Differentiating Cysts in Kidney, Pancreas, and Spleen Quiz

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Which type of ultrasound image shows motion by displaying the images of the part of the body as it is being scanned?

Real-time (correct)

M-mode

Static

B-mode

In ultrasound imaging, what is the term for the increased echogenicity (echo brightness) of tissues behind a structure that causes little or no attenuation of the ultrasound waves?

Tissue shading

Acoustic shadowing

Acoustic enhancement (correct)

Sound masking

Which type of ultrasound image is two-dimensional and shows all the tissue traversed by the ultrasound scan?

B-mode (correct)

M-mode

Dynamic

Real-time

What is the term for the decreased echogenicity of tissues behind a structure that causes marked attenuation of the ultrasound waves?

Acoustic shadowing Signup and view all the answers

Which mode of ultrasound display is most commonly used for cardiac ultrasound?

M-mode Signup and view all the answers

What term describes ultrasound reflections from tissues of different density within an organ, such as gallstones within the gallbladder?

Internal echoes Signup and view all the answers

Which ultrasound term is used to describe a structure that appears darker compared to surrounding tissues?

Hypoechoic Signup and view all the answers

In ultrasound imaging, what does 'hyperechoic' refer to?

Structure with increased echogenicity Signup and view all the answers

Which ultrasound feature causes a dark region to appear beneath a strongly reflecting structure?

Acoustic shadowing Signup and view all the answers

What term in ultrasound imaging refers to the increased echogenicity beyond a fluid-filled cyst?

Acoustic enhancement Signup and view all the answers

What term is used to describe a tissue that has no internal echoes on ultrasound?

Anechoic Signup and view all the answers

Which type of tissue creates dimmer echoes than adjacent tissues on ultrasound?

Lymph nodes Signup and view all the answers

What characterizes a simple cyst on ultrasound imaging?

Anechoic content with thin walls Signup and view all the answers

Which structure can be considered an acoustic window for imaging the right kidney?

Liver Signup and view all the answers

What describes tissues that produce brighter echoes than adjacent tissues on ultrasound?

A cirrhotic liver Signup and view all the answers

What ultrasound appearance is indicative of a normal liver?

Homogeneous parenchyma interrupted by tubular structures with reflective walls Signup and view all the answers

What action can make the hepatic veins dilate during an ultrasound?

Performing the Valsalva manoeuvre Signup and view all the answers

What is the frequency range of ultrasound waves?

20 kHz Signup and view all the answers

Which structure is posteriorly limited by the inferior vena cava in the liver?

Caudate lobe Signup and view all the answers

How are ultrasound waves generated?

By a piezoelectric transducer Signup and view all the answers

How can the aorta typically be identified during an ultrasound of the liver?

As a pulsatile tubular structure behind and medial to the liver Signup and view all the answers

What is the role of a transducer in ultrasound?

Acts as both transmitter and receiver of ultrasound Signup and view all the answers

What type of imaging is key for screening for endemic echinococcosis?

Ultrasound Signup and view all the answers

In which mode of ultrasound are echoes shown as peaks for measurement?

A-mode Signup and view all the answers

Which type of mode is used to build the two-dimensional B-mode image?

A-mode Signup and view all the answers

What is a distinguishing feature of hydatid cysts in ultrasound imaging?

Double linear echo to the cyst wall Signup and view all the answers

How can cysts with solid nodules or thickened walls be viewed?

With suspicion Signup and view all the answers

What feature can be accentuated by moving the patient when observing hydatid cysts on ultrasound?

Fine echogenic debris within the cyst Signup and view all the answers

Which modality is considered the most sensitive for detecting membranes, septa, and hydatid sand within cysts?

Ultrasound Signup and view all the answers

What feature indicates multivesicular cysts in ultrasound imaging?

Presence of multiple daughter cysts Signup and view all the answers

What conditions should be suspected when there is increased echogenicity in the liver parenchyma?

Macronodular cirrhosis Signup and view all the answers

Which feature is consistent with multiple well-defined metastases in the liver on ultrasound?

Irregular outlines with acoustic enhancement Signup and view all the answers

What distinguishes lymphoma from metastases in the liver on ultrasound imaging?

Hypo echogenic masses with irregular outlines Signup and view all the answers

How do haematomas typically appear on ultrasound imaging?

Hyperechogenic with irregular outlines Signup and view all the answers

What characteristic ultrasound feature is seen in macronodular cirrhosis?

Echogenic masses of various sizes with normal intervening tissue Signup and view all the answers

Which condition is suggested when liver masses are hyperechogenic and well circumscribed on ultrasound?

Metastases Signup and view all the answers