GE Discovery MI vs Siemens Biograph Vision

Both systems are true digital PET/CT scanners, but Siemens implements its SiPM detectors with a smaller, denser pixel pitch and faster timing, while GE's Discovery MI uses a modular ring design that lets buyers choose 3, 4, 5 or 6 rings depending on the axial coverage they need.

The Biograph Vision has the sharpest coincidence-timing resolution on the market today (~214 ps) and a 3.2 mm LSO crystal pitch — that combination drives industry-leading lesion detectability and contrast recovery.

The Discovery MI counters with modular ring architecture: buyers who need extended axial coverage can specify 5 or 6 rings without changing platform. Combined with Q.Clear regularized reconstruction, the Discovery MI produces clinically excellent images for the vast majority of FDG, PSMA and FAPI protocols at a meaningfully lower acquisition cost.

Refurbished Discovery MI systems typically sell for $700K–$1.3M depending on year and ring count. Refurbished Biograph Vision systems are rarer on the secondary market and typically command $1.1M–$1.8M. Both systems are fully supported by their OEMs and by qualified third-party service providers worldwide.

Choose the Siemens Biograph Vision for the absolute best timing resolution and contrast recovery — ideal for high-end academic centers, advanced theranostics and PET research programs willing to pay a premium.

Choose the GE Discovery MI for flagship digital PET performance at a more accessible price point, with the flexibility to scale axial coverage to your clinical mix — typically the best dollar-for-dollar digital PET/CT on the refurbished market.