Patients undergoing lung cancer screening and those needing further tests after initial screening
Conditions
Interventions
None listed
Sponsors
Kenichi Sugihara
VUNO Inc.
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1) CT images captured during the period from Jan 2020 to Sep 2024 at each Image Collection Medical Institution 2) CT images captured by the following vendor's CT devices GE, Philips, Siemens and Canon (Toshiba) 3) CT images of patients aged 18 years or older at the time of CT imaging 4) CT images with 512 x 512 or 1024 x 1024 pixel sizes 5) CT images with 0.6 to 5 mm slice thickness 6) CT images taken at low or standard doses 7) CT images in which the image reconstruction function (kernel) is a "Pulmonary Field Condition" 8) Non-contrast CT images
Exclusion criteria
Exclusion criteria: 1) CT images that is missing on imaging in part of both lungs 2) CT images judged by the Image Collection Physicians to have significant artifacts There are three main types of artifacts-motion artifact, metal artifact, and streak artifact etc.- and those that meet the following criteria are considered "significant artifacts". - Pulmonary nodules are not clearly depicted. - There is a shadow that interferes with interpretation. 3) CT images that the case is considered difficult to create GS due to diffuse shadows over a wide area of the lung field, infiltrative shadows, lesions over a wide area of the pleura, hemorrhage within the lung field, widespread pleural effusion, pneumothorax, innumerable pulmonary nodules, presence of surgical scars, etc. 4) CT images with inadequate DICOM header information 5) In case that IC from patients is required to obtain, CT images of patients who were unable to obtain informed consent or denied the use of images in this study when obtaining written or oral informed consent 6) Other cases that the Image Collection Physicians deems inappropriate
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Figure of Merit (FOM) of JAFROC improvement in performance of the readers when interpreting images "With CAD (w/ CAD)" compared to performance of the readers when interpreting images "Without CAD (w/o CAD)" in detecting pulmonary nodules, in reader study | — |
Contacts
Public ContactHirano Akina
M3, Inc.
Outcome results
None listed