Question 1

The as low as reasonably achievable (ALARA) principle regulates ultrasound instruments.

Accepted Answer

A) True 
 B)False  False

Question 2

In soft tissue,a temperature rise is considered significant once it exceeds ________.

Accepted Answer

A)  2 °C 
B)  4 °C 
C)  2 °F 
D)  4 °F 
A)  2 °C 
B)  4 °C 
C)  2 °F 
D)  4 °F A

Question 3

The extent of temperature rise produced depends on

Accepted Answer

A)  intensity and frequency 
B)  type of tissue and intensity 
C)  penetration depth and frequency 
D)  number of focal zones and intensity 
A)  intensity and frequency 
B)  type of tissue and intensity 
C)  penetration depth and frequency 
D)  number of focal zones and intensity A

Question 4

Which of the following describes cavitation?

Accepted Answer

A)  Flow in an absorbing fluid. 
B)  Conversion of ultrasound to heat. 
C)  Temperature rise as ultrasound propagates through tissue. 
D)  Production and behavior of bubbles in a liquid medium. 
A)  Flow in an absorbing fluid. 
B)  Conversion of ultrasound to heat. 
C)  Temperature rise as ultrasound propagates through tissue. 
D)  Production and behavior of bubbles in a liquid medium.

Question 5

The American College of Radiology (ACR) Ultrasound Accreditation Program requires at least ________ testing for instrument quality control.

Accepted Answer

A)  semimonthly 
B)  monthly 
C)  semiannual 
D)  annual 
A)  semimonthly 
B)  monthly 
C)  semiannual 
D)  annual

Question 6

Biological effects have not occurred at temperatures lower than ________.

Accepted Answer

A)  39 °C 
B)  42 °C 
C)  39 °F 
D)  42 °F 
A)  39 °C 
B)  42 °C 
C)  39 °F 
D)  42 °F

Question 7

Tissue-equivalent phantoms are filled with a substance containing ________.

Accepted Answer

A)  water 
B)  quartz 
C)  silicone 
D)  graphite 
A)  water 
B)  quartz 
C)  silicone 
D)  graphite

Question 8

Which of the following cannot be measured or calculated by a hydrophone?

Accepted Answer

A)  Period. 
B)  Amplitude. 
C)  Impedance. 
D)  Pulse duration. 
A)  Period. 
B)  Amplitude. 
C)  Impedance. 
D)  Pulse duration.

Question 9

The spatial peak temporal peak (SPTP) intensity is used in the American Institute of Ultrasound in Medicine (AIUM) statement on mammalian bioeffects.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is not assessed with a tissue-equivalent (TE) phantom?

Accepted Answer

A)  Penetration. 
B)  Beam width. 
C)  Dynamic range. 
D)  TGC operation. 
A)  Penetration. 
B)  Beam width. 
C)  Dynamic range. 
D)  TGC operation.

Question 11

Test objects are used by engineers rather than instrument operators.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following pulsed imaging techniques demonstrates the highest acoustic output?

Accepted Answer

A)  Gray-scale. 
B)  Motion mode. 
C)  Color Doppler. 
D)  Spectral Doppler. 
A)  Gray-scale. 
B)  Motion mode. 
C)  Color Doppler. 
D)  Spectral Doppler.

Question 13

A medical indication for a sonography examination is part of the as low as reasonably achievable (ALARA) principle.

Accepted Answer

A) True 
 B)False

Question 14

The piezoelectric material commonly used in hydrophones is ________.

Accepted Answer

A)  PVD 
B)  PVDF 
C)  PZT 
D)  PZTF 
A)  PVD 
B)  PVDF 
C)  PZT 
D)  PZTF

Question 15

No bioeffects have been observed in mammalian tissues at mechanical index values of less than ________.

Accepted Answer

A)  0.4 
B)  0.3 
C)  0.2 
D)  0.1 
A)  0.4 
B)  0.3 
C)  0.2 
D)  0.1

Question 16

Which of the following pulsed-wave techniques demonstrates the lowest sonographic output?

Accepted Answer

A)  M (motion)-mode. 
B)  Gray-scale. 
C)  Color Doppler. 
D)  Spectral Doppler. 
A)  M (motion)-mode. 
B)  Gray-scale. 
C)  Color Doppler. 
D)  Spectral Doppler.

