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DYNAMIC TABLE/SHIELD APPARATUS AND METHOD OF USING SAME IN MOVING-TABLE TOTAL BODY IRRADIATION TREATMENT
DYNAMIC TABLE/SHIELD APPARATUS AND METHOD OF USING SAME IN MOVING-TABLE TOTAL BODY IRRADIATION TREATMENT
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机译：动态工作台/护罩装置以及在移动工作台总身体辐照治疗中使用相同的方法
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摘要
A dynamic table/shield apparatus (230) contains a movable treatment table (204) and at least one shielding block (202) which is movable relative to the table (204). The apparatus (230) effects total body irradiation treatment of a body disposed on the table (204) while completely shielding, throughout the treatment time, a midplane of a predetermined body part from a radiation beam (212) emitted from a radiation source (208) during the treatment. During the treatment the table (204) and body are moved in a first direction at a first velocity V1 through a radiation field, and the shielding block (202) is moved relative to the table (204) at a second velocity V2 in a second direction opposite of the first direction. The second velocity is equal to (V1)(b/a), wherein 'V1' is the first velocity, 'b' is the perpendicular distance between the shielding block (202) and the midplane of the body part, and 'a' is the perpendicular distance between the midplane of the body part and the radiation source (208). The apparatus (230) preferably further contains a movable verification film component (214) for confirming the accuracy of the shielding of the predetermined body part.
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