Medical Physics and Ultrasound 0.0 / 5 ? PhysicsMedical Physics and UltrasoundGCSEEdexcel Created by: Ruthie BentleyCreated on: 20-03-15 18:19 What type of radiation is used in medicine? Ionising and non-ionising 1 of 8 What type of radiation is used in CAT scans? X-rays 2 of 8 What do CAT scans use? Intense beams of X-rays that are strongly ionising 3 of 8 What can CAT scans be used to image? Soft and hard tissue 4 of 8 What is ultrasound? Sound waves with frequencies above 20kHz 5 of 8 What are the medical uses of ultrasound? Breaking down kidney stones, pre-natal scanning of a foetus and measuring the speed of blood flow. 6 of 8 How are kidney stones broken down? An ultrasound beam concentrates high energy waves at the kidney stone and turns it into sand like particles. 7 of 8 How is a foetus scanned? Ultrasound waves are reflected off the tissue boundaries. 8 of 8
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