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Chapter 7 Utility
Volume Method
Specify an equation that will be used for volume calculation.
X 3 Distance: The volume is calculated using three diameters in the longitudinal and transverse planes
(4 / 3 x π x A/2 x B/2 x C/2).
X 3 Distance x Factor: The volume is calculated using three diameters in the longitudinal and transversal
planes, and a factor (F) value entered by the user (A x B x C x Factor).
X Ellipsoid: The volume is calculated using the length of the Main and Beside axes (4 / 3 x π x Main / 2
x (Beside / 2)
2
).
X Sum of 20 Disks: The volume is calculated by summing the areas in the 20 parallel planes (d / 20 x (A1
+ A2 + ... A20), d : the sum of the distances between disks).
NOTE: 3 Distances: A = 1
st
Dia. ; B = 2
nd
Dia. ; C = 3
rd
Dia.
The factor value is set to “0.523” by default. When the value needs to be changed, a value between 0
and 1 (0 < factor <= 1) is recommended.
Predicted PSA correction factor
Specify the predicted PSA correction factor for measurement of volume of the WG and T-Zone. The default
value is 0.12.
Display
Num of Measure Results Boxes
Specify the number of lines for Urology measurement results that are displayed on the screen.
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