The smallest PET.

Combining cutting-edge technology with simplicity, we at Positrigo work to bring the smallest and most affordable brain PET scanner to the people.

Cutting-edge technology.

Dementia is a major problem in our aging societies costing nearly a trillion USD worldwide per year. Treatments are on the horizon, but an affordable and widely available diagnostic technique is still missing. Positrigo’s brain positron emission tomography system offers functional brain imaging to everyone at a fraction of today’s cost.

Based on a prototype developed at ETH Zurich, Positrigo strives for the certification of it’s imaging system as a medical device under CE and FDA regulations and enter the markets by 2022/23.

click -> WE ARE HIRING (during COVID-19!) 


Dr. Jannis Fischer

Founder & CEO

Jannis studied physics at FU and HU Berlin with exchanges to ETH Zurich, University of California Los Angeles, and CERN. During is PhD at ETH Zurich, he worked on the development of SAFIR, a small animal PET system with unprecedented temporal resolution. BPET (a SAFIR spin-off) started in 2017 with the grant of an ETH Pioneer Fellowship to Max and Jannis. Since then other awards have followed, e.g. VentureKick and Forbes Europe 30 under 30. Jannis works mainly on BPET electronics, image reconstruction, and business development.

Dr. Max Ahnen

Founder & CoO

After studying physics at the TU Munich, the Max Planck Institute for Physics, and Durham University, Max became a PhD student on gamma-ray Cherenkov telescopes at the ETH Zurich Institute for Particle Physics. Upon finishing his PhD, Max, together with Jannis, was awarded the 2017 ETH Pioneer Fellowship for the Brain PET Project.  VentureKick and Forbes Europe 30 under 30 followed. Max spends his time advancing the business, writing software, and developing the BPET scanner.

Dr. Ekaterina Mikhaylova


Ekaterina earned her Ph.D. in Physics with an emphasis on Medical Imaging from the Institute for High Energy Physics of Barcelona in Spain. After finishing the doctoral studies Ekaterina joined the MEDISIP group at University of Ghent as a postdoctoral researcher. From 2016 to 2019 she continued her career in the field of Medical Imaging at the University of California, Davis. In 2020 Ekaterina joined Positrigo as a Nuclear Medical Imaging Research Lead. 

Elena Bernasconi


Elena studied Health Science and Technology at ETH Zurich with a Major in Neuroscience and has spent an exchange semester at the University of Melbourne. After finishing her master degree, she joined Positrigo in 2020 as a Trainee in Clinical, Regulatory and Quality Affairs (CARAQA).

Prof. Dr. Bruno Weber


Co-Founder of Swisstrace and Professor at the Institute for Pharmacology and Toxicology at University of Zurich, Weber brings together expertise from PET imaging, biology, and business.

Dr. Werner Lustermann


Senior scientist and responsible for the engineers and technicians pool at the Institute of Particle Physics and Astrophysics, with 20+ years experience. He has a track record of ground breaking detectors included in the CMS experiment at CERN, AMS1 aboard a NASA Space Shuttle Mission, AMS2 operational on the International Space Station, the First G-APD Cherenkov Telescope on La Palma, and the ambitious SAFIR PET scanner.

Prof. Dr. Günther Dissertori


Professor for Particle Physics at ETH Zurich, Dissertori brings 20+ years of experience in particle physics into our project. The current head of the Institute of Particle Physics and Astrophysics at ETH and former Deputy Spokesperson of the CMS experiment at CERN.

Prof. em. Dr. Alfred Buck


Co-Founder of Swisstrace and Professor and Director at the Nuclear Medicine section of the University Hospital Zurich. Buck helps the team build a device from clinicians, for clinicians.

Urs Suter

Chairman of the Board

Former CEO and chairman of the board of directors at Siemens Healthcare AG and Healthcare Diagnostics GmbH.

Michael Stucky


Michael was CFO and co-founder of GlycoVaxyn, a Swiss biotech start-up and ETH spinoff (sold to GSK), as well as a co-founder of Silicon Valley software start-ups. Prior to this, Michael spent 10 years at Swiss bank Lombard Odier Darier Hentsch, both in Switzerland and North America. Michael holds Masters’ degrees from the Stanford Graduate School of Business and the University of Zurich. He is our Innosuisse coach.

Prof. Dr. Kris Thielemans


Internationally recognized expert in data processing techniques for PET, with previous experience in Theoretical Physics. Finding innovative and practically achievable ways to improve quantitative and diagnostic image quality. Advisor to a world-wide team of scientists to develop, implement and test new algorithms, and to present results to stakeholders. Kris is Professor in Medical Imaging Physics at UCL and founder of Algorithms and Software Consulting Ltd.


Positrigo AG
Techoparkstrasse 1
8005 Zurich

Board of Directors

Urs Suter (President)

Max Ahnen

Alfred Buck

Jean-Pierre Rosat

Bin Sheng

Contact us


Phone: +41 44 51 55 330

Our technology was developed at ETH Zurich with support from University of Zurich and University Hospital of Zurich. 

We are furthermore supported by:

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreements No. 855292 and No. 953844