Capintec CAPTUS 600 - Page 98

CAPINTEC, INC. CAPTUS
®
600
14:32
THYROID UPTAKE
DASILVA, AND
START
EXIT
PROTOCOL: 1 CAPSULE
MEASURE
NECK
AT: 25 CM
COUNTING REPETITION # 1 / 2
Figure 8-13
Note:
Figure 8-13 calls for “COUNTING REPETITION #1”. Some protocols call for
repetitions of each measurement so that results can be averaged. In such protocols,
all measurements except room background counts are repeated.
Position the Probe over the thyroid gland at the distance shown on the screen and press the
F4 [START] key.
A graph that plots total counts (vertical axis) versus energy levels (horizontal axis) appears
on the screen (
Figure 8-14). The energy scale is marked on the horizontal axis and depends
on the nuclide. The counting period set up in the protocol appears to the right of the graph (in
this example, 60 seconds). The counts per minute value and the plotted points on the graph
are updated each second. (If Live Time was chosen as the Counting Time Base instead of
Real Time, the counting period does not appear on the screen.)
When the counting period is finished,
Figure 8-15 will appear.
NECK
ABORT
400 keV
5111 cpm
dt: 3%
50sec
100
NECK
400 keV
OK?
(Y OR N)
6557 cpm
100
Figure 8-15 Figure 8-14
If the final count value does not appear to be correct, press N and ENTER. The system will
return to
Figure 8-13 so that the measurement can be performed again.
8-8 THYROID UPTAKE GENERAL INSTRUCTIONS November 07