Ultrasound knobology basics Flashcards
How do you choose the right probe for the job?
Ask yourself:
-What application am i using the ultrasound machine for?
-How deep are the structures I’m trying to visualize?
-How big or small of a footprint do i need?
-Does it involve a procedure?
-Does it involve a cavity?
What probe is used for soft tissues, musculoskeletal, pediatric, ocular, trachea, thyroid, thoracic, most procedures, DVT, appendicitis, and testicular applications?
Linear
What is the frequency of a linear probe?
5-15 MHz
What probe is used for general abdominal, eFAST, renal, aorta, IVC, bladder, bowel, OB/Gyn applications?
Curvilinear
What is the frequency of a curbilinear probe?
2-5 MHz
What probe is used for cardiac, abdominal, eFAST, renal, bladder, bowel, IVC applications?
Phased array/sector
What is the frequency of the phased arry probe?
1-5 MHz
What probe is used for OB/Gyn, peritonsillar abscess applications?
Endocavity
What is the frequency of the endocavity probe?
8-13 MHz
What is the most important deciding factor for choosing a probe?
Resolution, penetration, and footprint size
What is the ultrasound “footprint”?
Refers to the area on the probe that comes in contact with the patient’s skin in order to produce an ultrasound image.
Where is the ultrasound footprint located?
The very tip of the probe and it usually has a soft “rubbery” feel.
Which probe will give you the best resolution out of all of the probes but is only able to see superficial structures?
Linear probe
Which probe will give you a rectangular field of view?
Linear probe
Which probe is low- frequency and has a large-wide footprint, allowing for better lateral resolution?
Curvilinear Probe
