From Film to Fiber: A History of DICOM and the Rise of Veterinary Teleradiology

How a technical imaging standard born in human medicine quietly transformed veterinary diagnostics — and opened the door to an entirely new industry that is now navigating the consequences of rapid corporate consolidation.

The Problem Before DICOM

To understand why DICOM matters, you have to understand what came before it — and how badly it failed.

In the early days of digital medical imaging, every manufacturer spoke a different language. A CT scanner from one vendor produced images that could only be read by that same vendor’s workstation. A hospital that purchased equipment from multiple manufacturers found itself managing a Tower of Babel — incompatible formats, proprietary software, and no ability to share images between departments, let alone between institutions. Radiologists were locked into equipment ecosystems. Second opinions required physically shipping film. Referring physicians waited days for images to travel across town.

This was the landscape in human medicine in the early 1980s, and it was unsustainable.

ACR-NEMA and the Birth of a Standard

In 1983, the American College of Radiology (ACR) and the National Electrical Manufacturers Association (NEMA) recognized the problem and formed a joint committee to solve it. Their mission: develop a universal standard for digital imaging — a common language that any manufacturer’s equipment could speak.

Their first publication, ACR-NEMA Standard 300, arrived in 1985. Version 2.0 followed, and the first public demonstration of the standard occurred at Georgetown University in May 1990. By 1993, the standard had evolved significantly, adopting TCP/IP networking protocols that allowed it to run over standard local area networks. With that evolution came a new name: DICOM — Digital Imaging and Communications in Medicine.

DICOM 3.0 established the framework that still underlies medical imaging today: standardized file formats, network communication protocols, information object definitions, and service definitions that allowed imaging devices from competing manufacturers to interoperate seamlessly. It was one of the most consequential technical standards in the history of medicine — and its implications for veterinary medicine would take years to fully materialize.

• 1983 ACR and NEMA form joint committee to standardize medical imaging
• 1985 ACR-NEMA Standard 300 published — first version of what will become DICOM
• 1990 First public demonstration at Georgetown University
• 1992 Veterinary Diagnostic Imaging, PC (VDIC) incorporated in Oregon — one of the first dedicated veterinary diagnostic imaging practices in the country
• 1993 TCP/IP integration; standard renamed DICOM 3.0
• 1994 First commercial veterinary teleradiology system launched (PSI, Effingham, IL)
• 1999 DarkHorse Medical Ventures founded — early veterinary telemedicine pioneer
• 2005 DarkHorse acquired by VCA, Inc. — first major acquisition in veterinary teleradiology
• 2006 PetRays founded; DICOM CP-643 establishes veterinary-specific tags
• 2009 IDEXX acquires VDIC, absorbing its teleradiology operations and active ACVR residency program
• 2010 DarkHorse moves to Antech Diagnostics, rebranded as Antech Imaging Services; VitalRads founded
• 2011 IDEXX acquires DVMInsight and Animal Insides
• 2017 Mars, Inc. acquires VCA for $9.1 billion, absorbing Antech Imaging Services
• 2018 PetRays acquired; Vet’s Choice Radiology founded
• 2022 FTC takes action against JAB Consumer Partners — landmark veterinary antitrust enforcement
• 2026 Corbel Capital Partners completes ownership transition of Vet’s Choice Radiology

Digital Radiography Comes to Veterinary Medicine — Slowly

While human medicine embraced digital imaging through the 1980s and 1990s, veterinary medicine largely watched from the sidelines. The economics were stark: the early computed radiography (CR) systems introduced by Fujifilm in the early 1980s carried price tags that placed them out of reach for all but the largest veterinary teaching hospitals and a handful of well-funded specialty practices.

Film remained the standard. Darkrooms were a fixture in veterinary practices. Radiographs were developed by hand, interpreted on lightboxes, and stored in physical folders. The idea of transmitting an X-ray image instantly to a specialist hundreds of miles away was science fiction for most of the profession.

