The Darling River, 1,160 miles (1,879 km) in length, flows southwest from the edges of the Great Dividing Range into the Murray River. The Murray rises in the Australian Alps and flows 1,200 miles (1,930 km) to the Spencer Gulf, directly west of Adelaide.
In lung cancer screening, individuals who have a high risk of developing lung cancer but no signs or symptoms of the disease undergo low-dose computed tomography (LDCT) scanning of the chest.
But in reality, the amount of radiation from a single imaging test really is not that much. In general, the benefits of imaging tests far outweigh the radiation risks. The risk of dying of cancer for the average American is one in five. The additional risk of getting cancer from one CT scan is estimated to be less than one in 2,000. In my opinion, that risk is tiny for a test that could save someoneâs life.