Vatech A9 (PHT-30CSS)
Technical manual
VDH-TeM-098
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10. Capture the CT Number phantom and evaluate CT Number accuracy.
(refer to 5. CT Number Accuracy evaluation.)
※
CT Number standard value
Parameter
LSL(Lower Specification Limit)
USL(Upper Specification Limit)
Air
-1030
-900
Water
-20
20
Teflon(Bone)
900
1100
11. If CT Number does not meet the standard as above, adjust the CT Number value.