放射疗法(也可以说是电离辐射疗法)和外科手术是目前治疗早期癌症病变的两种主要办法。放射疗法,不论是单独使用,还是结合目前掌握的很多医疗手段一块应用,都是一种在癌症扩散的情况下,医治的一种权宜之计的好办法。这种办法与 X 射线和镭同时问世,近些年来,变化颇大。经过专门训练的放射学家们,一些人从事 X 射线诊断;另一些人则从事治疗。工业界研制出了一些很适合医疗需要的 Radiation therapy (also referred to as ionizing radiation therapy) and surgery are the two main approaches currently used to treat early stage cancer. Radiation therapy, whether used alone or in combination with many medical methods currently in use, is a good way to treat cancer in the case of cancer spread. This approach was launched at the same time as X-ray and radium. In recent years, it has undergone considerable changes. Specially trained radiologists, some are engaged in X-ray diagnosis; others are engaged in treatment. Industry has developed some very suitable for medical needs