'Slice' scanner latest advance in early detection of heart disease

September 30, 2002

DALLAS, Oct. 1 - An advanced imaging technique - multislice spiral computed tomography (MSCT) - is a reliable, noninvasive way to detect blockages in the coronary arteries, according to a study in today's rapid access issue of Circulation: Journal of the American Heart Association.

"Multislice spiral CT, combined with effective heart-rate control, seems to provide an accurate noninvasive alternative to conventional angiography, which is performed by threading a catheter near the heart and injecting a dye directly into the arteries around the heart," says lead author Koen Nieman, M.D., of the departments of cardiology and radiology at Erasmus Medical Center in Rotterdam, the Netherlands. Some study participants were given beta blockers to slow down their heart rate, thus allowing the scanner to get better images of the heart.

"Because multisclice spiral tomography coronary angiography is safer, requires no hospital admission and involves less patient discomfort, it will become a very suitable alternative in an increasing number of patients with chest pain and suspected coronary heart disease. Earlier detection will improve the treatment of these blockages and may prevent future problems," he says.

In the past decade, considerable progress has been made in noninvasive imaging with MRI, electron beam computed tomography (EBCT), and, most recently, MSCT. During MSCT, a contrast dye is injected through a vein in the arm while the scanner rotates around the body. The reconstruction of multiple cross-sectional slices, or images, is synchronized to the rhythm of the heart using an electrocardiogram (ECG). The resulting three-dimensional images are displayed on a monitor. Earlier generation, four-slice scanners had problems with consistent image interpretability and long scan time. The latest versions of MSCT are able to detect up to 16 images at once, with increased speed and accuracy.

Nieman and colleagues compared the latest 16-slice scanner to conventional angiography. They performed MSCT and then angiography on 59 patients with suspected heart disease. The patients, 53 of whom were male, were between ages 46-70. Thirty-four patients were given beta blockers. Two independent experts reviewed the scans and compared them to angiography. Classification of patients as having no, single, or multivessel disease was accurate in 78 percent of patients and no patients with significant obstructions were incorrectly excluded. "Although no direct comparisons to MRI and EBCT have been conducted, they seem to be outperformed by MSCT with respect to identifying blockages in the coronary arteries," he says.
Co-authors are F. Cademartiri, M.D.; P.A. Lemos, M.D.; R. Raaijmakers, R.T.; P.M.T. Pattynama, M.D., Ph.D.; and P.J. de Feyter, M.D., Ph.D.

For journal copies only, please call: (214) 706-1396

For other information, call: Carole Bullock: 214-706-1279 or Bridgette McNeill: 214-706-1135

American Heart Association

Related Angiography Articles from Brightsurf:

AI helps detect brain aneurysms on CT angiography
A powerful type of artificial intelligence known as deep learning can help physicians detect potentially life-threatening cerebral aneurysms on CT angiography, according to a new study.

Pulmonary embolism and COVID-19
Researchers at Henry Ford Health System in Detroit say early diagnosis of a life-threatening blood clot in the lungs led to swifter treatment intervention in COVID-19 patients.

Patients with intermediate left main disease experience worse cardiovascular events
A new study shows that when compared with patients without intermediate left main coronary artery disease, those with intermediate left main disease have greater risk of cardiovascular events.

SCAI issues expert consensus on managing patients with out of hospital cardiac arrest
The Society for Cardiovascular Angiography and Interventions (SCAI) has released an expert consensus statement describing recommendations for the management of patients with out-of-hospital cardiac arrest (OHCA).

Ultra-wide field retinal imaging techniques cannot be used interchangeably
For the evaluation and treatment of diabetic eye disease, research from the Joslin Diabetes Center's Beetham Eye Institute has now shown that one technique, UFW fluorescein angiography, detects over three times more microaneurysms than UWF color imaging.

Selective coronary angiography following cardiac arrest
In the current issue of Cardiovascular Innovations and Applications volume 4, issue 2, pp.

Sometimes, a non-invasive procedure will suffice
When a patient complains about chest pain, diagnosis will usually involve catheter angiography to evaluate the adequacy of blood supply to the heart.

New study evaluates transcatheter dialysis conduit procedures over 15 years
A new research study by Harvey L. Neiman Health Policy Institute found that utilization of invasive procedures on hemodialysis conduits -- artificially constructed shuts used by many individuals who require dialysis -- increased markedly from 2001 through 2015 for nephrologists and declined for radiologists.

First prospective registry confirms FFR impact treatment plans for patients with CAD
A prospective, multicenter, multinational study examines how fractional flow reserve (FFR) can impact treatment plans and outcomes in patients with stable coronary artery disease (CAD) or acute coronary syndrome (ACS).

Imaging beyond the angiogram in women with suspected MI and no obstructive CAD
In the current issue of Cardiovascular Innovations and Applications volume 4, issue 1, pp.

Read More: Angiography News and Angiography Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.