Dr. Grant Arnold Larsen

• Bone Densitometry (DEXA) Scan Interpretation: Analyzing DEXA scans to measure bone mineral density, assess osteoporosis risk, and monitor treatment effectiveness.
• X-ray Interpretation (Radiography): Expert analysis and reporting of X-ray images for diagnosing conditions related to bones (fractures, arthritis), chest (pneumonia, lung nodules), and abdomen.
• Fluoroscopy Procedure Interpretation: Interpreting real-time X-ray imaging (fluoroscopy) used during procedures like barium studies (GI tract), hysterosalpingograms, or to guide certain injections.
• 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.

Note: This list provides an overview of common radiology services. Dr. Larsen 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 Alberta (CPSA).

Dr. Larsen's practice is primarily based at medical imaging facilities located in the southwest neighborhoods of Calgary, including Haysboro, Kingsland, and Kelvin Grove. These facilities connect the northwest and southwest regions of the city, providing convenient access for patients. The locations are accessible via Calgary Transit, including the CTrain LRT, bus, and BRT services. The facilities are wheelchair accessible, ensuring barrier-free access for all patients. Parking is available at the facility, with additional options nearby for metered street parking or paid parking facilities.

Are imaging studies interpreted by Dr. Larsen covered by Alberta Health Care Insurance Plan (AHCIP) in AB?

Medically necessary diagnostic imaging studies interpreted by a Radiologist like Dr. Larsen are typically covered by Alberta Health Care Insurance Plan (AHCIP) in AB 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 Alberta Health Care Insurance Plan (AHCIP) or the imaging clinic/hospital.

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

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. Larsen provides expert interpretation of these physician-ordered studies.

Why might I need an injection of 'contrast' or 'dye' for my scan?

Contrast material (often called 'dye', though it's usually clear) is a special substance that can be injected intravenously (or sometimes taken orally or rectally) to help certain organs, blood vessels, or tissues stand out more clearly on imaging exams like CT or MRI. It can help Dr. Larsen see abnormalities that might otherwise be hidden. Not all scans require contrast; it's used when it can provide important additional diagnostic information.

What is Interventional Radiology?

Interventional Radiology is a subspecialty of radiology where physicians use medical imaging (like X-ray, CT, ultrasound, MRI) to guide minimally invasive procedures for diagnosis (e.g., biopsies) or treatment of a wide range of conditions in nearly every organ system. These procedures are often alternatives to open surgery. Dr. Larsen specializes in these image-guided procedures. He provides the interpretation that may lead to referral for such procedures.

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. Larsen or your referring doctor will determine which test is best for your specific medical question.

I'm concerned about radiation exposure. Are X-rays and CT scans safe?

Patient safety is our top priority. Radiologists and technologists are trained to use the lowest radiation dose necessary to obtain high-quality diagnostic images (this is known as the ALARA principle - As Low As Reasonably Achievable). While X-rays and CT scans do use ionizing radiation, the amount for most diagnostic exams is carefully controlled and the benefit of an accurate diagnosis generally far outweighs the very small potential risk. If you have specific concerns, please discuss them with your referring doctor or the imaging staff before your exam.

1904-8710 Horton Rd SW
Calgary, AB T2V 0P7

Phone: (403) 726-9729

The facility is wheelchair accessible.

Dr. Larsen is a licensed physician regulated by the College of Physicians and Surgeons of Alberta (CPSA) under the Health Professions Act in AB. Imaging services are typically provided based on referrals from other physicians.

Verify registration with the College of Physicians and Surgeons of Alberta (CPSA): https://search.cpsa.ca/PhysicianProfile?e=62ede1c3-9ac2-49da-b89b-08022f86c2a6&i=821