Acute low back pain, Indications for Imaging.

Trauma An initial plain film would be appropriate if there is a history of recent significant trauma, or even a history of minor trauma in an elderly patient. Red Flags > MRI Immediate MRI is appropriate in the presence of red flags such as bladder...

Radiation exposure from a typical abdominal CT

In an adult, the radiation exposure from a typical abdominal CT examination is approximately the same as 400 posteroanterior chest radiographs. Radiation Dose Comparisons Typical Effective Dose Values Associated With Various Medical Imaging Examinations, Background...