Spi ultrasound Study guides, Class notes & Summaries

SPL CORRECT ANSWER wavelength x # of cycles With phased array transducers, the transmitted sound beam is steered by CORRECT ANSWER Varying the timing of pulses to the individual piezoelectric elements What type of wave is sound? CORRECT ANSWER mechanical and longitudinal The Frequency ranges for Ultrasound are: CORRECT ANSWER > 20,000 Hz (20kHz) The speed of sound in soft tissue is: CORRECT ANSWER 1540 m/s Linear sequence Array CORRECT ANSWER transducer that fires the elements ...

What is frequency determined by? correct answers The source, thickness of piezoelectric element and propagation speed to a lesser degree Thicker element is equal to ________ frequencies correct answers Lower What is the reciprocal of frequency and what is the symbol correct answers Period, T The time it takes for 1 cycle to occur correct answers Period What is propagation speed determined by correct answers Stiffness and density of the medium Propagation speed of sound through sof...

ULTRASOUND PHYSICS - MOCK EXAM QUESTIONS FOR SPI (ANSWERED) TO SCORE A+

ARDMS,SPI Exam Review (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What happens to axial resolution when spatial pulse length is decreased? Answer: improves Q: How much will a 3.5 MHz pulse be attenuated after passing through 2 cm of soft tissue? Answer: 3.5 dB Q: Propagation speed errors result in Answer: improper axial position Q: Enhancement is caused by Answer: weakly attenuating structures ...

Ultrasound Physics: SPI Review, ALL Chapters, Formulas & Relationships Comprehensive Guide.

What is frequency determined by? - Answer- The source, thickness of piezoelectric element and propagation speed to a lesser degree Thicker element is equal to ________ frequencies - Answer- Lower What is the reciprocal of frequency and what is the symbol - Answer- Period, T The time it takes for 1 cycle to occur - Answer- Period What is propagation speed determined by - Answer- Stiffness and density of the medium Propagation speed of sound through soft tissue - Answer- 1,540 m/s ...

Ultrasound Physics SPI exam

Edelmen's SPI Exam Review Questions With 100% Correct Answers 2024 Sound waves are: a) electric b) mechanical, transverse c) spectral d) longitudinal, mechanical - ANS-D The speed of sound of ultrasound in soft tissue is closest to: a) 1,540 km/sec b) 1.54 km/sec c) 1,500 m/s d) 1,540 mm/sec - ANS-C Which is not an acoustic variable? a) density b) pressure c) distance d) intensity - ANS-D The effects of soft tissue on ultrasound are called: a) acou...

2024 ARDMS SPI EXAM LATEST VERSION WITH 200+ QUESTIONS AND CORRECT VERIFIED ANSWERS/ ARDMS SPI EXAM PREP GUIDE (QUESTIONS WITH CORRECT ANSWERS) The range for ultrasound begins: a. 20 Hz b. 20,000 Hz c. 2 MHz d. 15 MHz - ANSWER-b. 20,000 Hz (useful frequency range for clinical imaging is 2MHz-10MHz) Increasing wavelength will ___________ frequency. a. increase b. decrease c. not change d. cannot be predicted. - ANSWER-b. decrease The Nyquist Limit is equal to: a. propagation sp...