RADIATION TREATMENT PLANNING DEVICE

摘要

PURPOSE:To make line cones easily visible and to enable an operator to easily make a high-accuracy plan by displaying the images of the section determined by a radiation source and the slice position assigned on scanno-side images together with the line cones. CONSTITUTION:The scan is energized by command information from an input device 48 and is thus instructed, by which the scanno-top image and plural sheets of the axial images by an X-ray CT are obtd. The scanno-top image is then displayed on a display 47 and a target shape is determined. An irradiation field and isocenter are assigned for this target shape. The transmission side images of an examinee P are thereafter reconstituted by using plural sheets of the axial images. The transmission side images are displayed by superposing the lines which are the measure for setting the slice position. MPR conversion is executed to display the MPR image and the line cones superposed thereon according to the assigned position when the slice position on a screen is assigned from the input device 48.