The transition began gradually in the late 1990s and accelerated through the early 2000s, driven by two forces: falling hardware costs and the growing availability of broadband internet. As Dr. Brian A. Poteet of Gulf Coast Veterinary Diagnostic Imaging documented in a landmark 2008 review in Veterinary Radiology & Ultrasound, veterinary teleradiology was first commercially introduced as early as 1994 — but with severe limitations. The first commercially available veterinary teleradiology system, sold by Professional’s Software Inc. (PSI) of Effingham, Illinois, used modem-to-modem technology to transmit JPEG format images. Only one case at a time could be sent. It often took 30 minutes or more to transmit a couple of radiographs over a dedicated telephone line.

Poteet’s review documented the era’s constraints honestly: standard email was impractical for image transmission due to file sizes. JPEG compression sacrificed image quality to the point of potential misdiagnosis. Once an image was converted to JPEG, a radiologist lost nearly all ability to digitally adjust brightness, contrast, or windowing. The profession needed DICOM — but getting there would take time.

Poteet himself was one of the founding radiologists of PetRays, the early market leader in veterinary teleradiology. Shortly after launch, he elected to return full time to his academic and private practice commitments — a decision that left him well positioned as an independent voice in the profession. In 2010, Poteet founded VitalRads, a Houston-based veterinary teleradiology and imaging company that grew into a world-class team of board-certified specialists serving veterinarians globally. VitalRads was later acquired by Thrive Pet Healthcare, where it continues to operate. Poteet’s trajectory — from early teleradiology pioneer to independent practice founder to acquisition — is itself a microcosm of the industry’s arc.

ACVR and the Push for Veterinary DICOM Standards

The American College of Veterinary Radiology (ACVR) recognized early that the profession needed to adopt DICOM as its standard — and that simply applying the human medicine standard as written was insufficient. Veterinary patients presented unique challenges: species variation, owner information requirements, different anatomical nomenclature, and the need to document breed, neuter status, and microchip numbers as part of imaging metadata.

The ACVR sponsored DICOM Working Group 25, a committee dedicated to incorporating veterinary-specific terminology and identification tags into the DICOM standard. In 2006, the DICOM Standards Committee published veterinary identification tags (Correction Proposal 643), formally establishing how veterinary patient data should be encoded within DICOM files. It was a milestone that recognized veterinary medicine as a distinct domain within the global DICOM framework.

Educators in the field worked to spread awareness. Dr. Matthew Wright and colleagues published an introduction to DICOM for practicing veterinarians in the same 2008 supplement of Veterinary Radiology & Ultrasound. Wright also maintained a blog, Animal Insides, that became a widely-read resource for veterinary radiologists navigating the new digital landscape — documenting topics from JPEG compression risks to the dangers of vendor lock-in. These contributions, largely made outside of formal academic channels, helped the profession understand why DICOM compliance was not optional.

The Early Pioneers: Building the Market from Scratch

With technical standards emerging and broadband infrastructure expanding, a small number of entrepreneurs and veterinary radiologists began building the first commercial veterinary teleradiology services in the late 1990s and early 2000s. They were operating on a frontier with no established playbook, and the ones who succeeded deserve recognition.

VDIC — Veterinary Diagnostic Imaging, PC

Among the earliest formal enterprises in veterinary diagnostic imaging was Veterinary Diagnostic Imaging, PC — known throughout the profession as VDIC — incorporated in Oregon on December 28, 1992, under the leadership of Dr. Marc Papageorges. Operating from a purpose-built facility at 16900 SE 82nd Drive in Clackamas, Oregon, VDIC was structured from the outset as a full-service specialty imaging practice rather than a pure teleradiology service. Its model combined on-site diagnostic imaging — including ultrasound, CT, MRI, and cytopathology — with teleradiology services for referring veterinarians across the Pacific Northwest. In 1998, the practice formally expanded its name to Veterinary Diagnostic Imaging and Cytopathology, PC, reflecting the integration of cytopathology into its service offering.

