OB Measurements
150
LOGIQ
t
α
100 User Manual
2211157–100 Rev 0
Estimated Fetal Weight (BPD/AC/FL)
The Estimated Fetal Weight #4 (EFW) is computed using
a Hadlock, Harris, Sharman, Deter and Park model.
“Estimation of fetal weight with the use of head, body
and femur measurements–A prospective study”.
(American Journal of Obstetrics and Gynecology 151:
333, 1985)
EFW is determined according to the equation:
EFW=10^(1.335–(0.0034*AC*FL) +
(0.0316*BPD)+(0.457*AC)+(0.1623*FL)).
The above formula yields EFW in grams when the BPD,
AC and FL are in centimeters.
When EFW is selected, this calculation is made only if
BPD/AC/FL are the only available measurements.
Estimated Fetal Weight (BPD/HC/AC/FL)
The Estimated Fetal Weight #5 (EFW) is computed using
a Hadlock, Harris, Sharman, Deter and Park model.
“Estimation of fetal weight with the use of head, body
and femur measurements–A prospective study”.
(American Journal of Obstetrics and Gynecology 151:
333, 1985)
EFW is determined according to the equation:
EFW=10^(1.3596–( 0.00386*AC*FL)+( 0.0064*HC)
+(0.00061*BPD*AC)+(0.0424*AC)+(0.174*FL)
The above formula yields EFW in grams, when the BPD,
HC, AC and FL measurements are in cm.
When EFW is selected, this calculation is made only if
BPD/HC/AC/FL are the only available measurements.
All OB Calculations are calculated with average values.
For example, if two BPD values are available, the system
uses the average of those values. If it is desired to only
use a single measurement for calculation, deselect the
values in the Measurement Averaging Page that should
not be averaged.
.
Summary of Contents for LOGIQ A100
Page 18: ...Introduction LOGIQt α100 User Manual 2211157 100 Rev 0 2 This page left blank intentionally ...
Page 54: ...Safety LOGIQt α100 User Manual 2211157 100 Rev 0 38 This page left blank intentionally ...
Page 74: ...Device Labels 58 LOGIQt α100 User Manual 2211157 100 Rev 0 This page left blank intentionally ...
Page 76: ...Safety LOGIQt α100 User Manual 2211157 100 Rev 0 60 This page left blank intentionally ...
Page 88: ...Image Display 72 LOGIQt α100 User Manual 2211157 100 Rev 0 This page left blank intentionally ...
Page 146: ...OB LOGIQt α100 User Manual 2211157 100 Rev 0 130 This page left blank intentionally ...
Page 236: ...Cardiology 220 LOGIQt α100 User Manual 2211157 100 Rev 0 This page left blank intentionally ...
Page 248: ...Urology LOGIQt α100 User Manual 2211157 100 Rev 0 232 This page left blank intentionally ...
Page 251: ...LOGIQt α100 User Manual 2211157 100 Rev 0 235 Control Keys Configuration Using Control Keys ...
Page 252: ...Control Keys LOGIQt α100 User Manual 2211157 100 Rev 0 236 This page left blank intentionally ...
Page 298: ...Probes 282 LOGIQt α100 User Manual 2211157 100 Rev 0 This page left blank intentionally ...
Page 344: ...Maintenance 328 LOGIQt α100 User Manual 2211157 100 Rev 0 This page left blank intentionally ...
Page 346: ...OB Tables LOGIQt α100 User Manual 2211157 100 Rev 0 330 This page left blank intentionally ...
Page 400: ...OB Tables 384 LOGIQt α100 User Manual 2211157 100 Rev 0 This page left blank intentionally ...
Page 408: ...Index Index 8 LOGIQt α100 User Manual 2211157 100 Rev 0 This page left blank intentionally ...