Our Mission

To provide clinically relevant and accurate diagnostic imaging interpretation from an equine specialist in a friendly, interactive and timely fashion, facilitating the highest quality of care for your equine patients.  


Anthony DeRouen leading radiology rounds at AAEP.

Anthony DeRouen leading radiology rounds at AAEP.

 

Meet our team of dedicated and passionate individuals who all share a love of equine diagnostic imaging.


Sarah Puchalski, DVM, DACVR

Sarah hails from Roberts Creek, British Columbia, Canada.  She has a bachelor of science degree from Simon Fraser University in B.C. and graduated veterinary school in 1999 from the University of Saskatchewan in Saskatoon.  Following veterinary school she completed a 2 year program (internship/ residency) in Field Service and Sports Medicine at New Bolton Center, the large animal hospital of the University of Pennsylvania.  She then pursued further training in diagnostic imaging at the University of California, Davis completing a 4 year residency in 2005.  She attained board certification by the American College of Veterinary Radiology in 2004. 

Upon completion of her residency, she obtained a faculty position in the Department of Surgical and Radiological Sciences at the University of California, Davis earning tenure in 2012.  During that time she was actively involved in didactic and clinical teaching, research and clinical diagnostic imaging.  She has authored or co-authored more than 40 scientific articles and multiple book chapters relating to diagnostic imaging in veterinary medicine.

In 2013, Sarah left the University and started Puchalski Equine Inc.  She is based in Petaluma, California at Circle Oak Equine and in Wellington, Florida during the Winter Equestrian Festival.  Sarah is an avid show jumper competing in the amateur owner divisions.


Anthony Derouen, dvm, dacvr

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Anthony DeRouen is a Diplomate of the American College of Veterinary Radiology with a special interest in equine cross-sectional imaging. 

Anthony was born and raised in Southern California at the doorstep to Joshua Tree National Park. He developed a passion for the outdoors and animals at an early age, working on local ranches, raising guide dogs, and working for a local equine veterinarian.

Anthony attended Colorado College in Colorado Springs, graduating with high honors in 2006. Anthony attended University of California, Davis for his veterinary degree, graduating in 2011. During veterinary school, he earned achievement awards for excellence in Large Animal Radiology and Large Animal Surgery. He then completed an equine internship in Glenwood Springs, CO.

Following the internship, Anthony returned to UC Davis for his radiology residency. During his residency, Anthony published research on equine cervical spine malformations and their clinical relevance. He achieved board certification in 2015. 


Stacie aarsvold, DVM, DACVR

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Stacie is originally from Southern California, but grew up travelling around the world with her parents, living in more than 33 countries. She developed a love of horses growing up competing in show jumping up to the Young Rider level in Southern California. 

Stacie completed an undergraduate degree at the University of California, San Diego in 2008 and then graduated from veterinary school at the University of California, Davis in 2012. She then went on to complete an equine internship in Dover, NH followed by a radiology speciality internship in Los Angeles, CA.

Following her internships, Stacie went to the Cummings School of Veterinary Medicine at Tufts University for a radiology residency. She achieved board certification in 2017.


Krissy collett

Krissy graduated in 2002 from Colorado State University with a BS in Equine Science.  She then pursued a career in three-day eventing (2002-2007).

In late 2007 Krissy moved to Davis and began working for the University of California’s Veterinary Medical Teaching Hospital where she started out in Large Animal Intensive Care Unit.  In 2010 she began working for the Large Animal Diagnostic Imaging Department as a radiographer, MRI technician, lab instructor and taught radiography to veterinary students. 

In December of 2014, Krissy left the university to pursue a career in the private sector.  She has worked two winter seasons at Palm Beach Equine Clinic where she ran the MRI unit, trained operators and assisted with radiography questions.  Currently she is based at Circle Oak Equine Clinic where she is in charge of all imaging production and related education.

In addition to having a keen interest in equine diagnostic imaging, Krissy also has a passion for photography (all photographs found on this site are her work).  


Alexandra Strandberg

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Alexandra was born and raised in the Bay Area. She discovered her passion for riding at a young age and competed in the hunter divisions and hunter derbies as a junior. Riding became an integral part of her life and continues to be to this day.

Alexandra attended college on the East Coast and graduated Magna Cum Laude from Tufts University in 2015 and became a member of Phi Beta Kappa. She has a Bachelor of Science in Biology and a minor in Economics. Throughout her college career, Alexandra sought opportunities to learn the many aspects of healthcare whether it was working as an intern at L.E.K., a healthcare consulting firm based in San Francisco, or learning about care coordination and integration from the Physician in Chief at the Kaiser Permanente facility in Santa Clara.  Now Alexandra is based at Circle Oak Equine year round as the diagnostic imaging administrative assistant. 


lulu & bandit, office dogs

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These two are the best of friends.  Each day in the office is a bit more entertaining because they are there.  They live for their daily walks at the end of each day.  You cannot lose track of time at the end of the day because they will remind you when it is walk time!