Wound & Burn Photo

What it does

Wound & Burn Photo reads photographs of chronic wounds and burns: diabetic foot ulcers, pressure injuries, venous and arterial leg ulcers, and acute burns. Photograph the wound straight on with a calibration marker beside it; add the photos from the previous visit to see the trend.

The run outlines the wound bed and measures its area in cm², its length, width and perimeter. It maps the tissue in the bed (granulation, slough or fibrin, necrosis or eschar, epithelium, callus, maceration) as percentages, then adds the assessment that the wound type calls for: infection and ischaemia flags on a diabetic foot, an NPIAP stage on a pressure injury, depth classes and a %TBSA estimate on a burn. Against the prior visit it reports the change in area and tissue, including the percentage area reduction at four weeks.

Intended use

Decision support and documentation for the clinicians who see the wound at every visit, mostly wound-care nurses, podiatrists and junior doctors, and for ED doctors assessing a burn. Measured size and tissue data document every visit and show when healing has stalled, and the diabetic-foot and burn sections add an urgency level and transfer prompts.

Who it is for

Wound-care and tissue-viability nurses, podiatrists, diabetic-foot teams, vascular and plastic surgeons, burn teams, emergency physicians and home-health services. Developers can add measured wound documentation to an EHR, a home-care app or a wound clinic system.

Accepted input

• Photos: JPEG, PNG, HEIC or WebP from a phone or camera, or DICOM VL Photographic Image (XC) objects.
• One wound per request, with one or more photos; burns can be photographed from several views.
• Prior visit: earlier photos of the same wound in prior_files for the healing section.

Requirements

Requirement	Why
Calibration sticker or ruler in the plane of the wound	Area, length and width in cm; without it, values are in pixels and flagged
Camera perpendicular to the wound	Oblique photos shrink the measured area
Even, neutral lighting	Lighting changes the colour of granulation, slough and necrosis
Whole-body coverage for %TBSA	A burn estimate needs every burned region in view

Wound depth and undermining are not part of the photo read.

Optional context

Wound type and location, duration, diabetes, known peripheral arterial disease and the date of the previous visit in clinical_context. For burns, age and the mechanism of injury help frame the referral prompt.

The result

One JSON result with masks over the photo, measurements and a persistent wound identity for follow-up visits.

Section	Content
Wound size	Wound-bed mask, area in cm², length × width and perimeter
Tissue composition	Tissue map and percentages of granulation, slough/fibrin, necrosis/eschar, epithelium, callus and maceration
Diabetic foot	Ulcer detection, infection and ischaemia flags, and an urgency level
Pressure injury stage	NPIAP stage 1–4, unstageable or deep tissue injury
Burns	Burn mask, depth class per region and a %TBSA estimate when the views allow, with transfer and fluid-resuscitation prompts
Healing since last visit	Change in area (%) and tissue, and the healing trajectory, such as percentage area reduction at four weeks
Draft report	Opt-in (options.report): an English narrative that interprets the result for the reader (findings, impression, limitations); every number is checked against the findings

Standards

• Wound bed: TIME framework for tissue and healing.
• Pressure injuries: NPIAP 2016 staging.
• Diabetic foot: IWGDF/IDSA 2023 classification of diabetes-related foot infection.
• Burns: depth as superficial, superficial partial-thickness, deep partial-thickness or full-thickness; %TBSA by the Lund–Browder chart or the rule of nines.
• DICOM and FHIR: SEG for wound, tissue and burn masks, SR TID 1500 with TID 1410 planar measurements, Encapsulated PDF; FHIR Observation for measurements and BodyStructure for the wound across visits; LOINC for wound measurements.