Countless numbers of patients ask what is a CT scan as much as others would like to know what is MRI and the differences cutting between the two. It is common to find many people trying to find out what is a CT scan for and further which one of the two is better.
MRI (Magnetic Resonance Imaging) scan employs strong magnetic fields and radio frequency pulses to generate comprehensive pictures of body organs, soft tissues, bones and other internal body structures. This answers the question of what is MRI for. The distinction flanked by normal and abnormal tissue is a lot distinct on an MRI picture as compared to a CT (Computed Tomography) scan.  And while radiation is not present in an MRI scan, it can be a noisy examination that takes much time than CT.
Unlike MRI scans which use powerful magnetic fields, a CT scanner conveys X-ray beams through the human body as it progresses all the way through an arc taking numerous pictures.  A CT scan conveys alternating heights of density and tissues within a stable organ and can present comprehensive facts about the human body which includes the head (brains, eyes and interior points of the ear), chest (heart and lungs), skeletal framework, (neck, shoulders and vertebral column), pelvis and hips reproductive system, bladder and intestines.
Recent improvement in CT scanning entails the enhanced patient comfort, quicker scanning process and high resolution pictures. As the scanning process is quickened, the X-ray exposure is reduced thus giving better images at lesser doses. In fact the typical CT scan in the present day renders patients to low radiation as compared to what airline passengers get while on long flights. This is why every patient pursuing CT scans ought to speak with their medical doctors about this subject of the risks that are encountered while being exposed to radiation versus the advantages of early examination.
Which one is better, MRI or CT scan? 


This highly depends on which part of your body the doctor is interested in observing and preferably the intention of the examination. For instance, doctors will ask for CT scanning whenever they would like to have a diagnosis of the muscle tissues or check a bone malfunction, check for tumors, fractures or blood clots. Hemorrhage in the brain from an accident can be checked better on a CT scanner than an MRI. Patients from brutal accidents where the internal body organs are damaged, a CT scan is prescribed over MRI. On the other hand when a doctor is interested in analyzing your tendons and ligaments then MRI stands out. The spinal cord is best seen on MRI pictures due to the definite density of the body tissues.
Finally, when going through a medical examination, CT, MRI or any other scan, can be a difficult moment for anyone. It is imperative to attain comfort by consulting your doctor whenever you have questions ahead of the process.  Find out on various considerable factors like, fasting before the procedure, the length of the scan, allergic reactions and effects on pregnant mothers.