101/180 Multi-Geometry

101 degrees and 180 degrees for maximum throughput and clinical coverage:

The Millennium MG features dual, variable geometry detectors that are externally mounted. It is pre-programmed for 180° positioning for uncompromised Whole-Body exams and also for the unique 101® angle, the optimum use of detectors for SPECT studies on a variable geometry system.

The Millennium MG's dual-head detectors lets you capture data at a unique 101 degrees for cardiac SPECT, and at a 180 degrees for whole-body, planar and general purpose SPECT.

101/180 Multi-Geometry

Why 101 degrees and not 90 degrees?

This is, very simply, an ideal angle for cardiac SPECT when using variable-geometry systems, because it increases sensitivity by 25%. The reason: The 101-degree configuration allows the detectors to be positioned closer to the patient, which - in addition to the square Millennium detectors' minimizing of dead space - eliminates the need for sensitivity-suppressing long-bore collimators. The results: improved image quality and faster acquisitions.

Left: Conventional variable-geometry configurations leave you with a large dead space (blue area). The only solution is moving the detector away from the patient or investing in special long-bore collimators, which decrease sensitivity.

Right: Millennium MG detectors' 101-degree geometry minimizes this dead space even when they are positioned near the patient, increasing sensitivity by 25%