Tailored exposure parameters for the individual

• X-ray intensity halved approx. every 5 cm of patient

  • Could double/halve mAs for patients 5 cm larger or smaller than standard

• mA adjustment usually more conservative than this

  • Image quality requirements may be different for different sized patients; generally want lower noise for small patients
  • Suggested to double/halve mAs for patients 10 cm larger or smaller than standard*