Download - TBS Medical Case Study
Case Study Begins
Product Comparison
Competitor 1717 GOS
iRay Venu 1717M GOS
VSSpatial Resolution Test
Contrast Resolution Test
Linearity Test
Testing Environment
kit • Testing Kit• EZ CR/DR "DIN" Test Tool 07-605-
7777
XRay • XRay Unit• FIDEX – VET CT, DR and fluoroscopy
imaging, all in one system
Spatial Resolution Test
• 100 KV, 35mA and 1.40mAs• No copper filtration for low frequency XRAY
Spatial Resolution TestCompetitor 1717 GOS3.5 LP/MM
iRay Venu 1717M GOS3.5LP/MM
Spatial Resolution Test
Contrast Resolution Test
• 110KV, 1.5mAs• No copper filtration for low frequency XRAY
Circular Phantom - 1
Competitor 1717 GOS iRay Venu 1717M GOS
Soutside 2198(sout-s)/sout
(sout-s)/sqrt((σout^2+σ^2)/2)
2013(sout-s)/sout
(sout-s)/sqrt((σout^2+σ^2)/2)
σoutside 12.30 10
S1 2193
0.63% 1.10
1946
0.61% 1.26σ1 12.50 9.47
S1out 2207 1958
σ1out 13 9.59
S2 2175
0.91% 1.54
1956
0.86% 1.73 σ2 13 9.66
S2out 2195 1973
σ2out 13 10
S3 2154
1.28% 2.29
1959
1.31% 2.68 σ3 11.80 10
S3out 2182 1985
σ3out 12.59 9.42
Competitor 1717 GOS iRay Venu 1717M GOS
Soutside 2198(sout-s)/sout
(sout-s)/sqrt((σout^2+σ^2)/2)
2013(sout-s)/sout
(sout-s)/sqrt((σout^2+σ^2)/2)
σoutside 12.30 10
S4 2126
2.12% 3.65
1959
1.95% 3.92 σ4 12.60 9.91
S4out 2172 1998
σ4out 12.60 10
S5 2115
1.99% 3.37
1967
2.04% 4.18σ5 13 10
S5out 2158 2008
σ5out 12.50 9.59
S6 2070
3.23% 5.52
1958
3.12% 6.30σ6 12.30 9.75
S6out 2139 2021
σ6out 12.70 10.23
Circular Phantom - 2
Competitor 1717 GOS iRay Venu 1717M GOS
Soutside 2152(sout-s)/sout (sout-s)/sqrt
((σout^2+σ^2)/2)
1980(sout-s)/sout
(sout-s)/sqrt((σout^2+σ^2)/2)
σoutside 14.11 11
S1 80362.69% 85.61
75062.12% 117.01
σ1 17.25 10
S2 109649.07% 73.55
102748.13% 90.66
σ2 14.60 10
S3 162524.49% 32.93
151423.54% 42.36
σ3 17.70 11
S4 351863.48% 57.18
322762.98% 90.83
σ4 30.70 16
S5 5188141.08% 140.94
4745139.65% 153.37
σ5 27 23
S6 9847357.57% 262.39
8952352.12% 327.75
σ6 39 28
Square Phantom
Linearity Test
Competitor 1717 GOS iRay Venu 1717M GOS
mAs S1 S2 S3 mAs S1 S2 S3
0.5 310 1684 3188 0.5 300 1559 2919
1.3 700 4506 8572 1 519 3122 5902
1.5 798 5190 9847 1.5 752 4747 8954
1.6 858 5568 10400 2 984 6367 10786
2 1058 6985 10400 2.5 1219 7953 10723
Note: Saturation should occur at much higher “mAs” for both detectors if copper filtration device is installed
Linearity Test
0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.20
2000
4000
6000
8000
10000
12000
0 0.5 1 1.5 2 2.5 30
2000
4000
6000
8000
10000
12000
Series1
Series3
Series5
Saturation at 1.6 mAs Saturation at 2.0 mAs
Conclusion
•Both are at 3.5 LP/MM.
Spatial Resolution
•iRay Venu 1717M has better contrast resolution resulted from higher S/N ratio. Thus less XRAY dosage is required for similar result.
Contrast Resolution
•Both detectors perform linearly. However, iRay Venu 1717M has better dynamic range, which results better performance on thicker and higher-density objects.
Linearity
Case Study Ends