Your heart is a powerful muscle that pumps oxygen-rich blood and nutrients through the body. Over the course of a day the heart beats over 100,000 times and pumps about 2,000 gallons of blood, making the cardiovascular system a complex and important part of your overall health.
Any condition that affects the function of the heart is considered heart disease. Coronary artery disease (CAD), or atherosclerosis of the coronary arteries, is the most prevalent in Canada. Substances that normally circulate in your blood, including calcium, fat and cholesterol, can collect to form a plaque along the wall of the coronary arteries. Plaque buildup can cause these arteries to become narrow, stiff, or blocked, decreasing blood flow to the heart and resulting in injury to the heart muscle. If left untreated, it might lead to heart failure or a severe heart attack.
Early warning signs could include chest pain, fatigue, and dizziness. Depending on the seriousness of your symptoms, your doctor could order a number of tests to investigate their cause. Often this involves medical imaging, such as:
CT and MRI are both important diagnostic tools which play critical roles in evaluating heart health and diagnosing CAD.
A coronary computed tomography angiography (CCTA) can be used to non-invasively examine the coronary arteries. Using a combination of X-rays and computer technology, CCTA can detect both calcified (hard) plaques and noncalcified (soft) plaques. CCTA has been shown, through major research studies, to be highly sensitive (>90%) in the detection of CAD.
A cardiac MRI is a safe and non-invasive exam that uses radiofrequency pulses and magnets to examine heart structure (chambers, valves, and muscles) and function. It can determine if any areas of the heart have been injured.
Your doctor will determine which type of imaging is appropriate based on your medical and family history, risk factors, and type and duration of symptoms. CCTA exams are often faster than cardiac MRI, so your doctor may order CT first, then cardiac MRI if more information is needed.
MRI creates images by exposing hydrogen atoms within our body to a magnetic field which controls the direction and frequency at which hydrogen protons spin. A radio frequency pulse is then directed at a specific area of the body, while smaller magnets are used to alter the magnetic field on a small, but localized level. As tissues respond differently to these magnetic field alterations, a computer can convert the data into a picture.
CCTA imaging on the other hand uses X-ray technology to produce images, so there is some exposure to radiation. This exposure is higher than that of standard X-rays, but the associated radiation risk is still small. For example, the radiation exposure from one CCTA is similar to the exposure from the earth’s natural background radiation in one year. In most cases, the benefits of a CCTA, such as the early detection of a serious illness, significantly outweigh the small increased risk from radiation exposure.
CCTA exams require the use of an iodinated contrast dye which is injected through a vein in the arm. The contrast dye travels through the targeted body areas resulting in more detailed CT scan images.
Some cardiac MRIs may require contrast. It can help highlight the blood vessels to show their structure, and information related to tissue blood supply, inflammation, and scarring.
An MRI uses a strong magnetic field, which can attract metal objects or may cause metal in your body to move. You will need to wear comfortable clothes free of metal zippers or buttons, including metal-free underwear, and you will be screened to exclude internal metal objects that are not safe in the MRI. This includes some medical devices, such as intrauterine devices or some pacemakers. Your technologist may ask you to remove any external metallic objects, which are unsafe near the MRI magnet.
An MRI can be noisy, so you will be given headphones to block some of the noise. The scanner is well lit and well ventilated, and patients can remain in contact with the technologist during the exam through an emergency call button. Eye masks are available upon request for patients who have difficulty relaxing in a confined space.
For CCTA, there are a number of preparation instructions to be aware of:
We offer cardiac MRI at our Saskatoon location in Saskatchewan as a publicly funded, community-based service under contract with the Saskatchewan Health Authority. This test is also offered privately, in accordance with and under the legislation of the Province of Saskatchewan.
In Alberta, cardiac MRI is only publicly funded, offered at hospitals through Alberta Health Services.
For CCTA, this is a publicly funded test in both Alberta and Saskatchewan. In Alberta only, we offer CCTA as a private pay examination, not covered by Alberta Health Care, at our Mayfair Place location. It can be purchased on its own or as part of a Health Assessment package, which provides a discount on multiple imaging exams when purchased together.
Your health spending account or group medical insurance plan may cover the cost of a private CT that is prescribed by a qualified health care practitioner. You will need to check with your plan administrator for coverage details.
Whether public or private, medical imaging must be requested by a health care practitioner who will provide a requisition. When we receive your requisition, the staff at Mayfair Diagnostics will review it and contact you to schedule your exam, as well as provide you with detailed preparation instructions. Once your exam is completed, your images will be reviewed by a specialized radiologist who will compile a report that is sent to your doctor.
REFERENCES
Alberta Health Services (2022) “MRI of the Heart: About This Test.” myhealth.alberta.ca. Accessed July 2, 2024.
Cleveland Clinic (2024) “Blood Flow Through the Heart.” clevelandclinic.org. Accessed June 27, 2024.
Cleveland Clinic (2024) “Heart MRI.” clevelandclinic.org. Accessed June 27, 2024.
John Hopkins Medicine “Noninvasive Cardiovascular Imaging.” hopkinsmedicine.org Accessed June 27, 2024.
Newton, C. (2010) “Comparing CTA Scan and MRA Scan.” dicardiology.com. Accessed July 2, 2024.
Weberling, L.D., et al. (2023) “Coronary Computed Tomography vs. Cardiac Magnetic Resonance Imaging in the Evaluation of Coronary Artery Disease.” ncbi.nlm.nih.gov. Accessed July 2, 2024.
