The Obstetrical module includes accreditation for any one trimester, any combination of two trimesters, or all three trimesters:
All three trimesters: One exam for each trimester is required.
Trimester Specific: Your site will only be accredited in the specific trimester(s) you select. Required exams for trimester specific obstetrical are as follows:
One trimester only (1st, 2nd, or 3rd): Two exams (if 1st trimester, both must be transvaginal)
Any combination of two trimesters: One exam of each trimester (if 1st trimester is selected, exam must be transvaginal)
When submitting obstetrical images, choose examinations of a gestational age that allow all anatomy to be well demonstrated, as directed by the dating guidelines in the trimester specific Exam Requirements.
Complete documentation/survey means a series of several images throughout the entire organ in two planes. For example, from one side of the organ to the other in the longitudinal plane and from superior to inferior in the transverse plane.
Anatomy should be intentionally imaged in an organized fashion and correctly labeled for clarity.
Exam Requirements: Obstetrical Ultrasound Accreditation |
1st Trimester Endovaginal (Must be between 6-12 weeks) |
All requirements MUST be imaged transvaginally. Only transvaginal images will be reviewed. MUST include an embryo/fetus with cardiac activityDocumentation of the gestational sacDocumentation of the yolk sacDocumentation of the embryo/fetus without measurementCRL measurementCardiac motion with M-modeUterusComplete documentation in longitudinal At least three gray scale images to include right lateral, mid without measurement, left lateral
Complete documentation in transverse At least three gray scale images to include lower uterine segment, body without measurement, fundus
OvariesComplete documentation of both ovaries in longitudinal
At least two distinctly different gray scale images of each ovary without measurements or color/spectral Doppler
Complete documentation of both ovaries in transverseAt least two distinctly different gray scale images of each ovary without measurements or color/spectral Doppler
Size-length, height (AP), width
ORLongitudinal gray scale cine clip from medial to lateral throughout both ovariesTransverse gray scale cine clip from superior to inferior throughout both ovariesAt least one static longitudinal gray scale image of each ovary without measurements or color/spectral DopplerAt least one static transverse gray scale image of each ovary without measurements or color/spectral DopplerSize - length, height (AP), width
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2nd Trimester (MUST be between 18 and 26 weeks) |
Fetal presentation/positionAmniotic fluid documentationPlacental locationPlacental relation to the internal cervical osFetal measurementsBiparietal diameterHead circumferenceAbdominal circumferenceFemur length
4 chamber view of heartCardiac motion with M-modeRight ventricular outflow tract (RVOT) - static image OR cine clipLeft ventricular outflow tract (LVOT) - static image OR cine clipCerebral ventriclesCerebellumCisterna magnaNose/lipsStomachKidneysUrinary bladderUmbilical cord insertion into fetal abdomenUmbilical cord vessel numberSpine in longitudinal and transverseCervicalThoracicLumbarSacral
All 4 extremitiesMaternal anatomyCervix with measurementUterusAdnexa
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3rd Trimester (MUST be greater than 26 weeks) |
Fetal presentation/positionAmniotic fluid measurement (AFI or MVP)Placental locationPlacental relation to the internal cervical osFetal measurementsBiparietal diameterHead circumferenceAbdominal circumferenceFemur length
4 chamber view of heartCardiac motion with M-modeStomachKidneysUrinary bladder
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Revision History for this Article |
Date | Section | Description of Revision(s) |
12-12-19 | All | Article created; FAQs incorporated; No criteria changes |
12-17-19 | !st Trimester | Added "including size-length, AP, width" to the complete documentation of both ovaries in longitudinal and transverse |
12-17-19 | 2nd Trimester and 3rd Trimester | Added cardiac motion with M-mode |
1-27-2020 | 1st Trimester | Clarified 1st bullet and included "Must" be between 6-12 weeks. |
6-2-2020 |
| Added complete documentation description |
8-3-2020 |
| Added further description of complete documentation for 1st trimester Endovaginal study |
2-19-2021 | 1st Trimester Endovaginal | Added requirements for submissions after March 1, 2021 |
2-24-2021 | Requirements for submissions after March 1, 2021 | Edited complete documentation of uterus |
1-21-2022 | 1st Trimester, 2nd Trimester and 3rd Trimester | Updated exam requirements |
2-4-2022 | 2nd and 3rd Trimester | Added missing requirements from last update |
5-10-2022 | 1st Trimester Endovaginal
| Moved "Size-length, height (AP), width bullet to align with complete documentation |