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HeartCam is a safe, simple FDA-approved imaging system
that uses Imatrons proprietary EBCT technology. It performs a diagnostic
scan of the heart that can detect early signs of heart disease long before
the patient experiences a single symptom. HeartCam uncovers the presence
of coronary calcium, a proven "clinical marker" for coronary
artery disease and utilizes a calcium scoring system to determine the
level of risk.
The simplest comparison is to an EKG. The patient remains
clothed removing only metal items that might interfere with the HeartCam
(such as bra, belt, metal buttons). A technologist attaches three EKG
leads to the chest to establish a heart rate. Theres no prep, no
injected dye, no medication and no discomfort. While lying stationary
on a table, the patient holds his breath while a powerful electron beam
is generated and then focused onto one of four tungsten target rings positioned
beneath the patient. Each 210 degree sweep of the electron beam produces
a continuous 30 degree fan beam of x-rays that pass through the patient
to a stationary array of detectors which generates cross-sectional images.
It takes just a few breathholds to complete the test. Start to finish
this non-invasive procedure takes about 10-15 minutes.
The acronym stands for Electron Beam Computed Tomography.
Two of those words Computed Tomography (CT, the CAT scan) are familiar.
The Electron Beam is what has turned this technology into such a fantastic
diagnostic tool for cardiac risk assessment. Its ultra-fast
more than 20 times faster than the traditional CT and the results
are much more accurate and useful.
HeartCam takes images of the heart in such rapid succession
-- generally about 40-50 in one 25-second breathhold, that it captures
3-dimensional images of the heart while it is beating. EBT can detect
the presence of calcium in the arteries. Until now, there has been no
reliable test to visualize blocked arteries, the main cause of coronary
heart disease. Standard diagnostic tests such as x-ray, ultrasound, MRI
(Magnetic Resonance Imaging) and traditional CT scans do no detect the
presence of calcium in the arteries. Start to finish this non-invasive
procedure takes about 10-15 minutes.
The HeartCam medical team verifies all results and issues
a report within 24 hours of the procedure. The consulting physician determines
the presence and extent of early coronary artery disease, if any, and
uses calcium quantification software to calculate the total amount of
coronary artery calcification. The physician will discuss the implications
with you. You may simply be warned of risk factors and educated about
how to lessen your risk. If the HeartCam reveals a significant risk, you
will be referred to your physician or to a cardiologist for further evaluation.
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