Observation of the Esophagus in Young Adult Using a Portable Ultrasound device

Feasibility and Safety of Observing the Cervical Esophagus Using a Portable Ultrasound Imaging Device in Young Healthy Participants: A Prospective Pilot Study - Portable Ultrasound for Research of the Esophagus

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000058645

Enrollment

Registered

2025-08-01

Start date

2025-08-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Healthy participants

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Healthy individuals aged 20 to 29 years 2. Individuals with no history of swallowing disorders or diseases of the neck, pharynx, or esophagus 3. Individuals with no significant physical or mental impairments 4. Individuals who have provided informed consent to participate in the study

Exclusion criteria

Exclusion criteria: 1. Individuals who are pregnant 2. Individuals with implanted electronic medical devices such as pacemakers or glucose monitoring systems 3. Individuals with a history of surgical procedures above the chest 4. Individuals with a history of internal medical diseases from the head to the stomach

Design outcomes

Primary

Measure	Time frame
The proportion of study participants in whom the cervical esophagus could be identified by ultrasound - using any method - while facing forward, regardless of probe position or angle.	—

Secondary

Measure	Time frame
1. The proportion of study participants in whom the cervical esophagus could be identified by ultrasound-using any method-while facing to the right, regardless of probe position or angle. 2. The proportion of participants in whom the cervical esophagus could be identified by ultrasound-using any method and regardless of scanning site or angle-according to age, sex, height, weight, BMI (Body Mass Index), neck circumference, neck length, and internal and external diameters of the cervical esophagus. 3. The proportion of participants in whom the cervical esophagus could be identified by ultrasound for each probe position and angle. 4. Association between the probe position and angle and the clarity (or quality) of cervical esophageal ultrasound images 5. Reasons for failure to identify the cervical esophagus by ultrasound. 6. Adverse events	—

Measure

Time frame

1. The proportion of study participants in whom the cervical esophagus could be identified by ultrasound-using any method-while facing to the right, regardless of probe position or angle. 2. The proportion of participants in whom the cervical esophagus could be identified by ultrasound-using any method and regardless of scanning site or angle-according to age, sex, height, weight, BMI (Body Mass Index), neck circumference, neck length, and internal and external diameters of the cervical esophagus. 3. The proportion of participants in whom the cervical esophagus could be identified by ultrasound for each probe position and angle. 4. Association between the probe position and angle and the clarity (or quality) of cervical esophageal ultrasound images 5. Reasons for failure to identify the cervical esophagus by ultrasound. 6. Adverse events

—

Countries

Japan

Contacts

Public ContactMikako Notsu

University of Shizuoka School of Nursing

notsu.m@u-shizuoka-ken.ac.jp054-202-2946

Outcome results