| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
Our method is based on the optical flow with extraction and tracking of feature points on two sectional ultrasound images. It was found that the error of our proposed method was 1.54±0.9 mm. For integrating the ultrasound coordinate with the room coordinate, it was found that it is difficult to achieve an accuracy < 1mm by existing inexpensive external camera systems. For clinical evaluation using metal marker near the tumor, CTV (clinical target volume) V95 (the percentage receiving ≧95% of the prescription dose) using the metal marker was 99.8±0.4 %, and V95 using bony structure was 94.0±7.5 %. It was found that using metal marker near the tumor improved the target dose largely.
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