Diagnostic Ultrasound

What the purpose of ultrasound

• Acoustic energy in the form of waves having a frequency above the human hearing range.

• X-ray image made using a form of tomography in which a computer controls the motion of the X-ray source and detectors, processes the data, and produces the image

• Generates an intense beam of coherent monochromatic light by stimulated emission of photons from excited atoms or molecules

• Medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body

Which one type radiation of Ultrasound

• Ionizing

• Non-Ionizing

How does ultrasound work to generate images from the body tissues?

• Use low frequency sound waves transmitted into and reflected back

• Use high frequency sound waves transmitted into and reflected back

Determine the type of transducer

• Annular array probes (Transviginal)

• Sector probes

• Convex (curvilinear) probes

• Linear probes

Determine the type of transducer

• Annular array probes (Transviginal)

• Sector probes

• Convex (curvilinear) probes

• Linear probes

Identify the ultrasound mode for this image

• A-mode

• B-mode

• M-mode

• Doppler Mode

What is B-mode?

• Blood flowing towards the transducer will shift the frequency of the echo signals to be slightly higher than that of a non-moving reflector.

• Two-dimensional image that portrays moving reflectors in color

• Brightness of the dots represents the strength of the returning echoes

• Echo display frequently displays motion along a single plane

Refer image, Identify type of the phantom test

• Horizontal Distance

• Vertical Distance

• Axis Resolution

• Dead Zone

This Image is one of the parts of Ultrasound, what name it is?

• Keyboard

• Trackball

• Cursor Enable Cursor

• Top Menu Control

what is the frequency in a year for ultrasound machine to be maintained

• Every 3 months

• Every 4 months

• Every 6 months

• Annually