3405 8288
256-Slice Dual-Source Computed Tomography (CT)
A CT scan is an imaging technique where the CT machine takes a quick series of Xray pictures of the target area. The large, doughnut shaped part of the machine, named the gantry, is fitted with X-Ray tubes and detectors, used to capture X-Ray data of the patient lying on the patient bed. The X-Ray data taken will then be compiled by sophisticated software to form high resolution images of the patient’s body that let the doctor see if any problems are present. CT scans images are helpful in displaying accurate morphology of bones, organs and tissues, which could help indicate the size and location of abnormalities, allowing your doctor to diagnose the problem.
Instrument
Our centre has incorporated the Siemens SOMATOM Definition Flash 256-slice Dual-Source CT Scanner into our services at the Specialists, which is an advanced CT scanner that uses X-ray tubes and detectors to create high-resolution images. The scanner has a rotation time of 0.28 seconds, which is among the fastest on the market. Compared with previous models, it takes less time, provides a more precise image and uses a lower dose of radiation.
Advantages:
|
・ |
Redefining Cardiac Scan |
|
|
When performing a cardiac scan, this 256-slice CT scanner's scan time is only 0.6 sec and the full temporal resolution is 75ms, much faster than the 64-slice scanner. This scanner allows scanning the entire heart and evaluating its morphology and coronaries without any beta blockers. Patients suffering from irregular heart rates or atrial fibrillations can benefit from it, as the risk of drug allergy and examination time are both minimised. |
|
|
|
|
・ |
Reduced Intravenous Contrast Requirement |
|
|
With rapid volumetric coverage, the duration of vascular contrast opacification required for image acquisition is significantly reduced. This could benefit patients with renal impairment and decrease the risk of contrast-induced nephropathy. |
|
|
|
|
・ |
Much Less Time for Scanning |
|
|
Some examinations require an adequate breath-hold. With older scanners, many patients, especially children and the elderly, struggle to maintain the required breath-hold, resulting in uninterpretable images and a possible repeat scan. This scanner takes only 0.6 sec for the entire chest scanning at its full speed. Breath holding can therefore become optional. |
|
|
|
|
・ |
Less Radiation Dose |
|
|
With Dual Source technology and the Stellar Detectors, the SOMATOM Definition Flash sets the benchmark for dose efficiency. Even if patients cannot hold their breath or weigh up to 90 kg, radiation exposure is less than what is considered standard for diagnostic cardiac catheteri-zation. Such high speed and low dose values make CT Angiography a viable option for early detection of coronary artery disease.
Patients with heart diseases will be exposed to 60 percent less radiation in the 256-slice CT scanner than other previous models. Some studies found that it can even reduce radiation exposure by 90 percent. |
|
|
|
|
|
|
|
CT Carotid Angiogram VRT |
CTA VRT |
