Posijet® Ammonia 13N preparation and injection unit

Mainly indicated for cardiac PET diagnostic imaging, when coronary artery disease is suspected or developed, this new specific application makes Posijet® the first preparatory injection unit capable of handling ¹³N.

Despite an extremely short half-life (10 minutes), Posijet® accurately prepares the patient dose and administers it according to the strict protocol required for the success of this specific PET examination.

Posijet® is a compact, self-contained, radiation protected high-energy radiopharmaceutical fractionating and injection unit that collects, measures, dilutes and injects the required patient dose in maximum safety and reliability conditions for both the user and the patient, while guaranteeing the integrity of the radioactive drug.

Posijet® supports all Ammonia labelled tracers for cardiac PET examinations. It ensures the administration of all ammonia-based tracers under optimal radiation protection conditions for users. This version of Posijet® has been designed exclusively for the administration of ¹³N-ammonia radiopharmaceuticals.

Its development has been rigorously optimised to reduce injection time and thus minimise activity loss while maintaining the same functionality as the classic Posijet®.

A collaboration between Lemer Pax, Geneva University Hospitals and University Hospital of Zurich

Building on its collaborative work with user services worldwide, Lemer Pax once again provides technical expertise for innovation by developing in 2019 a Posijet® programme for fractionating and administration of the ¹³N-Ammonia radiopharmaceutical.

Exchanges between the Geneva University Hospitals (HUG) and the Lemer Pax development teams have enabled the routine use of ¹³N-Ammonia dose preparations with Posijet® since 2019. The hospital currently performs approximately 1,600 examinations per year, while ensuring a considerable reduction in exposure for medical staff.

Collaboration with the University Hospital of Zurich from 2020 onwards, has allowed the Posijet® Ammonia version to be further developed in two areas: optimisation of the accuracy of patient dose preparation and automatic injection from the Posijet®, in accordance with the restricted timing criteria imposed by the administration protocol for this examination.