Pacific Northwest X-Ray Inc.

       Mammography Phototimer Consistency Testing Slabs.       
Computerized Imaging Reference Systems, Inc! Better than PMMA for AEC calibration

CIRS Phototimer Consistency Testing Slabs are designed for precise assessment of AEC system performance in accordance with American College of Radiology and MQSA recommendations. BR-12 (47% glandular / 53% adipose) is most commonly used but other glandular equivalencies are available. Unlike acrylic, these testing slabs are manufactured with very tight thickness tolerances and more accurately simulate real breast tissue over the range of energies used in mammography.

Mammography Artifact Evaluation Phantom






The American College of Radiology and MQSA recommend a uniform 4 cm thick "high grade" cassette sized phantom for evaluation of mammography artifacts as it is often difficult to identify artifacts based on clinical or standard phantom images.

CIRS has designed two phantoms to meet these recommendations. The small phantom measures 18 x 24 x 4 cm thick and the large phantom measures 24 x 30 x 4 cm thick.

Both are made from tissue equivalent BR-12 with a thickness tolerance of .01 mm and all phantoms are image tested and carefully screened for homogeneity and impurities. Other glandular equivalencies are available upon request.

Specifications



Illustrative example:

Elemental Composition of CIRS BR121 Formula
C: 0.704    O: 0.169    H: 0.096    N: 0.019    Ca: 0.009    Cl: 0.0020

Density = 0.97

Calculated Attenuation Values2:
keV= 10    MU= 3.550
keV= 15    MU= 1.183
keV= 20    MU= 0.610
keV= 30    MU= 0.315
keV= 40    MU= 0.239
keV= 50    MU= 0.209
keV= 60    MU= 0.193
keV= 80    MU= 0.174
keV=100   MU= 0.163





Standard Dimensions

Standard
Glandularity
Model
Quantity
Length
Width
Thickness
BR12
014A
3
12.5 cm
10 cm
2 cm
2
12.5 cm
10 cm
1 cm
1
12.5 cm
10 cm
0.5 cm
BR50/50
014AD
2
12.5 cm
10 cm
2 cm
1
12.5 cm
10 cm
2 cm (with embedded detail plate)
2
12.5 cm
10 cm
1 cm
1
12.5 cm
10 cm
0.5 cm
BR12
014B
4
12.5 cm
10 cm
2 cm
BR12
014C
2
18 cm
24 cm
2 cm
BR12
014E
2
30 cm
24 cm
2 cm
BR50/50
014F
1
12.5 cm
10 cm
2 cm (with embedded detail plate)


Stock #
Description
Your Price
014A-5050
Phototimer Consistency Testing Slabs, set of
(6) 10x12.5cm Slabs: (3) 2cm, (2) 1cm and (1) 0.5cm thick
50/50
$946.46
014A-BR12
Phototimer Consistency Testing Slabs, set of
(6) 10x12.5cm Slabs: (3) 2cm, (2) 1cm and (1) 0.5cm thick
all BR12
$946.46
014AD-5050
Phototimer Consistency Testing Slabs, set of
(6) 10x12.5cm Slabs: (1) 2cm Thick Slab with Embedded Detail Plate,
50/50 unless otherwise specified
$1,543.38
014B-5050
Phototimer Consistency Testing Slabs, set of
(4) 10x12.5x2cm thick
50% Gland, 50% Fat
$887.38
014B-BR12
Phototimer Consistency Testing Slabs, set of
(4) 10x12.5x2cm thick
All: BR12
$887.38
014C-BR12
Mammography Artifact Evaluation Phantom, set of
(2) 18x24x2cm thick
All: BR12
$887.38
014E-BR12
Mammography Artifact Evaluation Phantom: Set of (2) 24x30x2cm Slabs.
All BR12
$1,217.23
014F-5050
Mammographic Slab 12.5x10x2cm with Embedded Detail Plate
50% Gland/50% Adipose
$1,067.08







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