News | June 01, 2008

CTA Proves Most Effective, Cheapest Test for CAD in ER

June 2, 2008 - Computed tomography angiography (CTA) offers a way to more quickly and cost effectively identify patients at low-risk of cardiac problems like the blocked arteries that lead to heart attacks, according to new University of Pennsylvania School of Medicine research.

New research, presented by Anna Marie Chang, M.D., a physician in Penn's department of Emergency Medicine, at the annual meeting of the Society for Academic Emergency Medicine, on Thursday, May 29, 2008, in Washington, D.C., shows that CTA could be more effective than stress tests in diagnosing acute coronary syndromes.

Dr. Chang and her colleagues studied 568 Hospital of the University of Pennsylvania chest pain patients who were screened for acute coronary syndromes using high-resolution CT scans (CT angiography, or CTA). Negative scans - those showing no evidence of dangerous blockages in the coronary arteries - were found to be an accurate, quick method of identifying patients who are safe to be immediately discharged from the emergency department.

Thirty days after leaving the hospital, no patients in the study group who had negative CTAs died from cardiac related causes, had heart attacks or required the placement of cardiac stents to open blocked arteries. Previous studies, by comparison, have shown that stress testing - the traditional screening method - is associated with a high rate of return emergency room visits and hospital admissions.

Chang will also present findings showing that CTA is the quickest and least expensive way to identify patients at low risk of cardiac problems. Among 643 patients studied - split into groups which received immediate CTA, CTA following time in an observation unit, stress tests or telemetry monitoring following admission to the hospital - costs of care for CTA patients were less than half that of those who received the other tests.

CTA has been the subject of debate within the Center for Medicare and Medicaid Services, which has yet to make a decision on whether to pay for the test in emergency room settings. Costs for patients who received immediate CTA in the emergency department averaged about $1,240, while costs of stress testing and telemetry monitoring topped $4,000 for each patient. CTA also helped get low-risk chest pain patients home faster, potentially reducing emergency room crowding - study patients who received immediate CTA were discharged after an average of 8 hours, compared to more than 24 hours for those who received stress tests or were admitted for telemetry monitoring.

For more information: www.uphs.upenn.edu

Related Content

Baylor Scott White Heart Hospital Siemens Flash CT system used for dedicated cardiac CT scans, CCTA, CTA.
360 Photos | CT Angiography (CTA) | May 20, 2019
This is a 360 degree photo of a Siemens Somatom Force 64-slice, dual-source computed tomography (CT) system installed
HeartFlow Analysis Successfully Stratifies Heart Disease Patients at One Year
News | CT Angiography (CTA) | March 19, 2019
Late-breaking results confirm the HeartFlow FFRct (fractional flow reserve computed tomography) Analysis enables...
Aidoc Announces CE Mark for AI-based Pulmonary Embolism Workflow Tool
News | Computed Tomography (CT) | March 04, 2019
Artificial intelligence (AI) radiology solution provider Aidoc announced the commercial release of its CE-marked...
Researchers Awarded 2018 Canon Medical Systems USA/RSNA Research Grants
News | Radiology Imaging | November 13, 2018
The Radiological Society of North America (RSNA) Research & Education (R&E) Foundation recently announced the...
CT Offers Non-Invasive Alternative for Complex Coronary Disease Treatment Planning
News | CT Angiography (CTA) | October 16, 2018
A new study published in the European Heart Journal shows computed tomography (CT) can be a useful aid in heart team...

Image courtesy of Siemens Healthineers

Feature | CT Angiography (CTA) | September 06, 2018 | Dave Fornell
There have been a few big, recent advancements in cardiac computed tomography angiography (CCTA) imaging technology....
iSchemaView RAPID Technology Now Installed in More Than 500 Stroke Centers
News | Neuro Imaging | August 27, 2018
iSchemaView announced that more than 575 stroke centers in 22 countries have selected the RAPID advanced imaging...
Videos | Computed Tomography (CT) | July 25, 2018
A discussion with Patricia Dickson, LRT(CT), director of imaging and outpatient services, Capital Cardiology Associat