First TrimesterThis is a featured page

Ultrasound scanning guidelines

First Trimester

transabdominal or transvaginal scanning maybe used to investigate an early pregnancy

Assess:
  • Uterus myometrium / cervix
  • Ovaries and adnexal regions
  • Pouch of Douglas
  • Gestational sac location / size / shape
  • Identify embryo / fetal pole / number
  • Yolk sac / amnion
  • Fetal cardiac activity
  • Fetal morphology
    • Cranium
    • Heart / stomach
    • Bladder
    • Cord insertion
    • presence of limbs, hands and feet
Documentation for transabdominal scanning:
  • Long view of the uterus right / midline / Left
  • Trans view of uterus inferior / mid / fundus
  • Ovarian measurements long / transverse
  • Gestational sac measurements long and transverse for Mean Sac Diameter (MSD)
  • Crown Rump Length (CRL) measurements of fetal pole / fetus
  • Document fetal heart movement if present - M-mode and dynamic clipstore
  • Fetal Morphology views (>11 weeks)
    • Coronal head and body
    • Trans cord insertion
    • Stomach
    • Bladder
Documentation for transvaginal scanning:
  • Long views of uterus right / midline / left
  • Long view of cervix / Pouch of Douglas
  • Coronal view cervix
  • Coronal view uterus inferior / mid / fundus
  • Ovarian measurements , long and coronal
  • Gestational sac measurements long / transverse for MSD
  • CRL measurements of fetal pole / fetus
  • Document fetal heart movement if present - M-mode and dynamic clipstore
  • Fetal Morphology views (>11 weeks)
    • Coronal head and body
    • Trans cord insertion
    • Stomach
    • Bladder

....Go back to ultrasound protocols homepage


AndyC
AndyC
Latest page update: made by AndyC , Feb 25 2009, 6:07 AM EST (about this update About This Update AndyC Edited by AndyC

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