News | April 14, 2010

Cardiac SPECT Camera Reduces Time, Radiation

April 14, 2010 – The Mount Sinai Medical Center in New York has become the first facility in the United States to commercially use a new cardiac nuclear imaging system that drastically reduces imaging time and radiation exposure.

The new Discovery NM 530c single photon emission computed tomography (SPECT) scanner uses a cadmium zinc telluride (CZT)-based, high-speed, high-resolution camera.

“The device provides detailed pictures of the heart that enable Mount Sinai physicians to quickly and more accurately assess the location, extent, and severity of heart disease,” said Milena J. Henzlova, M.D., professor of medicine (cardiology), Mount Sinai School of Medicine. “The new CZT-based nuclear cameras have already made a big difference in evaluating our patients for coronary artery disease. In addition to significantly reducing patient radiation exposure and increasing the number of patients we can examine each day, this technology provides a cost-effective way for us to diagnose heart disease quickly and with confidence so that patients receive treatment sooner.”

With conventional nuclear cardiac imaging, patients must hold their arms above their head for two cardiac scans that take between 15-20 minutes each. With the Discovery NM 530c, the scanning time is reduced to three to five minutes for each scan. This reduction can be more comfortable for a patient, and it can possibly reduce imaging artifacts caused by patient movement. A shorter, more comfortable scan has the opportunity to improve image quality, allowing Mount Sinai clinicians to be more confident in their diagnosis.

At the recent American College of Cardiology annual scientific session in Atlanta (ACC.10), Dr. Henzlova and colleagues presented data showing that the new CZT camera technology also improves cardiac imaging while reducing radiation exposure. Patients in their study were divided into three groups based on the type of test they received to evaluate their heart health: a cardiac stress test with a low isotope dose; a cardiac stress test with a high isotope dose; and the traditional two part test where the patient is given a low dose of radiation while resting and a high dose during a stress test. Researchers compared the image quality using all three different isotope doses using the new camera.

Results showed that the proportion of patients with excellent or good image quality was similar in all three groups (91-98 percent). However, compared to the traditional testing in the rest-stress group, radiation was decreased on average by 70 percent in the low dose stress-only group and by 30 percent in the high dose stress-only group.

The scanner technology consists of four key elements:

• CZT detectors improve image resolution.
• Focused pin-hole collimation is used for improved detection efficiency, resulting in greater image clarity and speed.
• Stationary data acquisition is used to acquire all views simultaneously during a fully stationary SPECT acquisition. This huge decrease in moving parts virtually eliminates the risk of motion artifacts and significantly shortens scan times.
• 3-D reconstruction is used to generate accurate and easily interpretable images of the myocardial region.

The Mount Sinai Medical Center is the first laboratory in the United States to receive accreditation for the use of the camera from the Intersocietal Accreditation Commission. Mount Sinai currently has two Discovery NM 530c units in use.

For more information: www.mountsinai.org

Related Content

advanced visualization
News | Molecular Imaging | June 09, 2017
The Food and Drug Administration (FDA) has cleared syngo.via VB20 for Molecular Imaging (MI) from Siemens Healthineers...
News | SPECT-CT | June 08, 2017
Siemens Healthineers debuts Symbia Intevo Bold at the 2017 annual meeting of the Society of Nuclear Medicine &...
Sponsored Content | Videos | Nuclear Imaging | April 28, 2017
David Wolinsky, M.D., director of nuclear cardiology at Cleveland Clinic Florida and past-president of the American S
SPECT/CT Imaging Test Shown Accurate in Ruling Out Kidney Cancers
News | SPECT Imaging | April 24, 2017
The latest in a series of studies led by researchers at Johns Hopkins Medicine shows that addition of a widely...
brain SPECT imaging, dementia, depression, Daniel G. Amen

Representative brain SPECT scans in a patient with Alzheimer's dementia showing substantially reduced brain blood flow in the temporal and parietal lobes compared to a person with depression with mild decreased frontal lobe blood flow. Image courtesy of Amen Clinics.

News | SPECT Imaging | February 22, 2017
February 22, 2017 — Does a patient have depression or a cognitive disorder (CD) such as Alzheimer's disease or both?
News | Nuclear Imaging | December 12, 2016
Molecular Targeting Technologies, Inc. (MTTI) announces that response of colorectal cancer to treatment can be detected...
xSPECT Quant technology, SPECT/CT, Symbia Intevo, Siemens Healthineers, RSNA 2016
News | SPECT Imaging | December 06, 2016
December 6, 2016 — At the 102nd Scientific Assembly and Annual Meeting of the Radiological Society of North America (
Siemens Healthineers, Symbia Intevo SPECT/CT system, xSPECT Quant, RSNA 2016
Technology | SPECT-CT | October 18, 2016
October 18, 2016 — At the 2016 annual meeting of the Radiological Society of North America (RSNA 2016), Siemens Healt
PET/CT

There is a growing focus on early diagnosis and prevention. Here, PET/CT imaging is used to look inside the stress center of the brain.

Feature | Imaging | September 07, 2016 | By Kirill Shalyaev, Ph.D.
Advanced imaging and hybrid modalities, such as computed tomography (CT), magnetic resonance imaging (MRI), positron...
News | Radiopharmaceuticals and Tracers | September 06, 2016
Navidea Biopharmaceuticals Inc. announced that it has executed a Letter of Intent (LOI) with Cardinal Health for the...
Overlay Init