At North West Nuclear Medicine for Animals we are dedicated to providing compassionate, high-quality care to cats with hyperthyroidism, while empowering their owners and family veterinarians through education and support.
Our Approach
Our passion is helping hyperthyroid cats live healthier, happier lives. Our clinic is exclusively dedicated to radioactive iodine (I-131) treatment, allowing our experienced veterinarians and staff to focus on delivering the highest standard of care using the latest evidence-based protocols.
Our comprehensive treatment fee includes a pre-treatment evaluation and consultation, the I-131 treatment and hospitalization, and review of post-treatment results with your family veterinarian.
We are committed to achieving the best possible outcome for every patient. In rare cases where a cat does not respond fully to the initial treatment, we offer retreatment at no additional cost.
Meet our Team
Dr. Seantry Dean, BSc., DVM
Dr. Seantry Dean earned her BSc degree from Simon Fraser University in 1999 and graduated with Great Distinction from the Western College of Veterinary Medicine in 2004. After completing her studies, she returned to the Lower Mainland and worked in general practice before joining North West Nuclear Medicine in December 2008.
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Seantry enjoys many aspects of her work at NWNMA, particularly the opportunity to care for cats—a species she has always loved. She finds great joy in meeting and treating the many hyperthyroid cats that come through the clinic, along with their devoted owners, and is deeply gratified to play a role in their recovery.
She lives in Port Moody with her two sons, three cats—Mittens, Penny, and Potato—a lively Chihuahua named Maisy, and a gentle Greyhound named Leo. In her spare time, she enjoys hiking, camping, and spending time outdoors with family and friends.
Seantry is pictured with her cat Potato, adopted from Cat Therapy and Rescue Society.
Dr. Karen Harvey, BSc., BVMS
After working with us as a licensed RVT Karen left NWNM in 2010 and graduated from Murdoch University in Western Australia in 2014. During vet school she continued to work as a technician in the emergency department where she learned how to treat such Australian emergencies as snake bites, extreme heat strokes, and blowfish intoxication.
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After graduating vet school, she worked as an anesthetist alongside specialists in the veterinary teaching hospital where she got addicted to the adrenaline rush of emergency anesthetic cases and anything requiring more than 5 IV pumps.
Once she moved back to Canada, she worked in emergency medicine before making it full circle (and accepting that senior hyperthyroid cats are where it's at) and coming back to NWNM in 2017 where she has been ever since!
When not at work, Karen can be found soaking up the sun at the dog beach with her two goldens, Bea and Jerry.
Dr Janet MacLean, BSC., DVM
Dr Janet MacLean graduated with honours from the Ontario Veterinary College in 1994. She then moved to Vancouver and has made this beautiful city her home ever since. Janet joined North West Nuclear Medicine in April 2021 and loves helping all the senior kitties and their caring owners.
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Janet has a dog Rosie and a cat Reuben, both rescues now living their best lives! When not working, Janet enjoys cycling and discovering all the great coffee shops Vancouver has to offer.
Dr. Antin Fok, B.Sc, BVMS
Dr. Antin Fok completed her degree with honours in Applied Animal Biology at the University of British Columbia in 2012. She then completed her graduate degree in Veterinary Medicine and Surgery at the University of Edinburgh. After graduation, she completed an internship in Los Angeles, working mostly in the Emergency and Internal Medicine Departments.
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Since 2017, she has been working in general practice on the North Shore as a general practitioner. Antin joined the NWNM team in 2023 and fell quickly in love with the medicine and seeing the amazing transformation in the kitties post-treatment.
When she is not at work, Antin may be found painting at home or breaking up fights between Ladybug, the nice-ish Chihuahua, adorable terrier Rolo, Californian kitty brothers, Snickers and Twix, and her newest addition, furless baby Delilah.
Brianne, RVT
Brianne began her career in veterinary medicine at just 15 years old, working in a vet clinic. Since then, she has explored various roles within the industry, steadily advancing her skills and experience. Starting as an assistant, she worked her way up and graduated from veterinary technology school in 2015.
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She joined North West Nuclear Medicine in the summer of 2020. However, the team was already familiar to her—Brianne had shared a workspace with them for years at the Vancouver Animal Emergency Clinic, prior to North West Nuclear’s move to their new location in 2014. Reuniting with the team (and their many feline friends) felt like coming home.
Outside of work, Brianne enjoys flower farming, sauna sessions and cold water dips, crafting, and spending time in the woods with her wife Michelle and their corgi, Ernie.
Mari, RVT
Ever since Mari was young, she always knew she wanted a job that involved animals. Whenever she visited her grandparents who lived in the country side of Japan, she found herself fascinated by all of the animals on the farms in the neighborhood.
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Mari graduated from the Veterinary Assistant program at West Coast College of Health Care in 2014. After graduation she worked at a small animal veterinary practice where she figured out that she wanted to eventually become a registered veterinary technician.
After gaining some hands-on experience, Mari went back to school and graduated as an RVT from Douglas College in 2019. As an RVT Mari worked in general practice as well as laboratory medicine before starting at North West Nuclear Medicine for Animals in 2022.
Mari has a love for many different types of animals and has volunteered with a variety of species (such as cats, rabbits, chinchillas and parrots) at the Richmond Animal Protection Society, Burnaby SPCA and Greyhaven Exotic Bird Sanctuary.
Lori, RVT
Originally from Toronto, Lori moved to Vancouver to explore her curiosity of the Pacific Northwest. She graduated from veterinary technician school in 2015 and worked at a specialty cat practice before joining the Nuclear family in 2017.
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Lori is passionate about animal welfare, low stress/fear free handling and preventive care. She is especially fond of felines and speciality medicine. You may see her down the hall as she also works with the North West Veterinary Dermatology team.
Lori volunteers with Paws for Hope and Community Vet Outreach and enjoys snowboarding and swimming.
Our History
North West Nuclear Medicine for Animals opened in 1996 with the goal of providing the best possible treatment for hyperthyroid cats in Western Canada. We treat up to 13 hyperthyroid cats per week and to date have treated over 7500 cats! We are the longest running, privately-owned radioiodine clinic in Canada. At North West Nuclear Medicine, we exclusively treat hyperthyroid cats, allowing us to focus on the latest research, diagnostic tools, and outcomes to provide the best possible care for your cat.
We hold a CNSC license use type 915, veterinary nuclear medicine, No. 12238-1-26.0
