Advanced Imaging. Trusted by Vets. Loved by Pets.

Trusted Mobile Veterinary Imaging Since 2006.

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Meet Our Sonographers

Ultrasound brought to you.

Jack Johnston, founder of PetSafe Diagnostics, created this company with a passion for helping animals.  PetSafe Diagnostics continues his legacy with extremely talented, compassionate and dedicated imaging professionals who share his vision.  All of PetSafe Diagnostics sonographers have undergone thorough and comprehensive training in veterinary imaging. 

PetSafe Diagnostics, LLC provides mobile veterinary ultrasound services to small animal clinics in the Dallas/Fort Worth area, offering in-office abdominal and cardiac diagnostic testing. Our services help reduce referrals and increase clinic revenue by delivering comprehensive imaging directly at the point of care. Each exam includes advanced imaging techniques and is reviewed remotely by board-certified specialists. The diagnostic process integrates ultrasound, radiographs, and lab work for a complete case review. These exams help identify a wide range of conditions, including cancers, organ abnormalities, urinary issues, cardiac disease, and gastrointestinal disorders.

Meet Our Sonographers

  • Dani Thomas, RDMS, RVT

    Dani Thomas is a Registered Diagnostic Medical Sonographer (RDMS) and Registered Vascular Technologist (RVT) who joined PetSafe Diagnostics in 2022. She graduated from Collin College in 2020 with an Associate of Applied Science in Diagnostic Medical Sonography. With a lifelong passion for animals and veterinary medicine, Dani found her calling in diagnostic imaging. She is well-known for her love of dogs (especially Pomeranians and German Shepherds) which shines through in both her professional and personal life and wears her “crazy dog lady” title with pride.

    Outside of work, Dani enjoys spending time with her husband, Taylor, and their son, Noah. An avid equestrian, she also finds joy riding her horses. Her love for animals extends to home life, where she cares for a variety of furry friends including dogs, cats, goats, and horses on their property in Royse City, Texas. 

  • Linda Wogaman, RDMS, Mobile Imaging Specialist

    Linda graduated from the human ultrasound program at El Centro College in Dallas, Texas. She is a licensed Diagnostic Medical Sonographer.

    She worked for 10 years in human medicine, all hospitals around the Dallas area, performing various scans like abdomen, OB/GYN, small parts, pediatrics, and procedures such as abdominocentesis drains, breast biopsies, and FNAs. Then she met Jack Johnston and Tammie Johnston! Linda did a ride along with Jack one day, and that was it. She was hooked on veterinary medicine. She soon became a PetSafe mobile imaging specialist!

    Linda grew up in St. Louis, Missouri, until her mother moved the family to Dallas when she was a sophomore in high school, where she attended Lake Highlands High School. She lives in Richardson with her husband Jeff and 2 dogs Harley and Sutter.

    Her hobbies are spending time in the northern New Mexico and Colorado mountains hiking, camping, fly fishing (trying), snow shoeing, skiing, and just enjoying nature.

    “I never dreamed that becoming a veterinary sonographer would take me down the path it has, in having been blessed to scan not only cats and dogs but exotics such as gorillas, chimps, lemurs and those magnificent Big Cats!! Thank You Tammie and Jack.”

  • Megan Thurston, Certified Veterinary Sonographer

    Megan joined PetSafe in March of 2017. She graduated from Cedar Valley College in 2014 with an associates degree in Veterinary Science. She received her certification for sonography from Sound Technologies in 2016. Megan found her passion for sonography when she was a kennel technician holding for an echocardiogram. It has been all she has wanted to do ever since. Outside of work, Megan loves spending time with her husband, Daniel and two kids Claire  and Dean. Whether it be camping, spending time on the lake, or just hanging out at the house. We always include our two fur babies, Sadie and Ollie.

  • Anna Procious, BS, RDCS

    Anna has been in the veterinary ultrasound field since 2001. She began as a mobile sonographer in the Dallas area with Sound Technologies and continues to teach veterinary ultrasound with Sound-Eklin at The Academy of Veterinary Imaging in Arlington, Texas. She has experience imaging small animals and exotics. Anna graduated from Texas A&M Univeristy in 1995 and worked as a human sonographer specializing in cardiology prior to becoming a mobile sonographer. Anna is a Registered Cardiac Diagnostic Sonographer, a credential earned by the American Registry of Diagnostic Medical Sonographers and is a member of the Society of Diagnostic Medical Sonographers.

    Anna is a Texas native, born and raised in Corsicana, Texas. She enjoys spending time with her husband and two children exploring all that Texas has to offer. Anna is an avid swimmer and has been a masters swimming coach for almost 15 years. Her family has one dog named Ranger, and one cat, Jessie.