A Complete Guide to DICOM in Veterinary Practice

What Is DICOM and Why Should Veterinarians Care?

DICOM — Digital Imaging and Communications in Medicine — is the international standard for handling, storing, printing, and transmitting medical imaging data. Originally developed for human healthcare in the 1980s, it has become equally essential in veterinary medicine as clinics adopt digital radiography, ultrasound, CT, and MRI.

Without DICOM, your imaging equipment produces proprietary files that can only be opened with vendor-specific software. With DICOM, every image follows a standardised format that includes not just the pixel data but also metadata: patient (animal) information, study details, acquisition parameters, and more. This interoperability is what allows images to move between equipment, software, and institutions without data loss.

The Veterinary DICOM Workflow

A typical DICOM workflow in a veterinary clinic involves four stages:

1. Acquisition

Digital radiography systems (DR or CR), ultrasound machines, CT scanners, and MRI systems all produce DICOM files. When you take a radiograph, the system generates a DICOM object that contains the image plus a header with fields such as patient name, patient ID, species, study date, modality, and body part examined.

A veterinary-specific consideration here is the patient identity fields. DICOM was designed for humans, so fields like "Patient Name" must be repurposed. The most common convention is to enter the animal's name in the patient name field and the owner's name or clinic ID in the patient ID field. Consistency in this naming convention is critical for retrieval.

2. Storage (PACS)

PACS — Picture Archiving and Communication System — is the server that stores and manages your DICOM images. When an image is acquired, it is automatically sent to the PACS via the DICOM protocol (typically using a "Store SCU" command over the network).

Veterinary clinics have three main options for PACS:

• On-premise PACS: A local server in your clinic. Lower ongoing costs but requires hardware maintenance, backup management, and IT expertise.
• Cloud PACS: Images are stored on remote servers accessed via the internet. Eliminates hardware management, enables remote access, and simplifies disaster recovery. Monthly subscription cost.
• Hybrid: Local storage for speed with cloud backup for redundancy and remote access. Best of both worlds for high-volume practices.

3. Viewing

DICOM viewers are software tools for displaying and manipulating medical images. Key features to look for include:

• Window/level adjustment: Adjusting brightness and contrast to visualise different tissue densities (bone, soft tissue, lung).
• Measurement tools: Rulers, angles, and area calculations for quantitative assessment.
• Multi-frame support: Viewing ultrasound cine loops and CT/MRI series as scrollable stacks.
• Comparison: Side-by-side or synchronised viewing of current and prior studies.
• Annotations: Adding arrows, text labels, and region-of-interest markers.

Web-based DICOM viewers have become increasingly popular because they require no software installation. The veterinarian opens a browser, selects the study, and views images with full diagnostic-quality tools. This is especially valuable for remote consultations and referral workflows.

4. Sharing and Referral

When referring a case to a specialist or seeking a second opinion, you need to share DICOM images. Traditional methods included burning CDs — a process that is slow, unreliable, and increasingly impractical as computers drop optical drives. Modern approaches include:

• DICOM Send: Pushing images directly from your PACS to another institution's PACS over the network.
• Secure web links: Generating a shareable URL that gives the recipient access to a web-based viewer with the relevant study loaded.
• Cloud-to-cloud: If both parties use cloud PACS, sharing can be as simple as granting access permissions.

Common Pitfalls in Veterinary DICOM Implementation

Inconsistent patient data entry

The single biggest problem in veterinary DICOM is inconsistent naming. If "Buddy" is entered as "Buddy Smith" on one study and "Buddy (Dog)" on another, the PACS treats them as different patients. Establish a clinic-wide naming protocol and enforce it rigorously.

Network configuration issues

DICOM devices communicate using a combination of IP address, port number, and AE Title (Application Entity Title). Misconfigured AE Titles are the most common reason images fail to transfer between devices. Document your DICOM network configuration and keep it updated when equipment changes.

Storage planning

A single digital radiograph is typically 10-30 MB. A CT study can be 200-500 MB or more. If your clinic performs 20 radiographic studies per day, that is 200-600 MB daily — approximately 50-150 GB per year for radiographs alone. Plan your storage capacity with a three-to-five year horizon and budget for growth.

Backup and disaster recovery

Losing imaging data is catastrophic — both clinically and financially. Follow the 3-2-1 backup rule: three copies of data, on two different types of media, with one copy off-site. Cloud PACS typically handles this automatically, which is one of their strongest selling points.

AI-Enhanced DICOM Workflows

The latest development in veterinary imaging is the integration of AI analysis directly into the DICOM workflow. After an image is acquired and stored, an AI service can automatically analyse it for common findings — for example, detecting cardiomegaly on a thoracic radiograph or identifying fracture lines on an extremity study.

These AI findings are typically presented as an overlay or a structured report alongside the original image, allowing the veterinarian to use them as a second-opinion tool during interpretation. The AI does not make diagnoses; it highlights areas of interest that may warrant closer examination.

Choosing the Right DICOM Solution

When evaluating DICOM solutions for your veterinary practice, consider these factors:

• Compatibility: Will it work with your existing imaging equipment? Ask for a DICOM conformance statement.
• Ease of use: Can your staff learn it quickly? A powerful system that nobody uses is worthless.
• Remote access: Can you review images from home or on mobile devices?
• Integration: Does it connect with your practice management system to pull patient data automatically?
• Support: Does the vendor understand veterinary workflows, or are they purely a human healthcare company?
• Cost structure: Up-front purchase vs. monthly subscription, per-study fees, storage limits.

Moving Forward

DICOM implementation does not have to be overwhelming. Start by understanding your clinic's imaging volume and workflow, choose a solution that fits your current needs with room to grow, and invest time in staff training and consistent data entry protocols. The payoff — faster image access, seamless referral workflows, and the foundation for AI-assisted interpretation — is well worth the effort.