2016 Fiscal Year Final Research Report
CT temporal subtraction method for diagnosis in chest imaging
| Project/Area Number |
26461842
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Radiation science
|
|---|
| Research Institution | University of Occupational and Environmental Health, Japan |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Keywords | コンピュータ支援診断 / 画像診断 / CT / 経時差分画像 / 肺結節 / 肺癌 |
|---|
| Outline of Final Research Achievements |
Temporal subtraction (TS) technique is one of the coputer-aided-diagnosis techniques in which a previous image is subtracted from a current image so that interval changes are enhanced. We have developed a TS method in successive CTs using a new local matching technique to determine local shift vectors based on a vector convergent index from generalized gradient vector flow algorithms in order to significantly reduce misregistration artifacts. The novel CT temporal subtraction method can assist the radiologists’ interpretation for early lung cancer showing ground-glass opacity and small lung nodule detection without considerably extending the reading time.
|
| Free Research Field |
放射線科学
|
