Coronary arteries deliver blood to the heart, so anything that affects their function can have serious health implications. If the flow of oxygen and nutrients to the heart muscle is impeded as a result of coronary artery disease (CAD), this can lead to heart failure and possibly a heart attack.
The most common cause of CAD is a buildup of plaque in the inner lining of an artery causing it to narrow or become blocked – also called atherosclerosis. These coronary arteries are small – often just three or four millimetres wide – putting them at risk with any buildup. Plaque can be composed of various substances that circulate in your blood, including calcium, fat, and cholesterol. Plaque buildup can start at an early age and is cause by a combination of genetic and lifestyle risk factors.
For those at risk of CAD, a coronary CT angiography (CCTA) can be used to non-invasively examine the coronary arteries. Using a combination of X-rays and computer technology to produce comprehensive, detailed images, CCTA can detect both calcified or hard plaques and noncalcified or soft plaques. It is these soft plaque deposits, often invisible with standard imaging tools, that are more likely to cause heart attack related health issues.
The night before your CCTA exam (and sometimes again shortly before the exam) you will need to take beta blockers to lower your heart rate. A nurse will also monitor your blood pressure and heart rate and start an intravenous (IV) line for the CT contrast solution. Once the exam begins it’s very similar to an X-ray. You will be positioned on a table while the technologist adjusts the scanner. The technologist then leaves the room, and the scan begins. At different times throughout your exam, you will be asked to hold your breath for about 10-15 seconds.
Your exam will measure the amount of calcium deposits surrounding your coronary arteries and assess the lumen of the coronary arteries for any narrowing. It will also assess the wall of the coronary vessels for any soft plaques. The process is painless and usually takes between 15-20 minutes. However, the appointment can last from one to two hours depending on how well the beta blockers work to lower your heart rate. If your heart rate is too high, it’s difficult to obtain clear pictures of your coronary arteries.
After your scan, we will remove your IV and escort you to our waiting lounge for about 20 minutes to make sure you are feeling well and drinking plenty of fluids, and to check your blood pressure and heart rate. Your images will be interpreted by one of our radiologists and a report will be sent to your doctor within the same business day, or by the next business day at the latest.
At Mayfair Diagnostics CCTA screening is only available as a private pay exam, not covered by the Alberta Health Insurance Plan. Mayfair Diagnostics offers community-based private CT services as a complement to the public health care system.
Through the public health care system, CCTA has some, but limited availability. A traditional angiography may also be offered. During this procedure, a thin, hollow tube called a catheter is inserted into an artery (usually in the arm or leg) and threaded up into the heart. A contrast dye is then injected through the catheter to document areas of coronary artery narrowing. The benefits of this procedure are that it can be used for both diagnosis and treatment in a single session. However, it’s invasive, requires fasting before the procedure, and in-hospital recuperation afterward.
Whether public or private, a traditional angiography and a CCTA must be requested by a health care practitioner. To determine what is recommended, patients and their doctors often review medical and family history, risk factors, and if there are symptoms, how long symptoms have been present and how they affect daily activities. If a private CCTA scan is indicated as a best next course of action for a patient, a requisition will be provided and the appointment can be booked.
Not all patients are good candidates for this exam. It’s also important to note that the exposure to radiation from a CCTA scan is higher than that of standard X-rays, but the associated risk is still small. For example, the radiation exposure from one CCTA is around 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 also has the small possible risk of an allergic reaction to the contrast dye.
For more information on CCTA, please visit the exam page.
REFERENCES
Doh, J. H., et al. (2014) “Diagnostic value of Coronary CT angiography in comparison with invasive Coronary angiography and intravascular ultrasound in patients with intermediate Coronary artery stenosis: results from the prospective multi-centre FIGURE-OUT (Functional Imaging criteria for GUiding REview of invasive Coronary angiOgraphy, intravascular Ultrasound, and Coronary computed Tomographic angiography) study.” European Heart Journal Cardiovascular Imaging. August, 15(8): 870-7. Accessed October 18, 2022.
Government of Alberta (2022) “Computed Tomography Angiogram (CT Angiogram).” www.myhealth.alberta.ca. Accessed October 18, 2022.
Government of Alberta (2022) “Coronary Artery Disease: Should I Have an Angiogram?” www.myhealth.alberta.ca. Accessed October 18, 2022.
Johns Hopkins Medicine (2022) “Anatomy and Function of the Coronary Arteries.” www.hopkinsmedicine.org. Accessed October 18, 2022.
University of Ottawa Heart Institute (2022) “Coronary Artery Disease (Atherosclerosis).” www.ottawaheart.ca. Accessed October 18, 2022.
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.
