Uterine biophysical profile

Dr Tim Luijkx and Dr Praveen Jha et al.

Uterine biophysical profile refers to assessment of uterus to produce a successful conception and implantation environment. 

Uterine scoring system for reproduction (USS)

The uterine scoring system for reproduction comprises the following parameters, taken in mid-cycle:

1. endometrial thickness

  • < 7 mm: 0
  • 7-9 mm: 2
  • 10-14 mm: 3
  • > 14 mm: 1

2. endometrial layering

  • no layering: 0
  • hazy trilaminar: 1
  • distinct trilaminar: 2

3. myometrial contractions (need close look for wave-like endometrial motion). advised to save cine image for two minutes at low frame rate, and check back in slow frames)

  • < 3 contractions in 2 minutes: 0
  • > 3 contractions in 2 minutes: 1

4. myometrial echogenicity

  • coarse/heterogeneous: 1
  • homogeneous: 2

5. uterine artery Doppler

  • PI > 3: 0
  • PI 2.5-2.99: 1
  • PI 2.2-2.49: 2
  • PI < 2.19: 3

6. endometrial blood flow in zone 3 (i.e. hypoechoic inner layer of endometrium)

  • absent: 0
  • sparse: 2
  • abundant: 5

7. myometrial blood flow internal to arcuate vessels (see on grey-scale)

  • absent: 0
  • present: 2
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Article information

rID: 37184
System: Gynaecology
Tag: refs
Synonyms or Alternate Spellings:

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