Image Detective
Ultrasound 101
Clinical
Know Your Probe
???
100
what is this an ultrasound of?
The Heart
100
What does "POCUS" stand for?
Point-of-care Ultrasound
100
A trauma patient is hypotensive after a road traffic accident. What POCUS exam can quickly look for internal bleeding?
FAST/eFAST
100
This ultrasound probe has a flat, rectangular face, operates at a high frequency, and is ideal for imaging superficial structures like blood vessels and the thyroid.
linear probe
100
What type of wave does diagnostic ultrasound use?
Sound waves
200
What is the diagnosis? (Hint: barcode appearance)
Pneumothroax
200
Which probe is commonly used for superficial structures and vascular access?
Linear Probe
200
A patient suddenly becomes short of breath. You see absent lung sliding on one side. What diagnosis should you suspect?
Pneumothorax
200
This probe features a large, curved footprint that provides a wide sector view, making it the primary choice for deep abdominal and OB/GYN scanning.
Curvilinear probe
200
Ultrasound technology was inspired in part by technology used to detect underwater objects during which major historical event
World War 1
300
B lines
300
Which setting adjusts the overall brightness of the entire ultrasound image by amplifying the returning electrical signals equally?
Overall Gain
300
A patient presents with severe shortness of breath and bilateral B-lines are seen on lung ultrasound. What is a major diagnosis to consider?
Pulmonary edema
300
What Probe is this?
Phased Array probe
300
Which medical specialty was among the early adopters of bedside ultrasound for rapid assessment of critically ill patients?
Emergency medicine
400
Hint: Gallbladder
Gall stones/ cholecystitis
400
On ultrasound, fluid that is completely black is described as what?
Anechoic
400
A hypotensive patient has a large, poorly contracting left ventricle on cardiac POCUS. What type of shock does this suggest?
Cardiogenic shock
400
Unlike standard external transducers, this specialized probe uses an elongated design tailored for transvaginal or transrectal insertion to achieve high-resolution views of pelvic structures.
Endocavity Probe
400
Unlike a traditional comprehensive ultrasound study, what is a key characteristic of POCUS?
It is focused on a specific clinical question and integrated into immediate patient care
500
Morrisons Pouch
500
Why can a phased-array probe be particularly useful for cardiac POCUS?
Its small footprint allows it to fit between the ribs while still imaging deeper structures.
500
A patient with hypotension has a dilated right ventricle on cardiac POCUS. What potentially life-threatening diagnosis should you consider?
Massive pulmonary embolism
500
Higher frequency ultrasound probes offer superior image resolution compared to lower frequency probes, but they suffer from this major trade-off regarding the ultrasound beam
Decreased depth penetration
500
What is the key limitation of ultrasound in imaging structures behind bone or air-filled organs?
Bone and air strongly reflect or attenuate ultrasound, limiting visualization beyond them