Tohoku Univ. Technology: Deformable image registration adjustment support device, support method and program: T19-009
Reduce the effort of the coordinator
In recent years, deformable image registration (DIR) has been used to create radiotherapy treatment plans in medical practice. The accuracy of DIR is evaluated by the small difference between the image after deformation by DIR and the image obtained by imaging. To evaluate this, the common point (landmark point) between two images is found and compared. However, since the deformation by DIR is a non-rigid deformation, the relative positional relationship of each position such as the distance between the vertices of the image to be mapped to the image and the angle of the vertices is not necessarily preserved. Therefore, it is necessary for the coordinator to make a judgment based on his/her experience, and there is a problem that the burden on the coordinator is large. To solve this problem, the inventors developed a phantom in which a rod simulating a tumor and an organ can be inserted, and an algorithm for verifying the accuracy of DIR using this phantom, and completed the present invention. In addition to being able to reproduce various shape changes easily by replacing the rod, the phantom of the present invention can automatically set thousands of landmark points by applying position information at the time of medical image acquisition, and can automate all DIR accuracy evaluations.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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