20-35 minute.
The length of the exam depends on the type of study being performed. 1  MRI of the Brain … 20-45 minute scan time. 2  MRI of the Orbits … 20-35 minute scan time. 3  MRI of the TMJ … 45-60 minute scan time. 4  MRI of the Soft Tissue Neck … 25-35 minute scan time. 5  MRI of the Cervical Spine The length of MRI examinations can vary from 15 minutes to 1 1/2 hours, averaging 45 minutes. ChaCha! [ Source: http://www.chacha.com/question/how-long-does-a-mri-take ]. I've had 3 or 4 MRI's, they take about 40 or so minutes. Your head goes in first and the top of the tube is about 2 inches from your face. If you are claustrophobic I would suggest that you keep your eyes closed and just listen to the radio on the headset. The scan will take 30 to 90 minutes. Preparation and sedation take an additional 60 minutes. The length of time depends upon the part of the body being scanned. https://www.med.virginia.edu/internet/radiology/pediatrics/pediatrics-mri-scan.cfm. A really long time, maybe half an hour, that you can't move you head. A single scan may take from a few seconds to three or four minutes. You may be asked to hold your breath during short scans. Depending on the size of the area being scanned and how many images are taken, the whole procedure will take 15 to 90 minutes. If contrast material is needed, the technologist will put it in an intravenous (IV) line in a vein in your arm or hand. The material may be given over 1 to 2 minutes. Then more MRI scans are done. An MRI test usually takes 30 to 60 minutes but can take as long as 2 hours.
http://www.advancedimagingofmt.com/index.php?page=mri-faq http://www.themedicalquestions.com/Med/how-long-does-a-mri-take.html http://www.healthboards.com/boards/back-problems/313950-how-long-does-mri-take.html http://www.themedicalquestions.com/Med/how-long-does-a-mri-take.html http://www.nhs.uk/Conditions/MRI-scan/Pages/How-is-it-performed.aspx http://www.webmd.com/brain/magnetic-resonance-imaging-mri-of-the-head?page=3
how long does an mri take for your back