VDIC was also a training institution. The practice operated an ACVR-accredited radiology residency program — one of the few private-practice-based residencies in the country — in affiliation with Oregon State University and Washington State University. Multiple board-certified radiologists who would later become prominent figures in corporate veterinary teleradiology completed their residencies at VDIC. Among them was Dr. John Feleciano, who completed his residency at VDIC, OSU, and WSU in 2004, joined the VDIC medical team, and became a partner and director of radiology before moving to IDEXX following the acquisition. He later served as Medical Director of IDEXX Telemedicine Consultants. Dr. Jennifer Hanson joined VDIC in 1995, served as resident director, and remained through the IDEXX transition. Dr. Nathan Keppie joined as a teleradiologist in 2005 and likewise continued with IDEXX after the acquisition.

In 2009, IDEXX Laboratories acquired VDIC — making it the first of three significant teleradiology acquisitions IDEXX would complete in a two-year span. The entity was briefly renamed S.A.E. Radiology, PC before being formally dissolved in December 2009, with personnel and operations folded into what would become IDEXX Telemedicine Consultants. The VDIC residency program was absorbed mid-cycle; Dr. Kristy Barksdale, who had begun her residency at VDIC in 2008, became the first radiology resident under the IDEXX banner when the acquisition occurred the following year.

DarkHorse Medical Ventures

One of the earliest and most influential was DarkHorse Medical Ventures, Inc., founded in 1999 by Greg Stoutenburgh, who had spent years as Director of the Center for Imaging Science at UC Davis School of Veterinary Medicine and subsequently at North Carolina State University. DarkHorse built one of the first commercially viable veterinary telemedicine platforms and helped demonstrate that the model could work at scale. Stoutenburgh was an early and vocal proponent of DICOM’s democratizing potential, arguing publicly that open standards freed veterinarians to choose the best service provider rather than being captive to equipment vendors. DarkHorse was acquired by VCA, Inc. in August 2005 — the first major acquisition in the veterinary teleradiology space. When VCA reorganized its operations, DarkHorse moved to Antech Diagnostics in 2010 and was rebranded as Antech Imaging Services (AIS). Today AIS, now owned by Mars, Inc., claims over 600,000 telemedicine consults annually and stores over 920 million images, making it the largest cloud-based veterinary PACS operation in the world.

VetRad

VetRad emerged as another early leader, establishing itself as a veterinarian-owned provider focused on concise, accurate reports with practical clinical recommendations. Its model emphasized the professional relationship between radiologist and referring veterinarian — something the larger middleman services struggled to replicate at scale. VetRad has remained independent, growing to support more than 1,000 referral partners throughout the United States and continuing to operate as a veterinarian-owned alternative to the corporate-owned services that now dominate the market.

DVMInsight

Perhaps the most structurally significant platform of the early era was DVMInsight, founded by Dr. Seth Wallach, DVM, DACVR. Wallach built DVMInsight as the infrastructure engine that could power independent radiologists’ teleradiology practices — a platform approach that was ahead of its time. Veterinary radiologists could build and run their own teleradiology companies on DVMInsight’s infrastructure without any upfront capital or computer networking expertise. The referring veterinarian would interact with the radiologist’s branded service while DVMInsight operated invisibly in the background.

Dr. Matthew Wright joined DVMInsight shortly after its launch and eventually acquired Wallach’s stake, becoming the platform’s owner and primary operator. At its peak, DVMInsight powered dozens of independent veterinary teleradiology practices across the country and internationally. The platform represented the open-standards vision in its purest form: individual board-certified radiologists competing on their own merits, with technology as an enabler rather than a barrier.

In 2011, IDEXX Laboratories acquired both DVMInsight and Animal Insides, consolidating one of the profession’s most important independent infrastructure platforms into the largest corporate player in veterinary diagnostics. Many of the independent radiologist practices that had been built on DVMInsight continued to operate — but now on infrastructure owned by one of the industry’s dominant commercial competitors. The implications of that structural shift continue to reverberate.

PetRays

In late 2006, a founding team that had operated a prominent national human teleradiology service identified a critical void in veterinary telemedicine. The catalyst was personal: their English Bulldog, King, required urgent imaging, and they witnessed firsthand the absence of timely veterinary teleradiology options even for large urban clinics. Drawing on their experience building human teleradiology infrastructure, they founded PetRays.

