Featured Research

from universities, journals, and other organizations

Coronary CTA a cost-effective alternative to cardiac catheterization for the evaluation of CAD, study suggests

Date:
April 21, 2010
Source:
Thomas Jefferson University
Summary:
Noninvasive coronary computed tomography angiography (CTA) is a cost-effective alternative to invasive cardiac catheterization in the care of patients who have positive stress test results but a less than 50 percent chance of actually having significant coronary artery disease (CAD) according to a new study.

According to a study conducted at Thomas Jefferson University (TJU), non-invasive coronary computed tomography angiography (CTA) is a cost-effective alternative to invasive cardiac catheterization in the care of patients who have positive stress test results but a less than 50 percent chance of actually having significant coronary artery disease (CAD).

The study will be published in the May issue of the American Journal of Roentgenology. CAD is a narrowing of the blood vessels that supply blood and oxygen to the heart. If left untreated, it can lead to a heart attack.

"Patients with positive stress test results but no heart-related symptoms, as well as patients with a positive stress test with atypical chest pain often receive referrals for cardiac catheterization for the evaluation of CAD," said the study's lead author, Ethan J. Halpern, M.D., professor, Department of Radiology at Jefferson Medical College, and director, Cardiac CT at Thomas Jefferson University Hospital. "Coronary CTA is an alternative, non-invasive diagnostic imaging test that can be used to effectively triage these patients."

The study compared the false-negative rates, false-positive rates, costs, and radiation exposure of direct referral of patients for cardiac catheterization with the values associated with performing coronary CTA before catheterization.

"At a 50 percent prevalence of CAD, we found that performing coronary CTA before cardiac catheterization results in an average cost saving of $789 per patient with a false-negative rate of 2.5 percent and average additional radiation exposure of 1-2 mSv, which is minimal," said Dr. Halpern.

According to the study results, when a patient with an expected CAD prevalence less than 85 percent is found to have a positive stress test result, coronary CTA is a less expensive alternative to direct performance of cardiac catheterization. Recent studies have demonstrated that diagnostic cardiac catheterization of patients with atypical symptoms will demonstrate significant CAD less than half of the time. If the pretest probability of CAD is low, the coronary CTA findings are more likely to obviate cardiac catheterization and thereby reduce both the cost and effective radiation dose of the workup.

The study's co-authors also from Jefferson are: David C. Levin, M.D., professor, Department of Radiology; and Michael Savage, M.D., associate professor, and David Fischman, M.D., associate professor, both of the Division of Cardiology in the Department of Medicine.


Story Source:

The above story is based on materials provided by Thomas Jefferson University. Note: Materials may be edited for content and length.


Cite This Page:

Thomas Jefferson University. "Coronary CTA a cost-effective alternative to cardiac catheterization for the evaluation of CAD, study suggests." ScienceDaily. ScienceDaily, 21 April 2010. <www.sciencedaily.com/releases/2010/04/100421162617.htm>.
Thomas Jefferson University. (2010, April 21). Coronary CTA a cost-effective alternative to cardiac catheterization for the evaluation of CAD, study suggests. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2010/04/100421162617.htm
Thomas Jefferson University. "Coronary CTA a cost-effective alternative to cardiac catheterization for the evaluation of CAD, study suggests." ScienceDaily. www.sciencedaily.com/releases/2010/04/100421162617.htm (accessed July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Peace Corps Pulls Workers From W. Africa Over Ebola Fears

Peace Corps Pulls Workers From W. Africa Over Ebola Fears

Newsy (July 30, 2014) The Peace Corps is one of several U.S.-based organizations to pull workers out of West Africa because of the Ebola outbreak. Video provided by Newsy
Powered by NewsLook.com
Weather Kills 2K A Year, But Storms Aren't The Main Offender

Weather Kills 2K A Year, But Storms Aren't The Main Offender

Newsy (July 30, 2014) Health officials say 2,000 deaths occur each year in the U.S. due to weather, but it's excessive heat and cold that claim the most lives. Video provided by Newsy
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
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:
from the past week

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