Question 17

Test objects evaluate ________.

Accepted Answer

A)  amplitude 
B)  detail resolution 
C)  dynamic range 
D)  temporal resolution 
A)  amplitude 
B)  detail resolution 
C)  dynamic range 
D)  temporal resolution

Question 18

Which of the following is a biological consequence of hyperthermia?

Accepted Answer

A)  Glaucoma. 
B)  Macrophthalmia. 
C)  Abdominal wall defects. 
D)  Multicystic renal disease. 
A)  Glaucoma. 
B)  Macrophthalmia. 
C)  Abdominal wall defects. 
D)  Multicystic renal disease.

Question 19

No bioeffects have been observed in mammalian tissues that contained well-defined gas bodies at peak rarefactional pressure values (MPa) of less than ________.

Accepted Answer

A)  0.4 
B)  0.2 
C)  0.3 
D)  0.1 
A)  0.4 
B)  0.2 
C)  0.3 
D)  0.1

Question 20

Which of the following relates to heating?

Accepted Answer

A)  Impedance. 
B)  Sound speed. 
C)  Distance from transducer. 
D)  Absorption. 
A)  Impedance. 
B)  Sound speed. 
C)  Distance from transducer. 
D)  Absorption.

The as low as reasonably achievable (ALARA) principle regulates ultrasound instruments.

In soft tissue,a temperature rise is considered significant once it exceeds ________.

The extent of temperature rise produced depends on

Which of the following describes cavitation?

The American College of Radiology (ACR) Ultrasound Accreditation Program requires at least ________ testing for instrument quality control.

Biological effects have not occurred at temperatures lower than ________.

Tissue-equivalent phantoms are filled with a substance containing ________.

Which of the following cannot be measured or calculated by a hydrophone?

The spatial peak temporal peak (SPTP) intensity is used in the American Institute of Ultrasound in Medicine (AIUM) statement on mammalian bioeffects.

Which of the following is not assessed with a tissue-equivalent (TE) phantom?

Test objects are used by engineers rather than instrument operators.

Which of the following pulsed imaging techniques demonstrates the highest acoustic output?

A medical indication for a sonography examination is part of the as low as reasonably achievable (ALARA) principle.

The piezoelectric material commonly used in hydrophones is ________.

No bioeffects have been observed in mammalian tissues at mechanical index values of less than ________.

Which of the following pulsed-wave techniques demonstrates the lowest sonographic output?

Test objects evaluate ________.

Which of the following is a biological consequence of hyperthermia?

No bioeffects have been observed in mammalian tissues that contained well-defined gas bodies at peak rarefactional pressure values (MPa) of less than ________.

Which of the following relates to heating?

Introduction

Ultrasound

Transducers

Instruments

Doppler Principles

Artifacts

Filters

Exam 7: Performance and Safety

The as low as reasonably achievable (ALARA) principle regulates ultrasound instruments.

In soft tissue,a temperature rise is considered significant once it exceeds ________.

The extent of temperature rise produced depends on

Which of the following describes cavitation?

The American College of Radiology (ACR) Ultrasound Accreditation Program requires at least ________ testing for instrument quality control.

Biological effects have not occurred at temperatures lower than ________.

Tissue-equivalent phantoms are filled with a substance containing ________.

Which of the following cannot be measured or calculated by a hydrophone?

The spatial peak temporal peak (SPTP) intensity is used in the American Institute of Ultrasound in Medicine (AIUM) statement on mammalian bioeffects.

Which of the following is not assessed with a tissue-equivalent (TE) phantom?

Test objects are used by engineers rather than instrument operators.

Which of the following pulsed imaging techniques demonstrates the highest acoustic output?

A medical indication for a sonography examination is part of the as low as reasonably achievable (ALARA) principle.

The piezoelectric material commonly used in hydrophones is ________.

No bioeffects have been observed in mammalian tissues at mechanical index values of less than ________.

Which of the following pulsed-wave techniques demonstrates the lowest sonographic output?

Test objects evaluate ________.

Which of the following is a biological consequence of hyperthermia?

No bioeffects have been observed in mammalian tissues that contained well-defined gas bodies at peak rarefactional pressure values (MPa) of less than ________.

Which of the following relates to heating?

Introduction

Ultrasound

Transducers

Instruments

Doppler Principles

Artifacts

Filters