,對體表皮膚的影響比較顯著。前列腺在身體正中,距離體表皮膚比較遠,所以影響小
回答: 放療是360度旋轉射線投影,對局部的皮膚影響取決於聚焦點到體表皮膚的距離。鼻咽癌距離臉部鼻部皮膚近,所以投影射線的單位麵積能量高
由 ClearCase
於 2025-05-08 16:36:00
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