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Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →A VTS Diagnostic Imaging Specialist, or VTS-DI, is a veterinary technician who has earned an advanced specialty credential in veterinary diagnostic imaging. In a five-question interview published by the American Animal Hospital Association on April 6, 2026, Megan Gonzalez, CVT, VTS-DI, explains why she chose the field, where technicians fit alongside radiologists, and what she would tell someone considering the path. Her answers reflect her own professional perspective. They are not an official AAHA position, and they do not describe every imaging specialist’s career.
What a VTS-DI is and who awards the credential
“VTS” stands for Veterinary Technician Specialist. NAVTA states that VTS credentials are awarded through certification by a NAVTA/CVTS-approved specialty academy. The Academy of Veterinary Technicians in Diagnostic Imaging (AVTDI) is the academy for this field, so a VTS-DI holds the diagnostic imaging specialty from that body. You can confirm the credential framework on NAVTA’s VTS credentials page and the list of recognized academies in the NAVTA academy directory.
Gonzalez’s interview profile describes more than 10 years as a certified veterinary technician, with the last 8 years specializing in radiology. She is the owner of Sono On-Site Veterinary Imaging. That is one practitioner’s background, not a benchmark for the field.
Why diagnostic imaging? The scope of the specialty
Gonzalez’s account of why she chose diagnostic imaging is personal, and the interview presents it that way. The scope of the specialty itself is documented by NAVTA and AVTDI, which describe work across the following modalities:
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- Digital radiography
- Fluoroscopy
- Computed tomography (CT)
- Magnetic resonance imaging (MRI)
- Ultrasound
- Nuclear medicine imaging
That breadth matters for the rest of this article. A specialist who works across several modalities has to know how each one produces its images, which is also why the credential requirements below go well beyond a single imaging skill.
What general practitioners should understand: acquisition versus interpretation
The most useful distinction in the interview is between producing good images and reading them. Gonzalez says technicians may be trained to perform advanced procedures, but interpretation is outside their scope. She values having advanced studies interpreted by a boarded radiologist, and she puts it this way:
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“I would say that while it is a great tool and resource to have advanced imaging, there is value in a veterinary specialist performing them and also having those images interpreted by a boarded radiologist.”
For a general practice team, the division of labor is practical. The technologist’s job is to obtain images that are diagnostic in quality. The radiologist’s job is to interpret what those images show. Each role depends on the other, and neither replaces the other in Gonzalez’s account.
Career opportunities and the case for using VTS skills
On the career side, Gonzalez’s central argument is about utilization. She calls VTS professionals “an under-utilized resource in vet med” and says that greater trust in their skill set improves efficiency within the team and enhances patient care. The interview offers no employment, salary, or outcome figures for the field, so this is her professional judgment rather than measured evidence. It is still a clear statement of how she sees the role inside a hospital.
Advice for prospective specialists: work with a boarded radiologist
Her most direct advice to people entering the field is to build a close working relationship with a boarded radiologist:
“Work very closely with your boarded radiologist!”
She describes that relationship as a source of teaching, practice opportunities, and support through the application process. The interview also covers what she finds rewarding in the work. Those answers are her own experience, so they are best read in the full interview.
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How to qualify: AVTDI certification requirements
The table below summarizes the thresholds on AVTDI’s certification page, which was reviewed in early October 2026. Hours, timing windows, exam dates, and fees are cycle-sensitive, so confirm them on the AVTDI site before you plan an application or budget for one.
| Requirement | AVTDI threshold | Timing or window |
|---|---|---|
| Veterinary work experience | At least 10,000 hours | Completed within the seven years immediately before application |
| Diagnostic imaging experience | At least 7,500 hours (part of the 10,000) | Within the same seven-year window |
| Imaging-related continuing education | At least 40 hours | Within the seven-year window, with at least 10 hours in the application year |
| Recommendations | Two confidential recommendation letters | Not stated |
| Case logs | 45 to 60 case logs | Not stated |
| Case reports | Six detailed case reports | Not stated |
| Examination | An AVTDI exam | Dates not stated; check the current cycle |
Eligibility also requires the following:
- Education or credentialing: graduation from an AVMA- or CVMA-accredited veterinary technology education program, or recognized credentialing
- A passing score on the Veterinary Technician National Examination (VTNE) or a state licensing exam, shown as evidence
What the application tests beyond hours
AVTDI’s final application guidance says candidates must demonstrate relevant knowledge in these areas:
- Radiation safety, including ALARA (keeping exposure as low as reasonably achievable)
- Imaging physics
- Anatomy and physiology, and pathophysiology
- Patient positioning and imaging procedures
- Contrast media considerations
- HIPAA or equivalent compliance
- PACS administration
- Digital image storage and formatting
The guidance also calls for demonstrated imaging skills attested by qualified specialists, and competence across patient species. Hours alone do not show readiness for the credential.
What this means for pet owners
Advanced imaging is one area where who performs the work matters. If your veterinarian recommends a CT, MRI, fluoroscopy, or another advanced study, these questions will clarify the process:
- Who will acquire the images, and do they hold specialty training in imaging?
- Who will interpret the images, and is a boarded radiologist involved?
- Will the written report be shared with your regular veterinarian?
Answers vary by clinic and by referral arrangement. Asking them gives you a clear picture of who is responsible for each part of the study.
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