Pre-clinical validation complete
Numerical simulations and lab-based pre-clinical tests confirm detection of tumours as small as 3 mm in radius, even deep in tissue. Peer-reviewed publication in progress.
Science & technologyFrom interpretation
From interpretation
to direct visual guidance.
POSICS provides direct visual information at the moment when critical decisions are made: during surgery itself. This page explains the system, the surgical workflow, and the validation milestones.
How it worksBuilt around the way surgeons
Built around the way surgeons
already work.
POSICS does not replace pre-operative imaging. It brings that information visually into the operating room, where it matters most.
1
Step 1Pre-operative imaging
Standard MRI, CT or PET imaging identifies tumour location. No change to existing protocols.
2
Step 2Radio-tracer injection
A tumour-specific radio-pharmaceutical tracer is administered before the operation, a standard practice in radio-guided surgery.
3
Step 3 — POSICSReal-time AR visualisation
The camera is placed externally on the body. The surgeon wears AR glasses and sees a live overlay of tumoral tissue, showing exactly where to cut and when to stop.
4
Step 4Completeness check
After excision, the camera can be used to verify the surgical site. A real-time completeness check, before wound closure.
An external camera.
It listens for the tracer's signal from outside the body and reconstructs, in real time, a visual map of the tumour. Nothing touches the surgical field.
A pair of AR glasses.
The image is laid directly over the patient, in the surgeon's own line of sight. No screen to glance at. No looking away.
One to four millimetres.
Fine enough to read a tumour's shape, its margins, the tissue around it. Lesions as small as 3 mm appear, even deep in tissue.
A few seconds per image.
Near real-time. The surgeon moves the camera and the image follows, without breaking the rhythm of the operation.
A position-sensitive SiPM.
Sub-millimetre resolution over a 3 × 3 cm active area, with only four readout channels — sixteen times fewer than a standard array. Compact. Light. Scalable.
Beta and low-energy gamma.
The same instrument serves the pre-operative outpatient and the operating room — one tool, many moments in the patient's path.
POSICS doesn't change how surgeons operate.
It changes what they can see while they do.
ValidationRigorous foundations. Ready for
Rigorous foundations. Ready for
clinical validation.
POSICS is not a concept. It is a working prototype backed by peer-reviewed results, competitive grants, and institutional partnerships.
Backed by the Swiss innovation ecosystem
Over CHF 600,000 in competitive grants (ATTRACT Phase 1 & 2, HEPIA). Recognition from FONGIT and Swiss Startups. HUG Prize recipient.
A multidisciplinary team
Physics, detector engineering, medical imaging, AR software development, and clinical surgery. All the disciplines needed to bring POSICS from prototype to clinical use are represented.
Clinical trials are the next milestone.
The prototype is ready. Clinical validation on human tissue is the final step before full TRL 6 readiness and hospital deployment.