| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
We developed the quality assurance method for respiratory-gated radiotherapy using new real-time tumor-tracking radiotherapy (RTRT) system. The RTRT system recognize the positions of the fiducial marker implanted near the liver and lung tumors in real time using two fluoroscopic images. We developed a software that can analyze the log file and made it possible to quantify respiratory motion of tumor. We also developed a software to verify accuracy during treatment using a log file and cine electronic portal image device and proved that treatment accuracy can be performed with an accuracy of ± 3 mm. In addition, the imaging dose calculation system during real-time tumor monitoring was constructed, making it possible to quantify and manage the imaging doses for each patient.
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