Unique ID issued by UMIN | UMIN000039718 |
---|---|
Receipt number | R000045085 |
Scientific Title | Development and evaluation of minimally invasive and Dynamic digital radiography |
Date of disclosure of the study information | 2020/04/01 |
Last modified on | 2021/09/05 19:14:35 |
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
Development and evaluation of minimally invasive and Dynamic digital radiography
Japan |
patients with respiratory diseases
Pneumology |
Others
NO
To evaluate the usefulness of dynamic digital radiography in evaluating respiratory function.
Safety,Efficacy
Exploratory
Explanatory
Not applicable
Lung area respiration rate and lung volume fraction obtained from dynamic digital radiography
Lung area respiration change rate and health-related QOL obtained from dynamic digital radiography, walking distance for 6 minutes
Interventional
Single arm
Non-randomized
Open -no one is blinded
Uncontrolled
1
Diagnosis
Device,equipment |
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 (PaxScan, 4343CB, Varex Imaging Corporation, Salt Lake City, UT, USA), and X-ray generator/tube capable of pulsed irradiation (DHF-155H II/UH-6QC-07E, Hitachi, Ltd.). To be a reliable diagnostic tool, the system must have a high homogeneity and uniformity in X-ray pulses. Except for the breathing pattern, imaging is performed in the same way as a conventional chest examination (i.e., the standing position and posteroanterior [PA] direction). For an accurate evaluation of pulmonary function, it is crucial to include one respiratory cycle within a limited amount of time with good reproducibility. Therefore, it is recommended to use an automatic voice system and pre-train patients. The total patient dose is adjustable by changes in the imaging time, imaging rate, and source-to-image distance (SID), and can be less than the dose limit for two projections (PA + LA) recommended by the International Atomic Energy Agency (IAEA). In this study the exposures were obtained using the following parameters: 100 kV; 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.
Not applicable |
Not applicable |
Male and Female
patients with respiratory disease
Patients who cannot perform respiratory function tests.
300
1st name | Kazuo |
Middle name | |
Last name | Kasahara |
Kanazawa university hospital
respiratory medicine
9208641
13-1 Takaramachi Kanazawa, Ishikawa
+81762652757
k-kasa@staff.kanazawa-u.ac.jp
1st name | Noriyuki |
Middle name | |
Last name | Ohkura |
Kanazawa university hospital
respiratory medicine
9208641
13-1 Takaramachi Kanazawa, Ishikawa
+81762652757
n-ohkura@med.kanazawa-u.ac.jp
Kanazawa university hospital
Konica Minolta, Inc. (Tokyo, Japan)
Profit organization
The Medical Ethics Committee of Kanazawa University
13-1 Takaramachi Kanazawa, Ishikawa
076-265-2110
rinri@adm.kanazawa-u.ac.jp
NO
2020 | Year | 04 | Month | 01 | Day |
Partially published
Completed
2015 | Year | 05 | Month | 01 | Day |
2015 | Year | 06 | Month | 10 | Day |
2015 | Year | 12 | Month | 01 | Day |
2021 | Year | 03 | Month | 31 | Day |
2021 | Year | 03 | Month | 31 | Day |
2021 | Year | 08 | Month | 31 | Day |
2021 | Year | 08 | Month | 31 | Day |
2020 | Year | 03 | Month | 05 | Day |
2021 | Year | 09 | Month | 05 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000045085
Research Plan | |
---|---|
Registered date | File name |
Research case data specifications | |
---|---|
Registered date | File name |
Research case data | |
---|---|
Registered date | File name |