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Dual Source CT Scanner
A powerful new CT scanner at Cedars-Sinai produces images with twice the resolution in half the time, while exposing patients to less radiation than earlier-generation CT scanners.

"Our dual source, 64-slice CT scanner is twice as fast as traditional CT scanners, allowing for accurate diagnostic studies even if patients have rapid heart rates," said Daniel S. Berman, M.D., Chief of Cardiac Imaging and Nuclear Cardiology at S. Mark Taper Foundation Imaging Center. The scanner was installed at the imaging center in September.

(Pictured at left) Daniel Berman, M.D., with the dual source CT scanner

"With this device, beta blockers are not mandatory (to slow the heart rate), but we have found that image quality is better when they are used," he said.

The dual source CT scanner is equipped with two X-ray sources and two single X-ray source and detector configuration available in standard systems, making it much more powerful than other machines, Berman said.

The Cedars-Sinai scanner is one of two dual source CT scanners in California.

"The X-ray tubes are oriented at 90 degrees to one another, allowing us to obtain the 180 degrees of information required for tomography in half the time of a standard CT," Berman said. "Images are obtained in a mere 83 milliseconds, allowing us to capture three-dimensional pictures of a beating heart with clarity. Our early experience suggests that with the dual source scanner accurate coronary CT angiograms can be obtained even in the presence of atrial fibrillation."

Coronary CT angiograms are useful in a variety of circumstances, including patients who had equivocal stress test results, and patients with unusual symptoms indicating an intermediate likelihood of coronary artery disease.

"Obtained through generous donation to Cedars-Sinai Medical Center, the dual source CT scanner allows the cardiac imaging team to provide the best cardiac CT diagnoses to our patients," added Dr. Berman.

For more information, physicians can contact Dr. Berman at (310) 423-4223 or the Imaging Center at (310) 423-2228.