What Is The Difference Between Mri And Ct Scan
Olivia Luz
What is the difference between a ct scan and an mri.
An mri on the other hand can take up to 30 minutes. Unlike x rays and ct scans mris don t use any radiation. The biggest difference is that mris magnetic resonance imaging use radio waves and ct computed tomography scans use x rays. The ct scan is cheaper than the mri.
Since ct scans use radiation they carry greater risks. Ct scan is the favoured style for cancer abnormal chest x rays and pneumonia. A ct scan uses x rays to create detailed pictures of organs bones and other tissues. An important difference between ct scan and mri is related to the effects they create on the body.
A ct scan uses x rays whereas an mri scan uses strong magnetic fields and radio waves. To know more about the differences between the mri and cat scan refer to the table below. A large ct machine will synthesize the images to form three dimensional computerized models of the body. The cost of the procedure is even higher if a contrast dye is used.
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Perpetual help medical center las pinas has recently acquired a state of the art ct imaging machine somatom drive with a dual source ct scanner dsct which provides a high quality three dimensional. The ct scan is a more donut shaped device compared to the mri which is practically longer. Ct scans are widely used in emergency rooms because the scan takes fewer than 5 minutes. To give you an idea the mri costs twice as much as the price of a ct scan.
The person lies on a table that moves through a scanning ring which looks like a large doughnut. An mri or magnetic resonance imaging uses a powerful magnet to pass radio waves through the body. Ct scans are more common and less expensive but mri scans produce more detailed images. An mri typically costs more than a ct scan.
The ct scan is the best procedure to use when visualizing cancer pneumonia the chest cavity and brain hemorrhages while the mri is the best to use when examining the spinal cord ligaments tendons and tumors. The data collected can be assembled to form three dimensional images.
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