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Development of dynamic X-ray inspection technology

Development and evaluation of minimally invasive and dynamic respiratory function testing technology

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs062210022
Enrollment
150
Registered
2021-07-08
Start date
2022-07-08
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

Chronic obstructive pulmonary disease

Interventions

Sponsors

Megumi Hamaguchi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: COPD patients who are admitted or attended the Shimane University Hospital and healthy volunteers(patients without respiratory dysfunction who are admitted or attended the Shimane University Hospital, medical examination participants, Hospital staff medical examination perticipants and students) For healthy volunteers, those who meet the following 1-3. 1.Persons aged 20 years and over at the time of consent. 2.Persons who are possible labored breathing, resting breathing and breath holding in the standing or lying position. 3.Persons who have received sufficient explanation before participating in this study, and have obtained written consent by their own free will with sufficient understanding. For COPD patients, those who meet the following 1-4 1.Patients aged 20 years and over at the time of consent. 2.Patients who are possible labored breathing, resting breathing and breath holding in the standing or lying position. 3.Patients who have received sufficient explanation before participating in this study, and have obtained written consent by their own free will with sufficient understanding. 4. Patients who was diagnosis COPD by pulmonorogist.

Exclusion criteria

Exclusion criteria: 1.Persons who do not understand the breathing instructions at the time of examination(ex;dementia) 2.Persons with a history of thoracic surgery beyond lobectomy and radiation therapy to the chest. 3.People who are currently admitting or attending the department of respiratory medicine because of respiratory dysfunction other than COPD. 4.Women who are currently pregnant, may be pregnant or breastfeeding. 5.Persons with an implantable pacemaker or implantable defibrillator. 6.Other persons who are judged to be inappropriate by the investigator and the investigator.

Design outcomes

Primary

MeasureTime frame
1.Correlation between dynamic image parameters calculated from dynamic X-ray images in healthy cases and respiratory function test results obtained by spirometry. 2.AUC by ROC analysis of each stage of COPD and non-COPD.

Secondary

MeasureTime frame
Correlation of dynamic x-ray parameters with mMRC shortness of breath scale and CAT

Contacts

Public ContactMegumi Hamaguchi

Shimane University Hospital

hs1219@med.shimane-u.ac.jp+81-853-20-2580

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026