توضیحات

Jaszczak Phantom

The Jaszczak SPECT Phantom provides consistent performance information for any SPECT or PET system.

Multiple performance characteristics of camera-based SPECT systems are evaluated from a single scan of the phantom.

On-axis and off-axis transverse line spread function may be easily measured without removing the cover plate. Measurements of full-width-half (or tenth) maximum can be readily determined, either in air or in water.

SPECT Phantom types:

SPECT Phantoms are available in two models. The Deluxe Phantom is used for high resolution cameras. The Standard Phantom is used for lower resolution cameras.

SPECIFICATIONS of the Jaszczak Phantom:

Cylinder Interior Dimensions: 8.5″ dia x 7.32″ h (21.6 x 18.6 cm)
Cylinder Wall Thickness: 0.125″ (3.2 mm)
Volume: 6.9 L
Volume with Inserts: 6.1 L
Cold Rod Insert Height: 3.46″ h (8.8 cm)
Height of Spheres from Base Plate: 5″ h (12.7 cm)

SPECIFICATIONS of the Deluxe Phantom:

Cold Rod Dimensions: 4.8 mm, 6.4 mm, 7.9 mm, 9.5 mm, 11.1 mm, 12.7 mm
Solid Sphere Diameters: 9.5mm, 12.7 mm, 15.9 mm, 19.1 mm, 25.4 mm, 31.8 mm
Shipping Weight: 15 lb (6.9 kg)
Cold Rod Dimensions: 6.4 mm, 7.9 mm, 9.5 mm, 11.1 mm, 12.7 mm, 16.0 mm
Solid Sphere Diameters: 12.7 mm, 15.9 mm, 19.1 mm, 25.4 mm, 31.8 mm, 38 mm

The Jaszczak Phantom is used for:

– System performance valuation of:
Collimator, Artifacts, Calibration, and Reconstruction Parameters
– Acceptance testing
– Routine quality, assurance and control
– Evaluation of:
– Center-of-rotation ( COR ) error
– Non-uniformity artifact
– Changes of radius-of-rotation on spatial resolution
– Reconstruction filters on spatial resolution
– Attenuation and scatter compensation
– Single slice volume sensitivity
– Total system volume sensitivity
– Lesion detectability