Imaging technology plays a vital role in the disease diagnosis. It enables doctors to view the inside of the body, which was not possible otherwise. Many injuries and diseases that damage the body can only be adequately treated if the doctor knows the extent of the damage. This focal role is played by the field of radiology.
There are several different types of imaging techniques, and each is equally important. The salient ones are MRI, CT scan and X-rays. Whereas the last two bear some similarity in technique, MRI is based on an entirely different principle. Mostly, the choice of the test tends to be specific to the type of ailment and the level of granularity required.
Nonetheless, regardless of the technique used, the quality of the image is extremely important in all cases. While the caliber of the radiologist is important, however, the most significant contributor in radiology is the underlying technology used. Obsolete technology will not cut it in any test. Therefore, anyone requiring an MRI in Lahore should ensure that the lab is equipped with the latest machines.
However, other than knowing which lab to look for, anyone getting an MRI should also be aware of other practical aspects of the test. The following succinct guide about MRI will be of great help!
What is MRI?
Magnetic resonance imaging uses the radio waves and magnetic field to construct the images from the inside of the body. These cross-sectional images are produced when the strong magnetic waves cause the proton of the hydrogen atoms in the body to align. This movement produces signal which is collected up by the sensor, and these then are used by the computer to construct an image.
The MRI machine is a hollow cylindrical structure, in which the flat bed (carrying the patient) can be slid in and out of. Inside of the machine, strong magnets are present to generate the magnetic field. In it of itself, the procedure is not at all invasive and painful.
When does one need an MRI?
Your doctor is the best judge of when an MRI is needed. However, there are certain common ailments for which the procedure is carried out. Liver, heart, GI, vascular diseases and different cancers are evaluated using MRI. It is also used to gauge the effectiveness of a treatment, for example, it is used to observe the shrinking of the tumor post-radiation therapy.
What are the safety measures involved in MRI?
Unlike CT scan and X-ray, MRI does not involve exposure to harmful radiations, hence, it is safer than the alternatives. Moreover, MRI can be performed on pregnant women, although preferably not during the first trimester –unless there is no other choice. Some people who suffer from claustrophobia might not be comfortable being cooped up in such close quarters. However, they can be given sedatives if needed.
Most of the times, patients need contrast material for image clarity, but some people can be allergic to it.
How should you prepare for an MRI?
For the attire; be sure to wear loose and comfortable clothing, however, some might have to wear a hospital gown eventually. Due to the presence of strong magnetic, do not wear any metallic jewelry or accessory. Those with metallic implants. devices etc. in their bodies should inform the radiology team of their prior condition as there are certain cases where they pose a problem.
Moreover, women who are pregnant or likely to be should let the medical staff know about their condition. People who have had surgery before or are suffering from kidney disease should inform the team accordingly. Whether to eat or not prior to the test depends on the policy of the lab, so be sure to call them before getting an MRI in Karachi. After the test is done, patient is free to go. However, children and claustrophobic patients who were sedated might need a bit long to recover.
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