Shared Flashcard Set

Details

Chapter 13
Real-Time Imaging
8
Physics
Undergraduate 3
10/09/2018

Additional Physics Flashcards

 


 

Cards

Term
Frame Rate
Definition

Number of frames per second

 

Determined by sound speed in the medium and imaging depth

 

Measured in Hz

Term
Temporal Resolution
Definition

"Accuracy in time"

 

The ability to precisely position moving structures from instant to instant

 

Determined by frame rate

 

Measured in Hz

Term
Tframe
Definition
# pulses * PRP
Term
PRP
Definition

Pulse repetition period

 

Also considered round trip time of the pulse

Term
Sonographer-Controlled Setting for Frame Rate
Definition

Imaging depth

 

Number of pulses in each picture

Term
Factors Affecting Number of Pulses per Image
Definition

Number of pulses per scan line (multi-focus vs single focus)

 

Sector size

 

Lines per angle of sector (line density)

Term
Resolution Advantages
Definition

Lateral resolution increases with multi-focusing

 

Spatial resolution increases with higher line density

Term
Flicker Fusion Rate
Definition

Frame rate required to reproduce motion in video without a "flickering" effect

 

Approximately 25 frames per second (fps)

Supporting users have an ad free experience!