Introduction To Diagnostic ultrasound

Question 1

What are advantages of b-mode scanning?

Answer 1

• patient tolerates it well
• no bowel preparation is necessary
• relatively noninvasive
• no radiation to patient
• anatomic relationships are clearly shown • depth relationships are shown
• time-efficient
• cost-effective
• portable

Question 2

What are disadvantages of b-mode scanning?

Answer 2

• limited applications
• evaluating dense and calcified structures
• evaluating air-filled organs such as the GI tract
  -inability to determine function (compared to Doppler ultrasound)
  -inability to distinguish benign from malignant

Question 3

What is the AIUM?

Answer 3

American institute of ultrasound in medicine

Question 4

Categories of masses?

Answer 4

Cystic, solid, complex

Question 5

Characteristics of a cystic mass?

Answer 5

Well defined borders, no internal echoes (anechoic/sonolucent), and posterior enhancement

Question 6

Characteristics of a solid mass?

Answer 6

Irregular borders, multiple internal echoes, no posterior enhancement

Question 7

Characteristics of a complex mass?

Answer 7

Cystic and solid characteristics

Question 8

A sonographic examination of an organ examines?

Answer 8

• Shape
• echo pattern
• position
• size

Question 9

Range of frequencies for a curved (convex) linear probe?

Answer 9

2.5 - 4.5 MHz

Question 10

Range of frequencies for a linear array probe?

Answer 10

7-12 MHz

Question 11

What is the ideal range of frequencies for images?

Answer 11

2 - 15 MHz

Question 12

Patient position for EVS/TVS ultrasound exam?

Answer 12

Lithotomy position