Development and evaluation of minimally invasive and Dynamic digital radiography

Development and evaluation of minimally invasive and Dynamic digital radiography - Development and evaluation of minimally invasive and Dynamic digital radiography

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000039718

Enrollment

300

Registered

2020-04-01

Start date

2015-12-01

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

patients with respiratory diseases

Interventions

Sequential chest X-ray images were obtained during respiration with use of a dynamic FPD imaging system (Test Model, Konica Minolta, Inc., Tokyo, Japan), consisting of an indirect-conversion FPD (PaxS

50 mA

2.5 ms

15 frames per second

and 2.0 m from the SID. The entrance surface dose to the detector is approximately 0.21 mSv in 14 s.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: patients with respiratory disease

Exclusion criteria

Exclusion criteria: Patients who cannot perform respiratory function tests.

Design outcomes

Primary

Measure	Time frame
Lung area respiration rate and lung volume fraction obtained from dynamic digital radiography	—

Secondary

Measure	Time frame
Lung area respiration change rate and health-related QOL obtained from dynamic digital radiography, walking distance for 6 minutes	—

Countries

Japan

Contacts

Public ContactNoriyuki Ohkura

Kanazawa university hospital respiratory medicine

n-ohkura@med.kanazawa-u.ac.jp+81762652757

Outcome results

None listed

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