PetRays grew rapidly, expanding to clients across six continents and earning recognition as an Inc. 500 company — ranking number 133 in 2010 and number 65 in 2011 among the fastest-growing private companies in America. What distinguished PetRays was its combination of board-certified specialist interpretation and exceptional customer service infrastructure. The company’s support team accumulated over 150 industry awards between 2009 and 2018, including multiple Gold Stevie Awards from the American Business Awards. PetRays also extended beyond radiology, developing CardioVet in 2013 — a handheld Bluetooth ECG device that brought cardiology consults to practices that had never had access to board-certified cardiologists.

In 2018, PetRays was acquired in a transaction described by its founders as relatively quiet — a change that preserved the brand name but, in their assessment, diminished the commitment to R&D and technological advancement that had defined the company. Several years later, PetRays was merged into a competitor owned by the same parent company as the initial acquirer. The transaction triggered a significant departure of customers and former PetRays specialists.

The IDEXX Acquisition Strategy: Three Deals, Two Years

IDEXX Laboratories had been building its veterinary diagnostics empire since 1983, and its move into imaging was methodical. The IDEXX historical timeline records its acquisition of Professional Software, Inc. (PSI) — the same company that had introduced the first commercial veterinary teleradiology system in 1994. That acquisition brought IDEXX the foundational software infrastructure of the early veterinary teleradiology market.

But the more consequential consolidation came in a concentrated two-year window. In 2009, IDEXX acquired VDIC — absorbing not only an established group practice and its teleradiology client base, but also an active ACVR-accredited residency program that had been training the next generation of veterinary radiologists. That acquisition gave IDEXX an immediate footprint in the Pacific Northwest, a corps of experienced board-certified radiologists, and the residency infrastructure to recruit and shape future specialists.

Two years later, in 2011, IDEXX acquired both DVMInsight and Animal Insides, consolidating one of the profession’s most important independent infrastructure platforms into its operations. Combined with the earlier VDIC acquisition, IDEXX had assembled control over equipment-side software, an independent radiologist platform that had powered dozens of practices, and a growing team of specialists drawn from both. For practices that purchase IDEXX imaging equipment and use IDEXX PACS software, the path of least resistance leads to IDEXX teleradiology services. Critics of the structure argue that this vertical integration raises the same vendor lock-in concerns that DICOM was created to prevent — that equipment purchasing decisions effectively bundle radiological interpretation services in ways that limit true clinician choice.

IDEXX Telemedicine Consultants operates today as a global network of veterinary specialists, fully integrated with IDEXX’s diagnostic imaging hardware, PACS software, and practice management systems. Its base of operations remains in Clackamas, Oregon — the same community where VDIC operated for nearly two decades before being absorbed into the IDEXX enterprise.

The Mars-VCA-Antech Axis

On the other side of the duopoly sits the Mars, Incorporated ecosystem. Mars acquired VCA, Inc. — itself a massive chain of veterinary hospitals — in 2017 for approximately $9.1 billion. VCA owned Antech Diagnostics, which in turn owned Antech Imaging Services, the former DarkHorse Medical Ventures. The result was a single corporate entity with ownership stakes spanning veterinary hospital chains, reference laboratories, and teleradiology services.

Antech Imaging Services, under the Mars umbrella, now claims to be the veterinary industry’s number-one telemedicine and web-based image storage solution, providing over 600,000 consults annually. Its scale creates structural advantages in pricing, technology investment, and distribution that independent providers find difficult to match.

When Regulators Took Notice: The FTC and Veterinary Consolidation

The consolidation of veterinary services under private equity and large corporate ownership did not go unnoticed by federal regulators. In 2022, the Federal Trade Commission (FTC) took formal action against JAB Consumer Partners, one of the largest private equity consolidators in the veterinary services space.

JAB controlled two chains of veterinary clinics — Compassion-First Pet Hospitals and National Veterinary Associates — and sought to acquire Ethos, a specialty and emergency veterinary clinic operator, in a $1.65 billion deal. The FTC moved to block unrestricted completion of the merger, ordering JAB to divest clinics in Richmond, Virginia; Denver; San Francisco; and the Washington, D.C. area as a condition of approval. The Commission also imposed prior approval and prior notice requirements on both JAB and its divestiture buyers for future acquisitions of specialty and emergency veterinary clinics.

