Dr. Sebastian Charles Mafeld – Radiologist | Toronto, ON

Dr. Sebastian Charles Mafeld, a respected Radiologist, is committed to accurate image interpretation and patient safety in all imaging procedures. Practicing at medical facilities in Toronto, ON, he supports various clinical departments and adheres to the standards set by the College of Physicians and Surgeons of Ontario (CPSO). As a dedicated Radiologist, he provides comprehensive services in medical imaging to facilitate precise diagnosis and effective patient management.

Dr. Mafeld graduated with a Medical Degree from Newcastle University Faculty of Medical Sciences in 2009 in the United Kingdom. He has been practicing as a specialist in Radiology for over five years, since 2019. He is certified as a CPSO Recognized Specialist, ensuring his qualifications meet rigorous provincial standards and that he maintains ongoing professional development in the field.

With a professional and authoritative approach, Dr. Mafeld is committed to delivering diagnostic excellence within Toronto’s healthcare landscape. He communicates fluently in English and prioritizes accuracy and clarity in all interpretations, supporting referring physicians and patients alike in achieving optimal health outcomes.

• Ultrasound Interpretation (Sonography): Evaluation and reporting of diagnostic ultrasound images for assessing organs (e.g., liver, kidneys, thyroid, reproductive organs), blood flow, pregnancies, and musculoskeletal conditions.
• Mammography and Breast Imaging Interpretation: Expert review and reporting of mammograms (including tomosynthesis/3D mammography) and breast ultrasound for cancer screening, diagnosis, and follow-up.
• Magnetic Resonance Imaging (MRI) Interpretation: Specialized analysis and reporting of MRI scans, providing detailed images of soft tissues, brain, spine, joints, abdomen, and pelvis without using ionizing radiation.
• Fluoroscopy Procedure Interpretation: Interpreting real-time X-ray imaging (fluoroscopy) used during procedures like barium studies (GI tract), hysterosalpingograms, or to guide certain injections.
• Bone Densitometry (DEXA) Scan Interpretation: Analyzing DEXA scans to measure bone mineral density, assess osteoporosis risk, and monitor treatment effectiveness.

Note: This list provides an overview of common radiology services. Dr. Mafeld interprets a wide range of medical imaging studies and/or performs procedures as indicated by your referring physician. Specific subspecialty services depend on the physician's focus and training.

All medical imaging services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO).

Dr. Mafeld primarily practices at the Greenboro Family Medicine Centre located in the vibrant Kensington Market, Chinatown, and Grange Park neighborhood of Toronto. The clinic is conveniently situated near St. Lawrence Market and Nathan Phillips Square, making it accessible for patients across the city. Patients can reach the clinic easily via the Toronto Transit Commission (TTC), including subway, streetcar, and bus routes. The facility is wheelchair accessible. Parking is available at the facility.

Are imaging studies interpreted by Dr. Mafeld covered by Ontario Health Insurance Plan (OHIP) in ON?

Medically necessary diagnostic imaging studies interpreted by a Radiologist like Dr. Mafeld are typically covered by Ontario Health Insurance Plan (OHIP) in ON when prescribed by your referring physician and performed at an accredited medical facility. Some advanced or specialized interventional procedures may also be covered. It's always best to confirm specific coverage details with Ontario Health Insurance Plan (OHIP) or the imaging clinic/hospital.

Do I need a referral from my doctor to have an imaging study interpreted by Dr. Mafeld?

Yes, almost all diagnostic imaging tests (like X-rays, CT, MRI, ultrasounds) and interventional radiology procedures require a formal request or requisition from your family doctor, specialist, or other authorized healthcare provider. Dr. Mafeld provides expert interpretation of these physician-ordered studies.

What's the difference between an MRI and a CT scan?

Both are advanced imaging tests, but they use different technologies. CT (Computed Tomography) scans use X-rays and a computer to create detailed cross-sectional images; they are excellent for bone, lungs, abdomen, and detecting acute bleeding. MRI (Magnetic Resonance Imaging) uses a powerful magnetic field and radio waves to create highly detailed images of soft tissues like the brain, spine, joints, and internal organs, without using ionizing radiation. Dr. Mafeld or your referring doctor will determine which test is best for your specific medical question.

How long will my imaging test take?

The duration depends on the type of scan. A simple X-ray might take only a few minutes. Ultrasounds can range from 15 to 45 minutes. CT scans are usually quick once you're positioned (actual scan time is often under a minute), but total appointment time can be longer. MRI scans are typically the longest, often 30 to 60 minutes or more per body part being imaged.

Can I speak to Dr. Mafeld directly about my images?

Typically, the Radiologist's detailed report is sent to your referring physician, who is best positioned to discuss the results with you in the context of your overall health and other test findings. While direct consultation with the interpreting Radiologist is uncommon for routine diagnostic imaging, for Interventional Radiology procedures, Dr. Mafeld (if performing the procedure) would discuss it with you beforehand.

Greenboro Family Medicine Centre
Unit 201, 263 McCaul St
Toronto, ON M5T 1W7

Phone: (416) 340-4800

The facility is wheelchair accessible.

Dr. Mafeld is a licensed physician regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Medicine Act, 1991 in ON. Imaging services are typically provided based on referrals from other physicians.

Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/Mafeld-Sebastian-Charles/0317142-113075