Dust exposed workers in medical checkup for pneumoconiosis
Conditions
Interventions
After obtaining informed consent, ultra-low dose CT (one-to-fifty of conventional dose) in addition to conventional dose CT are performed. The database of both images obtained is used for observer st
Sponsors
Nagasaki University Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1.Dust exposed workers in medical checkup for pneumoconiosis by CT 2.Examinees from 40 years or older to 80 years in obtaining informed consent 3.After receiving a sufficient explanation on participation in this study, Examinees on a through understanding and with the document of voluntary consent
Exclusion criteria
Exclusion criteria: 1.History of surgery in respiratory disease 2.Examinees with severe respiratory diseases except for pneumoconiosis 3.Patients in which principal investigator has determined to be inappropriate as a subject
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diagnostic performance of radiologists using the ultra-low-dose CT image and the normal dose CT images on Pneumoconiosis.(Thenon-inferiority to the normal dose CT images of ultra-low-dose CT images.) | — |
Secondary
| Measure | Time frame |
|---|---|
| Computer analysis of ultra-low-dose CT image and the normal dose CT image. | — |
Countries
Japan
Contacts
Public ContactKazuto Ashizawa
Nagasaki University Hospital Clinical Oncology Center
Outcome results
None listed