The FTC’s complaint documented what it described as a growing trend toward consolidation in the emergency and specialty veterinary services markets across the United States — with large chains including JAB regularly monitoring local markets in contemplation of continued growth through acquisitions. The Commission’s unanimous 5-0 vote approving the final consent order in October 2022 represented one of the clearest regulatory statements yet that the veterinary services consolidation wave warranted antitrust scrutiny.

The JAB action focused on hospital ownership rather than teleradiology specifically — but it established an important regulatory precedent. When corporate consolidation in veterinary services raises consumer protection and competition concerns significant enough to require FTC intervention, the question of whether bundled teleradiology services attached to equipment sales or hospital ownership cross similar lines deserves serious examination.

The DICOM Compliance Gap: A Problem That Never Fully Went Away

DICOM compliance was never simply a technical checkbox. It was — and remains — a patient care issue. When images are transmitted as JPEG attachments rather than DICOM files, the radiologist reading them loses the ability to adjust windowing, brightness, and contrast. Subtle lesions can be missed. Diagnoses can be delayed or wrong. The professional community understood this clearly by the mid-2000s. The problem was that understanding and enforcement are two different things.

In human medicine, this gap is largely closed. Hospital accreditation bodies, state radiation control programs, and Medicare/Medicaid participation requirements create layers of regulatory accountability that compel compliance. An imaging facility that routinely transmits JPEG files instead of DICOM-compliant studies risks accreditation and reimbursement consequences. The enforcement infrastructure exists.

Veterinary medicine has no equivalent. There is no federal body with jurisdiction over veterinary imaging standards. State veterinary medical boards focus on licensure and practice conduct, not technical imaging specifications. The ACVR can issue position statements and guidelines — and has done so — but has no authority to discipline or sanction practices that ignore them. Equipment vendors who claim DICOM compliance often deliver partial compliance or non-compliant DICOM Send functionality without consequence.

The practical result was documented in peer-reviewed research. A 2018 study published in the Journal of Digital Imaging examining DICOM standard conformance in veterinary practices found that full compliance was rare — with fewer than 6% of studied facilities meeting the complete standard. JPEG submission to teleradiology services remained commonplace years after the profession’s educators had clearly explained why this practice was problematic.

PetRays confronted this problem directly and systematically. Its founding team arrived from human teleradiology with a standard of DICOM compliance that had been shaped by hospital accreditation requirements, radiology society guidelines, and medical-legal exposure. When they applied that standard to veterinary clients, they encountered widespread non-compliance — not from negligence, but from a combination of equipment limitations, vendor misrepresentation, and simple lack of education.

Rather than lowering the standard, PetRays invested in the tools to bring clients up to it. The company developed proprietary workflow infrastructure and client-side support processes that made DICOM compliance routine for practices that had never achieved it before. For veterinary practices accustomed to sending JPEG email attachments and receiving an interpretation the next day, the experience of submitting a fully DICOM-compliant study and receiving a report with full image manipulation capability was often the first time they understood what they had been missing.

The compliance gap persists today. No governing body has stepped in to enforce the standards that the profession’s own technical experts have long agreed upon. The market has partially self-corrected — as equipment costs have fallen and DR systems with better native DICOM Send functionality have proliferated, the worst of the early non-compliance has diminished. But partial compliance, proprietary workarounds, and JPEG submission continue in corners of the market where no one is requiring anything better.

The New Money: Private Equity Reshapes Veterinary Teleradiology

The consolidation story in veterinary teleradiology is not only a story of large corporate acquirers like IDEXX and Mars. It is also a story of private equity identifying a growing market and executing a deliberate, multi-stage ownership transition strategy — one that is now clearly visible in publicly available financial records.

Vet’s Choice Radiology was founded in 2018 with an aggressive go-to-market posture built around guaranteed turnaround times and a no-contract model designed to appeal to practices frustrated with the service limitations of larger providers. The company grew quickly under its initial private equity backer, DFW Capital Partners.

