Instrumentation And Controls Flashcards
Displays images in black and white combinations only
Bi-stable scanning
A single dimension display consisting of a horizontal baseline
A-mode ( Amplitude mode)
A-mode is used for
ophthalmology
Spikes depicting the acoustic interfaces
Deflection
Two dimensional display of ultrasound.
B-mode /Brightness mode
B-mode is also called
B-Scan or Gray scale sonography
Used to visualize things that are physically moving.
Tho motion is one dimensional scan line is displayed.
M-Mode / Motion Mode
Older references for M-mode
TM mode / Time Motion mode
Most commonly used in the evaluation of cardiac valves and fetal heart activity
M-mode
Uses the frequency shift of sound waves to measure velocity
Doppler
Most commonly used modes of doppler
Color - Flow Doppler
Power or Angio Doppler
Spectral Doppler (PW and CW)
Designed to regulate the intensity pf echoes from various depths
Controls
Adjusting tge B-mode image
Depth Gain Time - gain compensation Zoom Keyboard Focus Dynamic Range Extended field of view
Ultrasound Scanning Modes
Bi-stable scanning A-Mode B-Mode M-Mode Doppler
Controls how much distance into the body the image displays in the far field
Used to adjust the size of the image
Depth
Depth is decreased, superficial structures will be
Magnified
Knob that adjust the overall UTZ echo signal
Gain
Allow selective control of gain at different depths
Time Gain Compensation (TGC)
Allows for the magnification of one area on the screen
Zoom
Various capabilities as provided by the manufacturers
Keyboards
Concentrates the sound beam into a smaller beam area than would exist otherwise
Focus
Determines how many shades of gray are demonstrated on an image
Dynamic Range
Real time ultrasound successive frames to form a panoramic image as the transducer is moved across the patient
Extended Field of View
Achieved by manually sliding the transducer in a direction parallel to the scan plane
Paranomic imaging
Manipulating the image
Freeze Cine Loop Trackball Calipers Acquiring images PACS Output device
Used to create a still image on the monitor
Freeze
Allows operator to review a sequence of acquired image
Cine loop
Allows the sonographer to select an appropriate image for study
Slow - motion review
Used for moving objectson the monitor
Trackball
Available to measure distances
Caliper
Measurements of utz machine
Linear
Circumference
Area
Volume
Images may be captured for archival or export
Acquiring Images
Electronically communicating image and associated imformation to workstation and devices external to the sonigraphic instruments
Picture Archiving and Communication Systems
Produce to allow videotaping of realtime scanning or to produce hard copies of frozen images
Output devices
Measurement of the elastic properties of tissue and ultrasound can be used for this purpose
Elastography
Use of a contrast agent to visualize the patency of the fallopian tube
Investigation of infertility
Hysterosalpingo Contrast Sonography
Allows physicians to view the features of a baby’s face or hands
3D ultrasound
Innovative way to examine a moving heart
Spatial Temporal Image Correlation (STIC)
Smaller and less expensive than conventional full-sized full featured models
Portable ultrasound scanners
World’s first smartphone based ultrasound imaging system
Mobisante
To aid in promoting a higher quality of care and greater patient safety across your entire workflow
Acuson Freestyle
