New study proves DSCT reduces heart scan dose

A new study shows that, compared to traditional computer tomography (CT), dual source CT (DSCT) can significantly reduce the radiation dose of cardiac scan.

This study also shows that the use of DSCT diagnosis of Vascular Stenosis may obtain and DSA angiography similarly excellent accuracy. In Switzerland Zurich University Hospital, 120 patients with suspected coronary artery disease by Siemens medical development of the world's first with dual x-ray tube of CT scanner-SOMOATOM Definition, and use the latest Adaptive heart step scan technology Adaptive Cardio Sequence — a first-time application of dual source CT heart stepping scan mode (step-and-shoot). The study results published in the Official Journal of the United Kingdom cardiovascular Association "heart" of the 6 monthly *.

Angiography is a can be used to check the diagnosis of myocardial infarction.

Typically, you can use heart catheterization of x-ray angiography device and computer tomography (CT) system to do this check; if you use CT radiation dose, is a problem. Zurich University researchers want to know how to use CT Angiography, the use of radiation dose can be reduced. So research group adopts Siemens developed the world's first with dual x-ray tube computer tomography system SOMATOM Definition on 120 patients with suspected coronary artery disease.

Researchers also adopts Siemens recently developed apply to all SOMATOM Definition scanner Adaptive heart step scan technology "Adaptive Cardio Sequence."

This technique to step scan-based, based on the ECG accurate forecasting out next heart diastolic, capture image data only in the heart of diastolic completed, in order to reduce unnecessary radiation, Adaptive heart step scan technology "Adaptive Cardio Sequence" Adaptive Cardio Sequence and 83 milliseconds of DSCT maximum time resolution organically and improves the reliability of the technology, while further significantly reduced radiation dose.

"Research shows that 70 BPM heart rate in patients with stable, DSCT stepper scan mode for coronary angiography may be uncompromising diagnostic images.

Relative to the previous use of CT coronary imaging mode, DSCT also allows to reduce significantly the radiation dose. We research the average effective dose 2.5 mSv ± 0.8 mSv. According to written records, General Cardiac CT scan average effective radiation dose in 9 mSv-21mSv. "Switzerland Zurich University Hospital diagnostic radiology radiation expert Dr. Hatem Alkadhi.

Adaptive heart step scan technology "Sequence" with Adaptive Cardio with step scan step-and-shoot using intelligent algorithm, you can monitor the heart rate, if necessary on the arrhythmia in response, for example periods of contraction, irregular heartbeat.

If this occurs, the scan will be automatically postponed will avoid accidental movement causes the image to appear error and, if need be slightly widening acquisition time Windows, therefore, Adaptive heart Cardio stepper scanning techniques Adaptive Sequence can substantially increase Cardiac CT scan of the reliability of step.

"Siemens, patient safety has always been the focus of the CT development.

At the same time, we believe we have the greatest responsibility is to provide the best possible diagnosis doctor image quality, support they maximize workflow efficiency. It is precisely because this objective and sustained development, Siemens has become the market leader in CT technology. "Siemens Medical CT Dept. CEO Dr. Sami Atiya pointed out:" therefore, rely on innovation to reduce radiation dose and increase diagnostic image quality is essential for us. This is our current development applies to DSCT Adaptive heart Cardio stepper scanning technology for Adaptive Sequence. Zurich University Hospital studies show that Adaptive heart Cardio stepper scanning technology and Adaptive Sequence of the organic combination of dual source CT can substantially reduce cardiac scan required radiation dose. ”