VASCULAR MARKER FOR RADIATION THERAPY, PLACEMENT SUPPORT METHOD OF VASCULAR MARKER, RADIATION IRRADIATION CONTROL DEVICE USING VASCULAR MARKER AND RADIATION IRRADIATION CONTROL PROGRAM

摘要

To provide a vascular marker for radiation therapy, the vascular marker that is deformed in a shape of three-dimensional curved shape and placed after being inserted into a vessel in a linear shape, and serves as a mark for positioning radiation irradiation.SOLUTION: Markers 111, 115, 116 of three-dimensionally curved shapes have shapes in which a difference with the physiological and anatomical shapes appearing in vivo can be identified, even when X-ray fluoroscopy is performed from any three-dimensional direction. Also, the three-dimensionally curved shape has a size where the vascular marker is deformed in a target vessel and can be placed, and is the three-dimensionally curved shape and mass reduced in metal artifacts. Also, the three-dimensionally curved shape is the traversable three-dimensionally curved shape comprising a spherical curved shape, S-shape twisted in an upper formation surface and a lower formation surface, eight-character shape twisted in the upper formation surface and the lower formation surface, spring shape with equal diameter or different diameter, and point symmetry shape of any of those shapes.SELECTED DRAWING: Figure 1A