Radiologists are specialized physicians who interpret diagnostic imaging to diagnose and monitor a wide range of medical conditions. At Mayfair Diagnostics, they review X-ray, ultrasound, CT, and MRI studies, among others, analyzinsg images in detail and providing comprehensive reports and clinical recommendations to referring physicians. They collaborate closely with technologists and clinic teams to guide imaging protocols, ensure quality and radiation safety standards, and may perform image-guided procedures such as biopsies or injections. Through their expertise and teamwork, radiologists play a key role in accurate diagnosis, effective treatment planning, and improved patient outcomes.
Administrative professionals support the organization across human resources, marketing, operations, strategic partnerships, finance, information technology, and infrastructure. From recruiting staff to promoting services and improving workflows, they help ensure smooth operations and positive experiences for employees and patients. Through collaboration with clinical and support teams, they provide essential coordination that enables efficient, high-quality service.
Diagnostic Imaging Assistant (DIA) support clinic operations and help ensure a positive patient experience. They assist staff by greeting and preparing patients, confirming information, coordinating appointments, and guiding patients through their visit. DIAs also maintain exam rooms, manage documentation, and ensure supplies and equipment are ready. Through strong customer service, attention to detail, and teamwork, they help create a safe and organized environment.
Patient Experience Coordinators (PECs) are the first point of contact, scheduling exams and ensuring accurate patient information. They communicate clearly with patients, coordinate with care teams, and support a smooth, confidential, and customer-focused experience.
Nuclear Medical Technologists perform diagnostic nuclear medicine procedures involving sensitive and highly personal patient circumstances. They are responsible for delivering the highest standard of care in a professional, compassionate, and patient-centered manner, in accordance with provincial regulatory requirements, CAMRT standards, and Mayfair policies and guidelines.
Computed Tomography (CT) Technologists operate CT imaging equipment to produce detailed cross-sectional images of the body that assist in diagnosing a wide range of medical conditions. They prepare and position patients for scans, ensure safety protocols are followed, and administer contrast agents when required. CT technologists work closely with radiologists to ensure high-quality diagnostic images are obtained, while providing clear communication and compassionate care to support patient comfort throughout the procedure.
Magnetic Resonance Imaging (MRI) Technologists operates MRI scanners to produce detailed images of internal body structures used to assist in medical diagnosis and treatment planning. They are responsible for preparing and positioning patients, ensuring all safety protocols are strictly followed due to the strong magnetic field, and obtaining high-quality images as directed by radiologists. MRI technologists combine technical expertise with patient care, providing clear communication and support to ensure a safe, comfortable, and efficient imaging experience.
Diagnostic Medical Sonographers perform ultrasound exams to help diagnose and monitor medical conditions. Following Sonography Canada standards and Mayfair Diagnostics protocols, they capture accurate images while ensuring patient safety, comfort, and confidentiality. They work with radiologists and clinical teams to review requisitions, prepare patients, perform scans, and document findings, contributing to accurate diagnoses and a positive patient experience.
Medical Radiation Technologists (MRTs) perform x-ray, mammography, and BMD exams while ensuring patient safety, accuracy, and compassionate care. They also may assist in pain therapy procedures. MRTs verify patient information, explain procedures, position patients, and produce high-quality images. MRTs follow professional standards and protocols, maintaining strict radiation safety, quality assurance, and patient privacy while supporting a positive patient experience.
We foster a supportive and collaborative culture designed to encourage positive patient experiences and build strong working relationships across the organization:
Our core values shape the way we work with patients, partners, and fellow employees. And, more than anything else, they’re what set Mayfair apart. In everything we do, this is what we strive for:
EXCELLENCE
We share a commitment to high quality and excellence in all that we do. This commitment calls on all of us to achieve the very best of our capabilities and exceed our own expectations.
CURIOSITY
We innovate in everything, from services to processes. We believe meaningful change and effective problem solving come only by looking at challenges and opportunities from new angles and by exercising our creativity and curiosity.
PASSION
We show pride, enthusiasm, and dedication in everything that we do. We are committed to producing and delivering high-quality results and services. We are passionate about our industry and about our company, services, partners, and patients.
COLLABORATION
Our team is supportive of each other’s efforts; we are loyal to one another; and we care for one another both personally and professionally. We promote and support a diverse, yet unified, team. We work together to meet our common goals across Mayfair clinics, locations, and geographies. Only through collaboration on ideas, technologies, and talents can we achieve our mission and vision.
SERVICE
We take pride in delivering exceptional service every day. We listen to every request with an open mind, always looking for opportunities to go above and beyond to create memorable, personalized experiences. We take responsibility to answer our referrers’ and patients’ requests and respect their time by always responding with a sense of urgency.
Join Mayfair Diagnostics, recognized as one of Western Canada’s premier medical imaging organizations. With a century-long legacy and headquartered in Calgary, Alberta, Mayfair Diagnostics is dedicated to assisting patients in achieving clarity regarding their health.
Operating clinics in Calgary and surrounding areas, Regina, and Saskatoon, our multidisciplinary team of radiologists, technologists, and support staff collaborate seamlessly to deliver high quality patient care. Working here is more than just a job; it’s a strong step towards your future.
OUR TEAMS
We are a dedicated group of professionals who combine skill with compassion to deliver attentive care to our patients. As a reliable partner in their health care journey, we provide high-quality imaging that assists patients, physicians, and other providers in making informed health decisions. Our work goes beyond imaging; it’s about fostering relationships and positively impacting everyone we serve.
OUR VISION
We envision a world where every person has clarity about their health. We innovate and welcome change, promoting leadership and creativity through safe risk-taking. We share best practices, earn peer recognition for our work, and engage top talent to reach our goals.
We strive to be thought leaders and encourage creativity by providing a safe place for calculated risk taking.
We share best practices across our operations and are recognized by our peers for our work. We engage the best to help propel us forward in achieving our goals.
