<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.mbali na jukumu muhimu lililochezwa na radiolojia katika uchunguzi, radiotherapy yenyewe imeendelea kwa kiasi kikubwa katika miongo miwili iliyopita, na teknolojia mpya na mbinu zikiruhusu matibabu sahihi zaidi, yenye ufanisi, na yenye sumu kali, na hivyo kuruhusu regimens fupi na zenye urafiki zaidi.  <response>: in addition to the critical role played by radiology in screening, radiotherapy itself has advanced substantially during the past two decades, with new technologies and techniques allowing ever more accurate, effective, and less toxic treatments, thus allowing shorter and more patient-friendly regimens. 