What is an MRI Scan

What is an MRI Scan

Magnetic Resonance Image (MRI) is an examination doctors use through strong magnetic field and radio waves for the purpose of detecting, curing, and observing illness. An MRI is a method by which warning signs from internal organs are obtained and then analyzed by special computer programs. The radiologist is then able to interpret the results and find the underlying causes of possible diseases.

MRI Scan with Contrast Dye

In order to be more precise and acquire a clearer image a contrast dye can be added to a standard MRI scan. Physicians using this procedure will be provided with a reading of even the smallest tumors, should these be present. Additionally this procedure will allocate the exact position and size of potential tumors and the organs and tissues these might have affected. Moreover the radiologist will be able to identify malformations that would not show up on a customary scan, such as abnormal vessel blood flow.
The contrast dye used in these MRI Scans is generally gadolinium as complications are rarer in comparison to the Iodine origin dye used for x-rays and CT scans. Some people may develop an allergic reaction to the dye but these have been known to be exceptional and rare. Another drawback might be the fact that the contrast dyes are costly. An MRI with contrast dye would be essential in cases such as indentifying the multiplication or spread of a malignant mass in the brain, and the liver among other vital organs. The process involves the dye being absorbed by the growths or other deformities as it moves throughout the blood vessels making the infected organ flush.

MRI Scan with Contrast Dye Procedure

This method is normally simple and painless. The patient is placed on a table in a specific position so that the scan will show the affected part visibly and evidently. The discomfort is minor and present for the brief moment that the needle injection takes to insert the dye. The process will approximately take from 45 minutes to 2 hours during which the patient can listen to portable music or just relax.

Why Could an MRI Contrast Dye Save Lives

Many different medical conditions can be detected through these scans. They can identify an illness before it develops or more importantly save lives. These scans are thorough and specialize in revealing a more detailed overview in showing abnormalities in bones, soft tissue, blood vessels, the brain and the heart just to name a few.

What should I expect during cardiac computed tomography (CT)?

You should expect the following during your CT scan: You will change into a hospital gown and a nurse will insert an intravenous line in your arm to give you contrast (dye) during your procedure. You will lie on a special scanning table and will have electrodes placed on your chest. Some men may have to have a small area of their chest shaved to help the electrodes stick. These electrodes are attached to an electrocardiogram (ECG) monitor, which monitors your heart's electrical activity during the test. You will be asked to raise your arms above your head and you may feel the table move inside a donut-shaped scanner. You may be asked to hold your breath up to 30-40 seconds. It is very important to follow the directions of the technician. You will receive a contrast agent (radiographic dye) through the intravenous to help produce the images. You may observe a warm sensation as the contrast circulates through your body, but this will not last very long. Once the technologist is sure that the information is collected, the intravenous will be removed. The procedure itself takes about 15 minutes.

ini adalah contoh2 gambar mesin CT scan dan gambaran / bacaan keadaan jantung pesakit tersebut.. :)