Products Description

This stability (agar) phantom consists of a cylindrical phantom and agar material inside. Using this phantom a Signal to Noise Ratio, Signal Fluctuation to Noise Ratio, drift, and other imaging measures over a 100-volume or 200-volume fMRI scan can be performed. The agar phantom has characteristics similar to the T2 measures of a human head, but provides no change in signal. The T1 and T2 characteristics of the agar phantom at 3T are ~900 ms T1 and 30 ms T2

It can be used to measure :
Geometric Distortion
Spatial Resolution
Slice thickness and position
Interslice Gap
T1 and T2 values
Estimate of Image Bandwidth

Low Contrast Detectability
Image Uniformity
Signal-to-Noise Ratio (SNR)
Physical and Electronic Slice Offset
Point of reference
Bandwidth: water-fat shift

Technical data (can be modified to customer specifications) :
Overall cylinder dimensions: 140mm in diameter, 150mm in height
Cylinder made of PMMA
Filled with agar gel with T1 and T2 characteristic at 3T of ~900 ms T1 and 30 ms T2.
Optional carrying case

Product Features :
Complies with :
- ACR MRI Accreditation Program
- IPEM Report 80 "Quality Control in MRI", 1998
- AAPM Rep. 28 "Quality Assurance methods & phantoms for MRI", 1990
- AAPM Rep. 34 "Acceptance testing of MRI systems", 1992
- AAPM Rep. 100 “Acceptance & Quality Assurance

Certified :
- CE (declaration of conformity according to ISO/IEC 17050-1)

The Manual :
- Provides detailed guidelines for carrying out each test, results assessment and registration


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