User's Manual
Table Of Contents
- M-Turbo Ultrasound System User Guide
- Contents
- Introduction
- Chapter 1: Getting Started
- Chapter 2: System Setup
- Displaying the setup pages
- Restoring default settings
- A & B Key, Footswitch setup
- Administration setup
- Annotations setup
- Audio, Battery setup
- Cardiac Calculations setup
- Connectivity setup
- Date and Time setup
- Display Information setup
- IMT Calculations setup
- Network Status setup
- OB Calculations setup
- OB Custom Measurements setup
- OB Custom Tables setup
- Presets setup
- System Information setup
- USB Devices setup
- Chapter 3: Imaging
- Chapter 4: Measurements and Calculations
- Chapter 5: Troubleshooting and Maintenance
- Chapter 6: Safety
- Ergonomic safety
- Electrical safety classification
- Electrical safety
- Equipment safety
- Battery safety
- Clinical safety
- Hazardous materials
- Electromagnetic compatibility
- ALARA principle
- Acoustic artifacts
- Guidelines for reducing MI and TI
- Output display
- Transducer surface temperature rise
- Acoustic output measurement
- Acoustic output tables
- Labeling symbols
- Chapter 7: References
- Chapter 8: Specifications
- Glossary
- Index
146 Measurement publications and terminology
EDD=LMPdate+280days
Estimated Fetal Weight (EFW)
Hadlock,F.,etal.“EstimationofFetalWeight
withtheUseofHead,Body,andFemur
Measurements,AProspectiveStudy.”American
JournalofObstetricsandGynecology,151:3
(February1,1985),333‐337.
Hansmann,M.,etal.UltrasoundDiagnosisin
ObstetricsandGynecology.NewYork:
Springer‐Verlag,(1986),154.
OsakaUniversity.Ultrasound
inObstetricsand
Gynecology.(July 20,199 0),103‐105.
ShepardM.J.,V. A.Richards,R.L.Berkowitz,et
al.“A n EvaluationofTwoEquationsfor
PredictingFetalWeightbyUltrasound.”
AmericanJournalofObstetricsandGynecology,142:1
(January1,1982),47‐54.
UniversityofTokyo,Shinozuka,N.FJSUM,etal.
“Standard
ValuesofUltrasonographicFetal
Biometry.”JapaneseJournalofMedicalUltrasonics,
23:12(1996),880,Equation1.
Gestational Age (GA) by Last Menstrual
Period (LMP)
ThegestationalagederivedfromtheLMPdate
enteredonthepatientinformationform.
Resultsaredisplayedinweeksanddays,andis
calculatedasfollows:
GA(LMP)=Systemdate–LMPdate
Gestational Age (GA) by Last Menstrual
Period (LMPd) Derived from Established Due
Date (Estab. DD)
SameasGAbyEstab. DD.
Thegestationalagederivedfromthesystem
derivedLMPusingtheEstablishedDueDate
enteredonthepatientinformationform.
Resultsaredisplayedinweeksanddays,andis
calculatedasfollows:
GA(LMPd)=SystemDate–LMPd
Last Menstrual Period Derived (LMPd) by
Established Due Date (Estab. DD)
Resultsaredisplayedasmonth/day/year.
LMPd(Estab. DD)=Estab. DD–280days
Gestational age tables
Abdominal Circumference (AC)
Hadlock,F.,etal.“EstimatingFetalAge:
Computer‐AssistedAnalysisofMultipleFetal
GrowthParameters.”Radiology,152:(1984),
497‐501.
Hansmann,M.,etal.UltrasoundDiagnosisin
ObstetricsandGynecology.NewYork:
Springer‐Verlag,(1986),431.
UniversityofTokyo,Shinozuka,N.FJSUM,etal.
“StandardValuesofUltrasonographicFetal
Biometry.”Japanese
JournalofMedicalUltrasonics,
23:12(1996),885.
Anteroposterior Trunk Diameter (APTD)
UniversityofTokyo,Shinozuka,N.FJSUM,etal.
“StandardValuesofUltrasonographicFetal
Biometry.”JapaneseJournalofMedicalUltrasonics,
23:12(1996),885.
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.