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A few small structures (ganglia and associated nerves) located near the middle of the head are primarily responsible for dilation or constriction of blood vessels. Irritation within these structures is one of the primary causes of recurrent headaches (migraine, cluster, etc.). A sphenopalatine ganglion (SPG) block involves the safe delivery of anesthetic to the back of the nasal cavity via the nostril. Delivery of anesthetic to this location helps evaluate the source of head or facial pain, and often eliminates or significantly decreases pain.
An SPG block is a low-risk, minimally invasive procedure that can be effective when other treatments have failed. It can be repeated in 1-2-week intervals, if necessary. Please note that an SPG block cannot be performed if you have an allergy to local anesthetic or an active respiratory infection (nasal congestion).
Patients receiving pain management treatments who need language interpretation or prefer to communicate in a language other than English are encouraged to bring a family member or friend to their appointment to assist with translation. This ensures that patients fully understand the procedure and necessary instructions. If the patient is unable to comprehend the instructions, the appointment may need to be rescheduled. As Mayfair does not provide language interpreters, it is essential for patients to make these arrangements in advance.
This exam is covered under your Alberta Health Care Plan. It is not currently offered at our Saskatchewan clinics.
Please bring the following to your appointment: a valid government-issued ID, your provincial health card, and your exam requisition (if you have received one).
Please ensure that you bring your requisition with you to your appointment.
20-30 minutes
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At the heart of everything we do is a belief that every image tells a story—and every story deserves care.
At Mayfair Diagnostics, we provide state-of-the-art medical imaging that helps patients and physicians get the clarity they need to make informed decisions about health. From routine check-ups to complex diagnoses, our role is to deliver answers with compassion and accuracy.
We offer a full spectrum of imaging services, including:
MRI, CT, and X-Ray for advanced diagnostic insight
Ultrasound and Mammography for preventative and women’s health
Nuclear Medicine, Bone Density, and Cardiac Imaging for specialized care
Pain Management and Interventional Procedures to improve quality of life
But our work extends beyond exams and equipment. As the largest teleradiology provider in Western Canada, we connect urban, rural, and remote communities with expert radiology services—ensuring access to care when and where it’s needed most.
We also partner with local organizations, sports teams, and community groups to keep people healthy and active. From professional athletes to families booking their first screening, our commitment is the same: timely results, advanced technology, and compassionate care.
To improve lives with clarity, compassion, and care—one focused image at a time.
But numbers only tell part of the story. What truly defines us is our culture of compassion. We’re a team of caregivers, innovators, and problem-solvers who share a commitment to excellence. Whether supporting frontline care, developing new technology workflows, or guiding a patient through their appointment, we approach our work with empathy and integrity.
At Mayfair, you’re not just part of a company—you’re part of a community. Together, we’re shaping the future of health care, making advanced imaging accessible, and creating a workplace where people feel valued, supported, and inspired to grow.
WHO WE ARE. WHAT WE DO. Why we’re more than a workplace
At Mayfair Diagnostics, we’re caregivers, nurturers, creators and thought leaders—deeply rooted in a passion to help people. We deliver meaningful work, compassionate care, and an environment where every team member can thrive.
Key Points:
Founded on over a century of excellence in medical imaging.
Owned and operated by 50+ radiologists, supported by 400–640+ employees across clinical, technical, administrative, and support roles.
Operating 17 locations across Alberta, Saskatchewan, and beyond (14 in Calgary, plus Cochrane, Regina, Saskatoon).
Serving 600,000–700,000 patients annually, delivering over 90,000 radiological interpretations—the largest teleradiology provider in Western Canada.
Vision & Mission:
Vision: “A world in which every person has clarity about their health.”
Mission: “To improve people’s lives, one focused image and one caring, compassionate human touch at a time.”
