MRI stands for Magnetic Resonance Imaging. When a patient is placed in the magnetic field inside the scanner and radio frequency is applied, certain nuclei of the patient’s body absorbs energy and releases subsequently (when the RF is terminated) to give MR signal. CLICK HERE to know about our equipment. Find below the 3T MRI FAQ ( Frequently Asked Questions )
Tesla (T) is the unit of measurement quantifying the strength of a magnetic field. Prior to the 3 Tesla Machine, the high-field standard was 1.5 Tesla. Our scanner generates a magnetic field that is twice the strength of 1.5 Tesla machines and 10 to 15 times the strength of low field or open MRI scanners.
3T MRI has a stronger magnet and makes better images of organs and soft tissue than other types of MRI do. It is used to make images of the brain & spine, chest & abdomen, the joints and other parts of the limbs along with blood vessels.
Most MRI scanners operate at a strength of 1.5 Tesla. A 3 Tesla MRI, however, operates at twice the normal strength, providing a greater signal-to-noise ratio, which is a major determinant in generating the highest quality image. The strength of a 3 Tesla MRI yields myriad benefits for radiologists and their patients
Pacemaker ( non MR compliant), cochlear implant, some of the metallic implants in the body etc. The titanium plates and pure stainless steel are however not contraindicated.
No. Unlike X-ray or CT scan there is no ionizing radiation involved in MRI. So repeated examinations, pediatric scanning or even obstetric examination (in later part of gestation) can be performed safely.
It is absolutely safe for children as there is no involvement of ionizing radiation. It can be done even in the newborn and can be repeated as required for follow up.
It depends on the part or number of parts to be examined. The usual time required is 15-20 minutes for one part.
Yes, patient can take his / her regular medicine before an MRI.
Usually there is no restriction of food. Empty stomach (6-8 hours fasting) is needed only for abdominal imaging and for MRCP.
Yes, provided the person doesn’t have any contraindication for entering into the magnet room.
There are multiple ways to alleviate claustrophobia. The common methods are feet first technique, audio-visual entertainment, sedation or anaesthesia in extreme cases.
Sometimes contrast is needed, less often than required in CT scan. MR contrast is made of Gadolinium compound and introduced intravenously. It is much less toxic than iodinated contrast and allergic reactions are infrequently met with.
Magnetic resonance imaging is absolutely safe within recommended clinical parameters. It doesn’t use ionizing radiation unlike CT Scan.
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