Ultrasound vs Chest X-ray for NG Tube Placement in ICU

January 21, 2026 updated by: Guldem Turan, Tepecik Training and Research Hospital

Comparison of the Diagnostic Accuracy of Bedside Gastric Ultrasonography and Chest Radiography for Verification of Nasogastric Feeding Tube Placement in Intensive Care Unit Patients: A Prospective Observational Study

his study evaluates the diagnostic accuracy of bedside gastric ultrasonography for confirmation of nasogastric tube placement in intensive care unit patients, using chest radiography as the reference standard. Sensitivity and specificity of bedside ultrasonography will be calculated to assess its performance in this clinical setting.

Study Overview

Status

Not yet recruiting

Conditions

Study Type

Observational

Enrollment (Estimated)

170

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

The study population consists of adult patients (aged 18 years and older) admitted to the intensive care unit who have a clinical indication for nasogastric tube placement. Eligible patients are enrolled prospectively following written informed consent obtained from the patient or a legally authorized representative.

Description

Inclusion Criteria:

Age ≥ 18 years

Clinical indication for nasogastric tube placement

Written informed consent obtained from the patient or a legally authorized representative

Exclusion Criteria:

  • Refusal to participate in the study

Age < 18 years

Pregnancy

Contraindications to nasogastric tube placement, including:

Facial trauma

Basilar skull fracture

Esophageal obstruction

Recent upper gastrointestinal surgery

Presence of wounds, burns, or surgical dressings in the epigastric region that preclude adequate ultrasonographic evaluation

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Diagnostic accuracy of bedside gastric ultrasonography for confirmation of nasogastric tube placement
Time Frame: Immediately after nasogastric tube placement
Diagnostic accuracy of bedside gastric ultrasonography will be assessed by calculating sensitivity and specificity using chest radiography as the reference standard.
Immediately after nasogastric tube placement

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Agreement between bedside gastric ultrasonography and chest radiography
Time Frame: Immediately after nasogastric tube placement
The level of agreement between bedside gastric ultrasonography and chest radiography findings will be evaluated.
Immediately after nasogastric tube placement
Time to confirmation of nasogastric tube placement
Time Frame: From tube insertion to confirmation
Time required to confirm correct nasogastric tube placement using bedside gastric ultrasonography and chest radiography.
From tube insertion to confirmation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Tepecik Training and Research Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

January 1, 2026

Primary Completion (Estimated)

July 1, 2026

Study Completion (Estimated)

July 1, 2026

Study Registration Dates

First Submitted

January 21, 2026

First Submitted That Met QC Criteria

January 21, 2026

First Posted (Actual)

January 29, 2026

Study Record Updates

Last Update Posted (Actual)

January 29, 2026

Last Update Submitted That Met QC Criteria

January 21, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 2025/11-04

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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