Toronto General Hospital
Medical Imaging Leadership
Our Services
Computed Tomography (CT)
Hours of Operation:
Monday to Friday
8:00 a.m. – 11:00 p.m.
- CT uses a pencil-thin X-ray beam to take detailed pictures inside the body.
- CT can be used to study all parts of the body.
- From CT images, colourful three-dimensional pictures of organs can be created.
General Radiography (X-ray)
Hours of Operation:
Monday to Friday
8:00 a.m. – 5:00 p.m.
- X-rays are the oldest and most frequently used form of medical imaging.
- X-rays use small amounts of radiation to produce images of bones and internal organs.
- It’s non-invasive and helps physicians diagnose and treat medical conditions.
Interventional Radiology
Hours of Operation:
Monday to Friday
8:00 a.m. – 4:00 p.m.
- Interventional radiology offers some of the most minimally invasive, targeted treatments available.
- It uses X-rays, Ultrasound, CT and other imaging to advance a catheter in the body.
- IR treatments allow for lower risk, less pain, and shorter recovery time.
Magnetic Resonance Imaging (MRI)
Hours of Operation:
24 hours, 7 days a week
- MRIs produce pictures of the body using powerful magnets and radio waves.
- MRI is a non-invasive procedure.
- Blood flow and organ motion can be measured with MRI.
- Unlike CT or PET scans, MRI does not use radiation to take an image.
Positron Emission Tomography MRI (PETMR)
Hours of Operation:
Monday to Friday
9:00 a.m. – 5:00 p.m.
- PETMR combines technology from both molecular imaging and MRI.
- Images produced from injection of radiopharmaceutical are combined with MRI images.
- This new technology currently is used in research trials.
- PET scans your body using a small amount of radioactive suger to help find certain diseases early.
- PET scans can also help show how well your treatment is working.
Molecular Imaging (Nuclear Medicine)
Hours of Operation:
Monday to Friday
8:00 a.m. – 5:00 p.m.
- Nuclear medicine uses small amounts of radioactive material, called radiopharmaceuticals, to aid diagnosis.
- The radiopharmaceutical emits energy from the body, which is picked up by a Gamma Camera.
- It’s safe and typically non-invasive.
Radiopharmacy
Hours of Operation:
Monday to Friday
5:30 a.m. – 4:00 p.m.
- The radiopharmaceuticals used in nuclear medicine are manufactured every day in our centralized radiopharmacy.
- Radiopharmacy or nuclear pharmacy is a specialized type of pharmacy dedicated only to compounding and dispensing radiopharmaceuticals for nuclear medicine procedures.
Ultrasound
Hours of Operation:
Monday to Friday
8:00 a.m. – 9:00 p.m.
- Ultrasound uses sound waves to see the inside of the body in real-time.
- It allows examination of organs, soft tissues and blood vessels.
- Common uses include examination of the uterus, liver, thyroid, heart—the list goes on!