Skip to content

Reproducibility of the Measurement of the Right Portal Vein Diameter

Intra and Interoperator Reproducibility of the Measurement of the Right Portal Vein Diameter at the Third Trimester Scan

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04617964
Acronym
PORTALGROWTH1
Enrollment
69
Registered
2020-11-05
Start date
2021-03-08
Completion date
2022-07-01
Last updated
2022-10-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intrauterine Growth Retardation (IUGR)

Keywords

small-for-gestational-age, right portal vein, third-trimester ultrasound, intra and inter-operator reproducibility

Brief summary

Although routine ultrasound is offered during the third trimester of pregnancy, less than a quarter of newborns with intrauterine growth retardation (IUGR) are suspected antenatally. The measurement of the right portal vein (RPV) diameter on the transverse abdominal view at the 32 weeks' scan may be a new a tool for detecting small-for-gestational-age (SGA) at birth. The irregular and collapsed aspect of the right portal vein (RPV) on the third trimester ultrasound could be used for identifying hypoxemic and growth-restricted fetuses. However, to our knowledge, the only interoperator reproducibility study of this measurement was performed using the same stored images or datasets without performing a new examination. The main objective of this study is to assess the intra and interoperator reproducibility of the measurement of the right portal vein diameter at the routine third trimester ultrasound. The secondary objective is to quantify the interoperator reproducibility of the assessment of the aspect, normal or collapsed, of the right portal vein, using an evaluation grid. Two referees will perform four successive measurements of the diameter of the right portal vein (RPV) during the same ultrasound examination at the third trimester. Each operator will qualify the appearance of the right portal vein as normal or collapsed using an evaluation grid, and will independently performe a series of two measurements using the same method.

Interventions

OTHERUltrasound

Assessment the intra and interoperator reproducibility of the measurement of the right portal vein diameter at the routine third trimester ultrasound

Sponsors

Poitiers University Hospital
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

* Women carrying a pregnancy from 30 weeks to 33 weeks either normal or with IUGR, * Patient without guardianship or curatorship or subordination, * Patient benefiting from a Social Security scheme

Exclusion criteria

* Presence of a fetal malformation, * Multiple pregnancy, * Premature rupture of membranes, * History of bariatric surgery, * Body mass index (BMI)\> 30 kg / m2, * Patient benefiting from enhanced protection, namely: minors, persons deprived of their liberty by a judicial or administrative decision, persons staying in a health or social establishment, adults under legal protection.

Design outcomes

Primary

MeasureTime frameDescription
Measurement of the right portal vein diameterThrough study completion, an average of 1 yearIntra and interoperator reproducibility of the measurement of the right portal vein diameter at the routine third trimester ultrasound

Secondary

MeasureTime frameDescription
Aspect of the right portal vein diameterThrough study completion, an average of 1 yearInteroperator reproducibility of the assessment of the aspect, normal or collapsed, of the right portal vein, using an evaluation grid

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026