| 摘要 |
In prostate brachytherapy or the like, a preplan (101) is formed for the prostate in its condition at the time, and needles pre-loaded with radioactive seeds are ordered (103). In the operating room, it is determined whether the prostate has changed in size, shape or position (105). If so, the preplan (101) is deformed to conform to the prostate in its new condition. The needles are inserted into the prostate through a template, which can have a hole spacing in each dimension that is smaller than that that of conventional templates or can have holes arranged in a non-rectilinear pattern. Alternatively, a virtual template, having a single movable needle passage, can be used. The therapeutic agents can be provided in a biodegradable carrier for timed release. |
