Lecture 1

Question 1

Diagnostic purposes of ultrasound

Answer 1

Opthamology, vascular, abdominal, cardiology, obstetrics, uro-genital, rectal.

Question 2

Therapeutic uses of ultrasound

Answer 2

High Intensity Focussed Ultrasound, lithotripsy, low power bone therapies

Question 3

Lithotripsy

Answer 3

Kidney and gallstones

Question 4

Low power bone therapies

Answer 4

physiotherapy, bone healing, drug delivery, sonothrombolysis, cataract surgery

Question 5

High intensity focussed ultrasound

Answer 5

Uterine fibroids, pain relief, essential tremor, prostate cancer

Question 6

Process of ultrasound

Answer 6

Ultrasound probe is held against the skin with coupling gel - A beam of ultrasound pulses at 3-15MHz
Ultrasound propagates, and scatters from acoustic heterogeneities,
The reflected waves are detected at the surface
The signal is displayed