (NSF), a rare disorder mainly affecting patients with severe kidney disease. But since 2008, restrictive GBCA administration guidelines implemented by Massachusetts General Hospital have proven effective in preventing NSF.

"It is important for the public to know that gadolinium products are safe for most patients and the risk of NSF should not deter them from GBCA-enhanced exams, such as MRIs," said the study's lead author Hani H. Abujudeh, M.D., M.B.A., associate professor of radiology at Harvard Medical School in Boston.

NSF is characterized by widespread tissue fibrosis. Patients with NSF experience an increase of collagen in the tissues, causing thickening and hardening of the skin of the extremities, and often resulting in immobility and tightening or deformity of the joints. NSF can develop rapidly and may result in patients becoming wheelchair-bound within just a few weeks. In some cases, there is involvement of other tissues, including the lungs, heart, diaphragm, esophagus and skeletal muscle.

Massachusetts General Hospital began implementing restrictive GBCA guidelines in May 2007 in order to protect patients from possibly developing NSF. The guidelines require that a blood test be done on patients over age 60 or at risk for kidney disease. The blood test measures how well the kidneys are doing. That number is then converted via a formula to estimate the glomerular filtration rate (eGFR), which measures the rate of fluid flow through the kidneys. The guidelines stipulate a maximum GBCA dose of 20mL for patients with a low eGFR (below 60 mL/ min/m2). GBCA should not be administered at all to patients currently undergoing dialysis treatment or with a very low eGFR (below 30 mL/min/ m2).

For the study, Dr. Abujudeh and colleagues reviewed the hospital's medical records during the pre-guideline and transition period (January 2002 through December 2007) and the post-adoption period (January 2008 to March 2010). Prior to adoption of the guidelines and during the transition period, 113,120 contrast-enhanced MRI exams were performed, and 34 cases of NSF were subsequently identified. During the post-guideline period, 52,954 contrast-enhanced MRIs were performed with no new cases of NSF identified.

"The findings prove that these guidelines are effective," Dr. Abujudeh said, "and that strategies can be put into practice to ensure patient safety."


Story Source:

The above story is based on materials provided by Radiological Society of North America. Note: Materials may be edited for content and length.


Journal Reference:

  1. Yingbing Wang, Tarik K. Alkasab, Ozden Narin, Rosalynn M. Nazarian, Rathachai Kaewlai, Jonathan Kay, Hani H. Abujudeh. Incidence of Nephrogenic Systemic Fibrosis after Adoption of Restrictive Gadolinium-based Contrast Agent Guidelines. Radiology, 2011; DOI: 10.1148/radiol.11102340

Cite This Page:

Radiological Society of North America. "Contrast agent guidelines help prevent debilitating disorder." ScienceDaily. ScienceDaily, 17 May 2011. <www.sciencedaily.com/releases/2011/05/110517073938.htm>.
Radiological Society of North America. (2011, May 17). Contrast agent guidelines help prevent debilitating disorder. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2011/05/110517073938.htm
Radiological Society of North America. "Contrast agent guidelines help prevent debilitating disorder." ScienceDaily. www.sciencedaily.com/releases/2011/05/110517073938.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins