Approaches to the 4D-CBCT using 2 axis fluoroscopic X-ray

2014 Fiscal Year Final Research Report

• Project/Area Number: 24591829
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Radiation science
• Research Institution: Hokkaido University
• Principal Investigator: SHIMIZU Shinichi 北海道大学, 医学(系)研究科(研究院), 准教授 (50463724)
• Co-Investigator(Kenkyū-buntansha): MIYAMOTO Naoki 北海道大学, 北海道大学病院, 助教 (00552879) ; TAKAO Seishin 北海道大学, 北海道大学病院, 助教 (10614216)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 放射線治療 / 粒子線治療 / 陽子線治療 / 動体追跡装置 / CBCT / 4次元 / 4D-CBCT

Outline of Final Research Achievements

Construction of a radiation therapy system which can consider respiratory movement of tumor and organs. Location variation and irradiation time are also considered using the 2 axis of X-ray fluoroscopic motion tracking device that are installed at the proton therapy within the gantry. To enable image of the cone-beam CT to get the original source image of 4-dimensional CBCT (4D-CBCT) with the use of the motion tracking device and try to develop the principle and performs imaging test by phantom. Morphological changes of the patients on the treatment couch by imaging moving tumors and organs by 4D-CBCT, the appropriateness of the treatment planning time and compare present status of tumor irradiated and the condition of the normal tissues are to be verified.

Free Research Field

放射線治療