134 Measurement publications and terminology
Anteroposterior Trunk Diameter (APTD)
UniversityofTokyo,Shinozuka,N.FJSUM,etal.
“StandardValuesofUltrasonographicFetal
Biometry.”JapaneseJournalofMedicalUltrasonics,
23:12(1996),885.
Biparietal Diameter (BPD)
Chitty,L.S.andD.G.Altman.“Newchartsfor
ultrasounddatingofpregnancy. ”Ultrasoundin
ObstetricsandGynecology10:(1997),174‐179,
Table3.
Hadlock,F.,etal.“EstimatingFetalAge:
Computer‐AssistedAnalysisofMultipleFetal
GrowthParameters.”Radiology,152:(1 984),
497‐501.
Hansmann,M.,etal.UltrasoundDiagnosisin
ObstetricsandGynecology.NewYork:
Springer‐Verlag,(1985),4 40.
OsakaUniversity.UltrasoundinObstetricsand
Gynecology.(July 20,1990),98.
UniversityofTokyo,Shinozuka,N.FJSUM,etal.
“StandardValuesofUltrasonographicFetal
Biometry.”JapaneseJournalofMedicalUltrasonics,
23:12(1996),885.
Crown Rump Length (CRL)
Hadlock,F.,etal.“FetalCrown‐RumpLength:
Re‐evaluationofRelationtoMenstrualAge(5‐18
weeks)withHigh‐Resolution,Real‐Time
Ultrasound.”Radiology,182:(February19 92),
501‐505.
Hansmann,M.,etal.UltrasoundDiagnosisin
ObstetricsandGynecology. NewYork:
Springer‐Verlag,(1985),439.
OsakaUniversity.UltrasoundinObstetrics
and
Gynecology.(July20,1990),20and96.
TokyoUniversity.“GestationalWeeksand
ComputationMethods.”UltrasoundImaging
Diagnostics,12:1(1982‐1),24‐25,Table3.
Femur Length (FL)
Chitty,L.S.andD.G.Altman.“Newchartsfor
ultrasounddatingofpregnancy.”Ultrasoundin
ObstetricsandGynecology10:(1997),174‐179,
Table8,186.
Hadlock,F.,etal.“EstimatingFetalAge:
Computer‐AssistedAnalysisofMultipleFetal
GrowthParameters.”Radiology,152:(1984),
497‐501.
Hansmann,M.,etal.UltrasoundDiagnosis
in
ObstetricsandGynecology. NewYork:
Springer‐Verlag,(1985),431.
OsakaUniversity.UltrasoundinObstetricsand
Gynecology.(July 20,1990),101‐102.
UniversityofTokyo,Shinozuka,N.FJSUM,etal.
“StandardValuesofUltrasonographicFetal
Biometry.”JapaneseJournalofMedicalUltrasonics,
23:12(1996),886.
Fetal Trunk Cross-Sectional Area (FTA)
OsakaUniversity.UltrasoundinObstetricsand
Gynecology.(July 20,1990),99‐100.
Gestational Sac (GS)
Hansmann,M.,etal.UltrasoundDiagnosisin
ObstetricsandGynecology. NewYork:
Springer‐Verlag,(1985).
WARNING:
The gestational age calculated by
your SonoSite system does not
match the age in the
aforementioned reference at the
20.0 cm and 30.0 cm abdominal
circumference (AC) measurements.
The implemented algorithm
extrapolates the gestational age
from the slope of the curve of all
table measurements, rather than
decreasing the gestational age for a
larger AC measurement indicated in
the referenced table. This results in
the gestational age always
increasing with an increase in AC.
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