What is an MRI Scan?
An MRI ( magnetic resonance imaging ) scan is a radiology imaging test which uses tuner waves , magnetics , and a computer to render images of different body structures . This is one of the secure and accurate imaging mental testing done for name different diseases and medical conditions .
What Does an MRI Scanner Look Like & How Does it Work?
The MRI scanner looks like a tube which is surrounded by a jumbo orbitual magnet . A moveable bed is present on which the patient is made to lie down down and this mesa then pass off into the magnet . A secure magnetic field is produced by the magnet that brings the proton of H atoms into coalition . All this then gets expose to a beam of wireless waves which ensue in spinning of unlike proton of the physical structure . This produces a faint signal which is picked up by the receiver part of the MRI digital scanner . A computing equipment process this receiver selective information which then leads to generation of an image . The answer of the image which is produced by MRI is very intricate and elaborated and can detect even minute changes of the structures inside the body . Contrast agents are used in some MRI scan procedures to increase the accuracy of the images .
What is the Purpose of the MRI Scan & When is it Used?
MRI scan is one of the most precise method of detecting disease in the body . MRI scan is the most commonly used imagery test after other examination method have break to leave sufficient information for verification of a patient ’s diagnosis .
MRI scan of the Head : Trauma / trauma to the mastermind need and MRI scan where it will aid detect any protuberance or haemorrhage . Other abnormalities which can be find with an MRI scan of the head include brain tumors , mastermind aneurysms , stroke and ignition or neoplasm of the spine .
MRI scan in Neurology : MRI scan is used by neurosurgeons in defining brain anatomy and also in assessing the integrity of the spinal corduroy after any injury . MRI scan is also used to detect or diagnose any problems related to vertebrae and the intervertebral disc of the spine .
MRI scan in Cardiology : MRI scan is also used for rating of the structure of the aorta and core , as it helps in sensing of ay tears or aneurysms . MRI scans however , are not the first line of imaging test in eccentric of trauma / hurt .
MRI scan in other system of rules of the torso : MRI scan supply worthful data regarding organs and glands present inside the venter . MRI scan gives accurate data about the body structure of the gentle tissues , marijuana cigarette and bones of the body . The results of the MRI scan give valuable input regarding whether operation can be execute or not .
What are the Risks, Side Effects & Benefits of an MRI Scan?
An MRI scan is a radiology imaging test which is not only painless , but also obviate vulnerability to cristal - ray radiation . As of now , there are no known or reported side effects or danger from MRI scan . MRI scan is not painful and since exposure to irradiation is not involved , this procedure can be done without any problems . However , there is a small theoretic risk to the fetus in the first trimester . For this reason , MRI scan should be avoided on pregnant adult female .
As the patients have to lie within a huge cylindric body structure , there is a chance that the patient can get claustrophobic during the procedure . Such patient who are at risk for feel claustrophobic should talk to their doctor beforehand so that they can be given a soft sedative to aid them relax . The MRI machine also tends to make a clanking dissonance when it is run , so this can be unpleasant to some affected role .
MRI scan has many welfare , as it gives accurate and accurate entropy in detecting any morphologic abnormalities present in the body .
What Should be Done Before the MRI Scan?
patient role should not wear anything and if there is any metallic jewelry or devices which the patient role is wear down , then the technician or the doctor should be notified before the MRI scan is done . This is because bearing of any metallic materials , strange material or surgical clips , metallic off-white plates , artificial joints or any prosthetic devices will significantly falsify the images which are generated by the MRI electronic scanner . Patients having alloy implants , warmness pacemakers or metal chips can not be scan using an MRI as there is danger that the magnet present in the MRI digital scanner will displace the alloy present within the torso . Likewise patient with metal ear implant , artificial heart valves , chemotherapy pumps , bullet fragments , and insulin pump can not undergo MRI scanning .
What Happens During an MRI Scan?
During the MRI scan , the patient role has to lie down in a closed area within a magnetised thermionic tube . As patients have to lie within an enclosed place , they may feel claustrophobic during the MRI scan procedure . Therefore , patients who have a previous account of claustrophobia should inform their doctors and the radiology faculty regarding this . Patient may be given a mild downer before the MRI scan to relax and to alleviate the claustrophobia . The MRI stave will be present near the patient during the MRI scan . Other than this , the patient will be able-bodied to communicate with the doctor and the staff with the use of goods and services of a doorbell ( or something like that ) so that patient can notify the concerned masses if he / she is unable to resist the MRI scan .
What is the Difference between an MRI scan and a CT scan?
How Does a Patient Prepare for an MRI Scan & How is it Performed?
Before the MRI scan is done , all metal objects from the patient ’s organic structure are removed . Sometimes , if the affected role is anxious or feels claustrophobic , then a mild sedative is given to serve the patient role unwind during the MRI scan . During the MRI scanning , the patient role needs to consist still otherwise the accuracy of the paradigm produced will be sham . Patient has to lie still within a closed surround within the MRI machine . It is important that the patient role breathe commonly and stay relaxed during the routine . Patient can interact with the MRI technologist throughout the trial run . During the MRI scanning , loud and insistent clicking noises can be heard as the scanning yield which is no cause for consternation for the patient . In some cases , patient is given intravenous contrast to help heighten the images from MRI scan .
What is the Duration of MRI Scan Procedure?
The length of the MRI scanning depends on the area of the body which require to be scan or study , however , the time taken for an MRI scan can range anywhere between 30 minutes to 1 and 1.5 hours .
When & How are the Results of the MRI Scan Available?
After the completion of the MRI scan , the computer produces optical images of the part of the organic structure which was scanned . These images are then channel to a moving-picture show ( tough copy ) . These moving picture are interpreted by a radiologist who is a physician peculiarly trained to interpret images of the body . The final interpretation from the radiotherapist is then transmitted to a report to the doctor who had requested the MRI scan for the patient . The physician then discourse the results with the patient and family members of the patient .
What does the Future of MRI scan look like?
Newer MRI scanner are being developed by scientist , which are more small and portable devices . These new MRI scanners are purportedly very utile in detecting tumor and infections of the soft tissue of the mitt , elbows , feet and articulatio genus . examination is still under process regarding the software of these new MRI scanner to medical practice .
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