1991 Fiscal Year Final Research Report Summary
Single Exposure Energy Subtraction Chest Radiography
| Project/Area Number |
02454284
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Radiation science
|
|---|
| Research Institution | Kanazawa University |
|---|
Principal Investigator |
TAKASHIMA Tsutomu Department of Radiology, Kanazawa University Professor, 医学部, 教授 (70019545)
|
|---|
| Project Period (FY) |
1990 – 1991
|
| Keywords | dual energy subtraction / plain chest radiography / soft tissue image / bone image / lung cancer screening / calcifed nodule / computed radiography / single exposure |
|---|
| Research Abstract |
Postprocessing of image data is one of the unique capabilities of digital radiography that may improve diagnostic performance. Computed radiography (CR) using imaging plates is performed with a dedicated digital radiographic unit. Dual-energy subtraction can also be performed with the system. we studied the impact of digital chest imaging (CR) on the detection of pulmonary nodular shadows in a comparison with conventional chest radiograms.
Dual-energy subtraction improved the detection of nodules in 21% cases.
Subtraction images markedly improved the detection of nodules hidden under the ribs and calcifications the dual energy subtraction technique appears promising for lung cancer screening.
|
