Clinical haematology · UKMLA & AKT
Ultrasound imaging
A free high-yield preview for the UKMLA Applied Knowledge Test, covering how to recognise this condition. The full SA Note notes add investigations, management and complications, with practice questions on this topic.
Key high-yield points
- Piezoelectric crystals convert electrical energy into high-frequency sound waves (2-18 MHz); returning echoes are used to construct a greyscale image
- Higher frequency (7-18 MHz) - better resolution, less penetration; for superficial structures (thyroid, testes, musculoskeletal)
- Lower frequency (2-5 MHz) - less resolution, greater penetration; for abdominal and pelvic imaging
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