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May 21, 2007
New Siemens software helps to correct cardiac fibrillations
Worldwide,
five percent of all people over the age of
65 suffer from atrial fibrillation. While cardiac arrhythmia can
be treated with medication, patients have to take it
for the rest of their lives. Ablation therapy offers
an alternative: myocardial cells in the left atrium are
obliterated to interrupt the problematic pathway. However, every patient
is different. For this reason, electro physiologists have to
be able to discern the size and shape of
the left ventricle in precise detail during the intervention.
Syngo DynaCT Cardiac provides the necessary support: the software
from Siemens Medical Solutions provides three-dimensional displays of the
ventricle. The physician is able to view the 3-D
object from all sides – even during an intervention.
During the examination, with the press of a button
syngo DynaCT Cardiac delivers CT-like slice images of an
organ in motion using an angiographic C-arm system. During
the intervention, the physician simply moves the C-arm in
a semicircle around the patient and – optionally ECG-triggered
– acquires a defined number of projections. As with
a CT scanner, these projections are then reconstructed into
slice images and a 3D representation, which are sent
to the monitor at the angiography system.
Using the
new software, the electrophysiologist can create clinical acquisitions at
the precise moment they are needed – during the
intervention. The physician previously had to rely on clinical
images taken the day before or during the patient’s
last visit, usually with a CT or MRI system.
However, the state of organs can change continually. Images
may be already obsolete the following day, but the
physician has to use them as the basis for
planning the intervention.
Since its market introduction in 2004,
the researchers at Siemens Medical Solutions have continued development
of the syngo DynaCT software and expanded its areas
of application. In addition to neuroradiological acquisitions, physicians can
use syngo DynaCT to generate soft tissue images of
the entire body and detect tumors. Syngo DynaCT Cardiac
also displays the heart for the first time. “This
is a milestone in the short but very successful
history of syngo DynaCT. Once again, the software has
shown its use across a wide range of applications,
maintaining its position in interventional radiology and beyond,” said
Dr. Norbert Gaus, the head of the Angiography, Fluoroscopy,
and Radiographic Systems division at Siemens Medical Solutions. Syngo
DynaCT Cardiac can be used with Siemens angiography systems
with flat detectors.
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