#1
Which of the following structures produces sound waves in diagnostic medical sonography?
Transducer
ExplanationTransducers produce sound waves in sonography.
#2
What does the term 'echogenicity' refer to in diagnostic medical sonography?
The ability of a structure to produce echoes
ExplanationEchogenicity refers to the capacity of a structure to create echoes.
#3
Which of the following is NOT a type of ultrasound transducer?
Radial array
ExplanationRadial array is not a type of ultrasound transducer.
#4
What is the typical frequency range of ultrasound waves used in medical imaging?
1-10 MHz
ExplanationUltrasound waves in medical imaging usually range from 1 to 10 MHz.
#5
Which anatomical structure is primarily visualized during a renal ultrasound?
Kidney
ExplanationRenal ultrasound primarily visualizes the kidneys.
#6
Which imaging modality is often used in conjunction with ultrasound to enhance diagnostic accuracy?
Computed Tomography (CT)
ExplanationCT imaging complements ultrasound for better diagnosis.
#7
What is the purpose of Doppler ultrasound in medical imaging?
To measure blood flow velocity
ExplanationDoppler ultrasound measures blood flow speed.
#8
What is the main advantage of 3D ultrasound imaging over 2D ultrasound?
Ability to reconstruct volumetric images
Explanation3D ultrasound offers volumetric image reconstruction.
#9
Which of the following is a potential complication of contrast-enhanced ultrasound?
Allergic reaction
ExplanationContrast-enhanced ultrasound may lead to allergic reactions.
#10
What is the main advantage of using ultrasound contrast agents in imaging?
Enhanced visualization of blood flow
ExplanationUltrasound contrast agents improve blood flow visualization.
#11
In obstetric ultrasound, what does the acronym 'BPD' typically refer to?
Biparietal diameter
ExplanationBPD usually denotes biparietal diameter in obstetric scans.
#12
What does the term 'sonoelastography' refer to in diagnostic medical sonography?
Imaging technique for assessing tissue stiffness
ExplanationSonoelastography is used to assess tissue stiffness.
#13
Which of the following conditions is commonly diagnosed using transvaginal ultrasound?
Ovarian cysts
ExplanationTransvaginal ultrasound is commonly used for diagnosing ovarian cysts.
#14
In obstetric ultrasound, what does the term 'AC' typically refer to?
Abdominal circumference
ExplanationAC in obstetric ultrasound refers to abdominal circumference.
#15
What does the term 'sonohysterography' refer to in diagnostic medical sonography?
Assessment of uterine fibroids
ExplanationSonohysterography assesses uterine fibroids.