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System Performance

Interpretation Note

Wait times have been impacted by reduced service delivery during the COVID-19 pandemic. Under the Chief Medical Officer of Health’s Directive #2 and Memorandum, from March 19 to May 26, 2020, health service providers and health service organizations including hospitals were directed to reduce elective surgeries and other non-emergency clinical activities to preserve capacity during the pandemic. To learn more about the impact on surgery and diagnostic imaging volumes, please click here.

To see the impact on volume for a specific procedure, please scroll down to the last section of this page to generate a graph for volume.

Wait times for diagnostic imaging

This is how long adult and pediatric (younger than 18) patients waited from the diagnostic imaging facility receiving the request from the patient's doctor to book a Magnetic Resonance Imaging (MRI) or Computerized Tomography (CT) scan, to the patient having the scan. Wait times are calculated after each patient has had their scan.


Only sites where the MRI or CT services are offered are available to search.

Provincial × Surgery

Patients with emergency conditions (Priority 1) are seen immediately. They are not included in wait times data shown here. The wait time is displayed for the larger health organization to which the hospital belongs. Even if MRI or CT services are not offered at the selected hospital, data will appear for the larger health organization.

Learn about priority levels and target times.

March 2020
All Patients Combined:

72%of patients were scanned within the target time

Priority 4 Patients:

Patients who should be scanned within a target time of 28 days

Waited on average


57% of patients were scanned within target time
Priority 3 Patients:

Patients who should be scanned within a target time of 10 days

Waited on average


57% of patients were scanned within target time
Priority 2 Patients:

Patients who should be scanned within a target time of 2 days

Waited on average


97% of patients were scanned within target time


Provincial × Surgery

Compare results across hospitals for the priority level selected:

Hospital name Average (Days)
Ontario 1
Markham Stouffville Hospital 0
North York General Hospital 0
Stevenson Memorial Hospital 0
Lakeridge Health 0
The Scarborough Hospital 0
Headwaters Health Care Centre 0
Campbellford Memorial Hospital 0
Cornwall Community Hospital 0
Hopital Montfort 0
Northumberland Hills Hospital 0
Queensway Carleton Hospital 0
Quinte Healthcare Corporation 0
Brant Community Healthcare System 0
Haldimand War Memorial Hospital 0
Hamilton Health Sciences Corporation 0
Joseph Brant Hospital 0
Trillium Health Partners 0
North Bay Regional Health Centre 0
Sault Area Hospital 0
West Parry Sound Health Centre 0
Collingwood General and Marine Hospital 0
Georgian Bay General Hospital 0
Royal Victoria Regional Health Centre 0
Bluewater Health 0
South Bruce Grey Health Centre 0
St. Joseph's Health Care London 0
St. Thomas-Elgin General Hospital 0
Strathroy Middlesex General Hospital 0
Windsor Regional Hospital 0
Woodstock General Hospital 0
St. Joseph's Health Centre Toronto 0
Toronto East Health Network 0
University Health Network 0
Cambridge Memorial Hospital 0
Groves Memorial Community Hospital 0
Sinai Health System 0
Humber River Hospital 1
Southlake Regional Health Centre 1
Brockville General Hospital 1
Hawkesbury And District General Hospital 1
Ross Memorial Hospital 1
Winchester District Memorial Hospital 1
Stratford General Hospital 1
London Health Sciences Centre 1
Niagara Health System 1
St. Joseph's Health Care System Hamilton 1
Halton Healthcare Services Corporation 1
Health Sciences North 1
Temiskaming Hospital 1
Timmins And District General Hospital 1
Muskoka Algonquin Healthcare 1
Orillia Soldiers' Memorial Hospital 1
Lake Of The Woods District Hospital 1
Riverside Health Care Facilities Inc. 1
Sioux Lookout Meno-Ya-Win Health Centre 1
Pembroke Regional Hospital Inc. 1
Renfrew Victoria Hospital 1
Alexandra Marine and General Hospital 1
Chatham-Kent Health Alliance 1
Grey Bruce Health Services 1
Tillsonburg District Memorial Hospital 1
St. Michael's Hospital 1
Sunnybrook Health Sciences Centre 1
Women's College Hospital 1
Grand River Hospital Corporation 1
University of Ottawa Heart Institute 1
Mackenzie Health 1
Kingston Health Sciences Centre 1
Perth And Smiths Falls District Hospital 2
Norfolk General Hospital 2

Percentage of patients whose CT scan was completed within the provincial target wait time, in Ontario, 201903 to 202003
201903 78.0
201904 76.0
201905 73.0
201906 73.0
201907 71.0
201908 72.0
201909 73.0
201910 72.0
201911 70.0
201912 70.0
202001 69.0
202002 72.0
202003 72.0


Data source: Wait Time Information System™ (WTIS™), Cancer Care Ontario. For more information, please visit the Indicator Library for the technical description of average time, volume, and percentage within target.

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