Public SEC filings from Gladstone Capital Corporation (Nasdaq: GLAD), a publicly-traded business development company, document the first major capital transition. Gladstone carried a $42.8 million secured first lien term loan to Vet’s Choice Radiology LLC — at one point representing approximately 7.6% of the Gladstone Alternative Income Fund’s portfolio and ranking among the fund’s top ten holdings. According to credit intelligence firm Octus, which published a comprehensive analysis of private-credit exposure to veterinary platforms in January 2026, VCR’s debt was trading at 100.8% of par as of September 30, 2025 — above par, and the strongest-performing credit in the specialty veterinary segment among all BDC-held veterinary companies analyzed. In the same Octus report, Vet’s Choice Radiology’s current private equity sponsor is identified as Corbel Capital Partners — not DFW Capital Partners.

According to Gladstone’s Form 10-Q filed with the SEC on February 4, 2026, the $42.8 million debt investment paid off at par in January 2026, with a $0.9 million prepayment penalty indicating early retirement. The picture these public records assemble is coherent: the Gladstone loan was the debt instrument used to facilitate the buyout of the founding DFW Capital Partners ownership position, with Corbel Capital Partners stepping in as the new sponsor. The January 2026 prepayment marks the completion of that ownership transition and the beginning of Corbel’s operational chapter.

The leadership changes that followed in rapid succession are consistent with a new PE sponsor installing its own executive team. On January 16, 2026, the company announced that Georgia Wraight had joined as chief executive officer. Wraight brings a corporate animal health background spanning Covetrus, Vets First Choice, and Clarus Technology. On February 13, 2026, VCR added Julie Wnek as chief financial officer and Nathan Seymour as chief revenue officer — who previously served as director of telemedicine at IDEXX. Both announcements described the appointments as part of VCR’s “next phase of growth and investment,” with explicit plans to expand technology infrastructure, system integration, and clinical capacity.

For veterinary practices that choose their teleradiology provider based on price, turnaround guarantees, and radiologist quality, none of this ownership transition is visible in the service brand. The marketing continues to emphasize no-contract flexibility and clinical excellence. What the public record now makes clear is that VCR has completed a full private equity ownership change — from DFW Capital Partners to Corbel Capital Partners — installed an entirely new C-suite, and is operating under a sponsor with explicitly stated ambitions to scale. Whether that trajectory leads to organic growth, a roll-up of smaller teleradiology competitors, a strategic acquisition by one of the industry’s large corporate players, or another capital event in three to five years is a question the profession would benefit from tracking.

The Questions That Remain

The arc of veterinary teleradiology from 1994 to today is remarkable in its speed and in the structural changes it has produced. A market that began with a single modem-to-modem system in rural Illinois now encompasses hundreds of thousands of consults annually, cloud-based PACS systems storing hundreds of millions of images, AI-assisted pre-screening tools, and a competitive landscape shaped by two massive corporate ecosystems, ongoing private capital investment, and a persistent gap in regulatory oversight.

The pioneers who built this market — VDIC, DarkHorse Medical Ventures, VetRad, DVMInsight, PetRays, VitalRads, and the many independent radiologists who hung their own shingles on open platforms — created something valuable: specialist access for practices and patients who had never had it. Many of those independent voices have been acquired, absorbed, or crowded out. The infrastructure they built often persists, but under different ownership and different incentive structures.

DICOM itself remains what it was always intended to be: an open standard that allows a veterinary clinic to send its images to any radiologist they choose. Whether market structures in practice honor that freedom — or whether commercial relationships between equipment vendors, teleradiology services, and hospital chains effectively restrict it — is a question the profession has not yet fully answered. And whether the financial architecture behind the services veterinarians use daily is compatible with the professional standards those services are supposed to uphold is a question the profession has barely started asking.

The FTC has demonstrated that it is paying attention to veterinary services consolidation. The ACVR’s foundational commitment to open standards was a statement about the kind of market the profession deserved. The radiologists who built independent practices on open platforms were making the same argument with their careers.

What comes next will depend on whether the profession — and the regulators who watch it — continue to ask.

Veterinary Teleradiology is an independent industry publication. This article reflects original editorial research and analysis. We welcome corrections and additional historical information from individuals who participated in the early development of the veterinary teleradiology market.