| Project/Area Number |
25461803
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Radiation science
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| Research Institution | Niigata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
OHKUBO Masaki 新潟大学, 医歯学系, 教授 (10203738)
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| Research Collaborator |
MATSUMOTO Toru
MURAO Kohei
MARASINGHE Janaka C
KOBAYASHI Hajime
YOSHIDA Akifumi
GOUDO Makoto
NARITA Akihiro
SUGAWARA Hideyoshi
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | CAD / Quality Assurance / Point Spread Function / CT(Computed Tomography) / Virtual nodule / Lung cancer CT screening / 3D-PSF / Low dose CT screening / point spread function / quality assurance of CAD / virtual nodule / lung cancer CT screening / Low Dose CT Screening / Lung Cancer CT Screening / Quality Assurance of CAD / ３Ｄ－PSF / Virtual Nodule / ROC / CT screening / PSF / CAD performance / lung cancer |
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| Outline of Final Research Achievements |
AAPM-CADSC have published the CAD- Quality Assurance (QA) guideline in Medical Physics recently. We also believe the study of CAD-QA is essential to establish the high quality lung cancer CT screening. The purpose of this study is to develop a method of QA of lung cancer CT screening CAD systems. The research strategy is aimed to cover the image quality characteristic problem caused by a variety of CT image quality due to the difference of the CT manufactures, image acquisition and reconstruction parameters. PSF and SSP were measured to know the 3D-PSF. Using 3D-PSF the virtual nodules were generated. The following 4 issues were discussed in applying the virtual nodule for CAD-QA, (1) Verification of PSF-based virtual nodule method using a CT screening database, (2) virtual nodule application to CAD study as a performance evaluation method, (3) study for the sophistication of the Virtual Nodule,(4) robustness evaluation of CAD performance of algorithm differences.
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