Access Your Medical Imaging with GNMI MRI & CT & PocketHealth

Most services covered under OHIP require a doctor’s referral or requisition form. Without a referral, certain services can be paid out-of-pocket. Patients may self-refer for services offered under the Ontario Breast Screening Program (OBSP), if they meet additional criteria.

Most imaging services are covered under OHIP with a referral, but some services are not covered by OHIP, and therefore must be paid for by the patient. 

GNMI MRI & CT Imaging will send your results to your referring physician, typically within a week of your test. For quicker access, you can use PocketHealth to easily view and share your results, often before your follow-up appointment.

GNMI offers a broad spectrum of imaging services at locations across the Niagara region and the outer GTA, including Ajax, Grimsby, Hamilton, Mississauga, Niagara Falls, St. Catharines, Stratford, and Welland. 

However, CT and MRI services are only available at the Ajax and Mississauga locations. You can find the addresses of these two clinics above under ‘Location details.’ For all other GNMI sites in the Niagara region, you can visit this page.

Most of GNMI’s services require a doctor’s referral. They also offer specific private pay services like coronary CT angiograms and whole body MRIs, as well as uninsured services such as chest X-rays for immigration purposes. You can book an appointment directly through their website, or by contacting an individual clinic directly using the phone number found under “Location details” above. 

GNMI X-ray services are walk-in procedures and DO NOT require an appointment.

Your images and report will be sent to your referring physician, who may set up an appointment to discuss them with you.

You can securely access your results prior to your follow-up appointment with PocketHealth. PocketHealth also offers tools to help you better understand your results and personalized insights based on your report.

GNMI stands for Greater Niagara Medical Imaging.

To diagnose injury or illness, doctors may order CT scans (also known as CAT scans) or MRIs to get more detailed images of your body’s internal structures and tissues.

Computed tomography (CT) scans use multiple low-dose X-rays to create cross-sectional images. The examination table moves through a donut-shaped array that rotates around to take X-rays, which are then compiled into a detailed 3D image. 

A magnetic resonance imaging (MRI) scan uses radio waves and a strong magnetic field to create images. The exam table is inserted into a machine that uses magnets to temporarily move the body’s protons out of alignment. A computer measures the energy released when the protons realign and compiles those results into images.

CT scans are better at capturing defined images of the hard structures of the skeletal system, while MRI scans provide clearer images of soft tissues like muscles, ligaments and tendons.

You can learn more about the differences between PET, CT and MRI scans here.