Whole-body tomography PET/CT scanner uMI 550

for brain tomographyfor cardiovascular tomography80-slice

Overview
uMI 550 is a clinical digital PET/CT scanner that combines an SiPM‑based Integrated‑Light‑Guide digital PET detector with an 80‑slice CT equipped with a Z‑Detector. The system is designed to improve lesion detectability and diagnostic CT low‑contrast performance while supporting efficient, reproducible workflows for routine oncology and neuro/cardiac studies.

Key technologies

• SiPM‑based Integrated‑Light‑Guide digital PET detector for enhanced light collection
• Integrated‑Light‑Guide design to improve spatial and time resolution
• 80‑slice CT with Z‑Detector for high sampling and low‑contrast detectability
• PSF iterative reconstruction and Time‑of‑Flight (TOF) technologies
• Large axial field of view and high system sensitivity for whole‑body imaging

Integrated‑Light‑Guide Digital PET Detector — Highlights

• Improved light collection efficiency and spatial resolution for high‑quality PET images
• SiPM technology increases photoelectric conversion efficiency and reduces signal loss
• Ultra‑fine, high‑precision crystals to enhance image resolution and small‑lesion visibility
• Modular detector design for straightforward maintenance and high system uptime

80‑slice CT with Z‑Detector — Highlights

• Ultra‑low electronic noise architecture for improved image quality at low dose
• High‑performance scintillator materials (GOS) for efficient X‑ray conversion and fast response
• Fine voxel sampling for detailed visualization of subtle anatomic structures

Imaging performance & workflow

• 2.9 mm NEMA spatial resolution enabled by the digital PET detector
• PSF iterative reconstruction supporting effective spatial resolution down to ~1.4 mm to enhance small lesion detectability
• Time‑of‑Flight (TOF) for faster convergence, improved contrast‑to‑noise ratio and reduced image noise
• 24 cm axial field of view and high sensitivity enable whole‑body scans in 4 bed positions for fast throughput
• High sensitivity supports low‑dose PET protocols
• Automatic quality control workflow: daily automatic QC without radioactive source; periodic full QC supporting liquid 18F and solid 68Ge sources; rapid NEMA tool for convenient checks
• Data‑driven head motion correction from list‑mode data (no external hardware required)
• Intelligent motion artifact reduction with digital self‑gating to detect respiratory motion and mitigate metal artifacts
• Integrated oncology applications for tumor diagnosis and post‑therapeutic evaluation on the console

Clinical applications (illustrated case studies)

• Esophageal cancer imaging
• Lymphoma imaging
• Rectal cancer imaging
• Lung cancer imaging
• Brain imaging
• Cardiac viability imaging

Technical specifications

• Model name: uMI 550
• Digital PET detector: SiPM based, Integrated‑Light‑Guide detector
• Reported PET NEMA resolution: 2.9 mm
• Effective spatial resolution with PSF reconstruction: ~1.4 mm (reported)
• CT: 80‑slice with Z‑Detector
• Axial field of view (PET): 24 cm
• Whole‑body scanning capability: 4 bed positions
• QC: Automatic daily QC without radioactive source; periodic full QC supports 18F (liquid) and 68Ge (solid)
• Motion correction: data‑driven head motion correction and self‑gating respiratory motion detection
• Key technologies: TOF, PSF iterative reconstruction, fine voxel sampling, GOS‑based X‑ray detector