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PRO MRI


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Products Description

Overview
Phantom for comprehensive evaluation of critical imaging parameters of magnetic resonance imaging (MRI) in a time efficient manner. The phantom can be used for the measurement of absolute values for calibration purposes. However, its design is optimized for time efficient daily quality assurance too.

Due to the large mass of the phantom, it is manufactured in three separate sections. In order to keep these sections aligned, mounting screws are included in the design.

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) :
slice thickness insert :
- 180 x 46 x 10mm PMMA plate
- 1mm wide and 5mm deep counter-descending slits on both sides
- slits form two ramps descending at 1:10 geometric distortion insert:
- 10 x 10 array of squares
- 148mm on a side
- 10mm thick
outside cylinder diameter: 220mm (180mm)
outside cylinder height: 150mm
inside cylinder diameter: 204mm (173mm)
inside cylinder height: 130mm
filled with 10 mmol nickel chloride solution containing
sodium chloride 75 mmol
T1 and T2 sample vials
- 6 cylindrical vials Ø19 x 41mm
- refillable from outside
- by default filled with 20 mmol nickel chloride and 15 mmol sodium chloride solution
Low contrast insert :
- 4 polycarbonate discs 0.05, 0.1, 0.15 and 0.2mm in thickness
- partial volume contribution of these sheets and filling solution produce contrasts: 1.4, 2.5, 3.6 and 5.1%
- each disc contains 12 groups of 3 holes arranged in spokes
- each spoke has the same diameter
- diameters range from 7.0 to 1.5mm (0.5mm step)
four sets of paired 45° wedges are located on both sides of the phantom. The lower pairs are 30 x 30mm and the upper ones are 40 x 40mm. The distance between intersection points of the lower and upper pairs is 90mm
optional 6 removable vials for test samples - replacing the "T1 and T2 sample vials”, includes 6 additional vials (12 total)
optional heavy duty carrying case
Resolution insert :
- four matrices of holes, diameters: 0.8, 0.9, 1.0 and 1.1 mm
- spaces between the holes are equal to hole diameters
- Two small containers with water and fat for water-fat shift evaluation

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 procedures for MRI facilities", 2010

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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