Navigation Links
MRIs could become powerful tools for monitoring cholesteral therapy
Date:10/14/2011

MAYWOOD, Il. -- MRI scanning could become a powerful new tool for assessing how well cholesterol drugs are working, according to Loyola University Health System cardiologist Binh An P. Phan, MD.

Phan is co-author of an MRI study of patients who had recently begun taking cholesterol medications. The study found that intensive treatment with cholesterol drugs significantly reduced the amount of cholesterol in artery-clogging plaque. The study is published in the Journal of the American College of Cardiology: Cardiovascular Imaging.

Cholesterol is the raw material in the buildup of plaque, which leads to atherosclerosis (hardening of the arteries). The process can cause blocked arteries that can trigger heart attacks, strokes and other cardiovascular problems.

Imaging technologies traditionally used to monitor cardiovascular disease, such as angiograms and ultrasounds, show the overall size of the plaque buildup. In the new study, MRI scans were more precise, showing the amount of cholesterol within the plaque.

The study was conducted at the University of Washington, where Phan completed a cardiovascular clinical and research fellowship. The study included 120 patients who were randomly assigned to receive one of three cholesterol treatments: Lipitor; Lipitor plus Niaspan (extended-release niacin); or Lipitor plus Niaspan and colesevelam.

After three years, the 33 patients with identified carotid plaques had a significant reduction in the cholesterol within the plaque. The volume of cholesterol dropped from 60.4 cubic millimeters to 37.4 millimeters, and the percentage of plaque volume consisting of cholesterol dropped from 14.2 percent to 7.4 percent.

(The scans were done on patients' carotid arteries in the neck, rather than on their coronary arteries. Carotid arteries are easier to image because they are closer to the surface of the body, and do not move as much as coronary arteries of a beating heart. Since atherosclerosis occurs in blood vessels throughout the body, plaque buildup in carotid arteries is a good representation of what is occurring in coronary arteries.)

The findings confirmed the researchers' hypothesis that the reason why cholesterol medications shrink the overall size of the plaque is because cholesterol is being removed from within the plaque. Thus, using MRI scans to monitor the amount of cholesterol in plaque may help doctors to better determine how well cholesterol medications are working. If an MRI showed cholesterol was not being reduced, more aggressive therapy might be needed, Phan said.

"In the future, MRI scans may become important and powerful tools to see how medication therapy is working inside arteries," Phan said. "However, our study is just the first step. Additional studies will be needed."


'/>"/>
Contact: Jim Ritter
jritter@lumc.edu
708-216-2445
Loyola University Health System
Source:Eurekalert

Related medicine news :

1. Could Discrimination Help Trigger Illness in Blacks?
2. Permanently dismal economy could prompt men to seek more sex partners
3. Stem cells from cord blood could help repair damaged heart muscle
4. Rising Global Smoking Rates Could Add Millions of TB Deaths
5. Study could help improve gene therapy for heart disease, cancer
6. Chocolate Could Be Sweet Defense Against Stroke
7. Battle between the placenta and uterus could help explain preeclampsia
8. Jonesing for java: Could caffeine use predict risk for cocaine abuse?
9. New method to diagnose sinusitis could reduce use of antibiotics
10. Marijuana component could ease pain from chemotherapy drugs
11. Anemia Could Add to Surgical Risks
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... Apple Rehab Shelton Lakes , which specializes ... of the facility as part of a disaster drill on October 3rd. , Apple ... Shelton City Emergency Manager, as well as the Connecticut Long Term Care Mutual ...
(Date:10/13/2017)... RIDGE, N.J. (PRWEB) , ... October 13, 2017 , ... ... annual Holly Day Market. Featuring a collection of specialty vendors and unique items from ... of personalized and quality-focused health and wellness services offered by the VNA. The ...
(Date:10/13/2017)... NJ (PRWEB) , ... October 13, 2017 , ... Global ... at scenic Alexandria Park in Milford, NJ. This free event, sponsored by Global ... physical activity. The fun run is geared towards children of all ages; it ...
(Date:10/13/2017)... ... October 13, 2017 , ... Talented host, actor Rob Lowe, ... in a new episode of "Success Files," which is an award-winning educational program ... investigates each subject in-depth with passion and integrity. , Sciatica occurs when the ...
(Date:10/13/2017)... ... 2017 , ... “The Journey: From the Mountains to the Mission Field”: the ... in the Philippines. “The Journey: From the Mountains to the Mission Field” is the ... She has taught all ages and currently teaches a class of ladies at her ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... DIEGO , Oct. 12, 2017   Divoti USA ... Alert Jewelry up to the standard of the latest FDA requirements, ... June 2017). Anyone in need of Medical ID jewelry ... Medical Alert Jewelry are engraved in terms of the ... Divoti ...
(Date:10/11/2017)... Texas , Oct. 11, 2017  True ... services, has amplified its effort during National Breast ... about hereditary cancer risks. ... of Clinical Oncology calculated that more than 10 ... have inherited mutations in BRCA1 or BRCA2 and have ...
(Date:10/7/2017)... --  Provista, a proven leader in the supply ... power, today announced a new resource area on Provistaco.com ... is the online home for case studies, articles on ... releases, slideshows and events. ... at their fingertips, viewers can also watch short videos ...
Breaking Medicine Technology: