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Standing Position Ultrasonography: Imaging Efficacy in Detecting Liver Diaphragmatic Dome Blind Area Lesions

NCT07579533 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 95

Last updated 2026-05-12

No results posted yet for this study

Summary

Objective: To compare the detection efficacy of standing, supine, and left lateral decubitus ultrasonographic scanning for space-occupying lesions ≤3cm in the liver dome "blind area" and assess the feasibility of standing position as a routine scanning posture, providing a theoretical basis for optimizing liver ultrasound protocols.

Methods: Prospectively enrolled patients (CT/MRI-confirmed liver dome lesions) admitted to our Hepatobiliary-Pancreatic Department (Feb 2024-Feb 2025). Three sonographers, blinded to other positions' results, performed scans in standing, supine, and left lateral positions. Fleiss' kappa assessed inter-sonographer agreement. An image quality scoring system (0=not visible; 1=partially visible; 2=fully visible) was used by two blinded radiologists. Baseline data (sex, age, BMI), lesion location, size, type, and liver parenchymal status (normal, fatty liver, liver damage \[diffuse disease/cirrhosis\]) were recorded. Wilcoxon test compared display scores. Subgroup analyses evaluated confounding factors. A Generalized Estimating Equations (GEE) model controlled repeated-measures bias, reporting ORs.

Conditions

  • Liver Tumours
  • Ultrasound
  • Position

Sponsors & Collaborators

  • The First Hospital of Jilin University

    lead OTHER

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-02-01
Primary Completion
2025-02-01
Completion
2025-07-01

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07579533 on ClinicalTrials.gov