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.
The exam for CT lung cancer screening is a low-dose CT exam, with a radiation dose of approximately 1.5 mSv (millisieverts), equivalent to approximately half of the naturally occurring background radiation that a person receives for one year at sea level. The low-dose CT exam does not require intravenous contrast.