Introduction to ultrasound

Question 1

CPU central processing unit

Answer 1

Sends electrical current to the transducer to emit sound waves.
Receives the electrical pulse created from returning echoes.
Does all calculation involved in processing data.
Once raw data I processed image is on monitor.
Store processed data

Question 2

Monitor

Answer 2

Displays processed data from cpu.
Traditional cathode ray tube (conventional tv)
Computer monitor
Flat panel screen
Two controls : brightness and contrast

Question 3

Transducer

Answer 3

Small handheld device.
Sends and receives sound waves and records the echoing waves.
When pressed against the skin it sends small pulses of inaudible high frequency sound waves unto the body and listens for returning echoes

Question 4

Connector

Answer 4

Connect the transducerto the ultrasound machine

Question 5

Ultrasound panel

Answer 5

Add notes and take measurements

Question 6

Printer

Answer 6

Thermal printer capture a hard copy of image on display

Question 7

Disk storage

Answer 7

Processed data is stored.
Hard disk, compact disks, digital video disks, flash drives

Question 8

Steps in machine set up

Answer 8

1. Check probe connector
2. Switch on machine
3. Enter patients details
4. Turn down acoustic power
5. Select preset
6. Select frequency
7. Select display mode