Spi artifacts Study guides, Class notes & Summaries

ARDMS SPI Review Exam Questions With Correct Answers Example of nonspecular reflector - ANSWER- red blood cells What happens to spatial pulse length when frequency increases? - ANSWER- decreases Axial resolution is dependent on? - ANSWER- wavelength Lateral resolution is dependent on? - ANSWER- beam diameter Where does the beam of an unfocused transducer diverge? - ANSWER- Fraunhofer zone Reverberation artifacts are a result of - ANSWER- two or more strong reflecting surfaces ...

ARDMS SPI Practice Test A Questions and Answers 2023 Which parameter is most likely to affect spatial resolution?A.dynamic range B.beam width C.system sensitivity D.depth of visualization D.depth of visualization When using a 5MHZ transducer, in which tissue is the ultrasound wavelength shortest? A.fat B.blood C.bone D.muscle A.fat What affects the beam width in the near field? A.Pulse repetition frequency B.Pulse duration C.Frame rate D.Transducer aperture D.Transdu...

ARDMS SPI Practice Exam B Questions and Answers Already Passed Which artifact is illustrated by this image? a) Shadowing b) Side Lobe c) Reverberation d) Mirroring What is increased if the pulse duration is decreased? a) Bandwidth b) Line Density c) Frame Rate d) Duty Factor What is the most appropriate action for the sonographer to take when receiving a verbal order for an exam? a) Deny performance of the exam until a written request is received b) Seek approval from supervisor c) Verbally re...

SPI Practice Questions 1 Latest 2023 Graded A 1. The term Anechoic in relation to a sonographic image means? A. structure that appears lighter than the surrounding structures B. The absence of echos C. A structure that appears the same as surrounding structures D. A structure that reflects 100% of the sound wave B. The absence of echos Question 1 Explanation: An (without) echoic (producing echoes) 2. If you have two near identical systems with different diameter piezoelectric crystals in t...

PMI Practice Exam II - Questions and Answers (Complete Solutions) A new project has a project team that is divided between onsite and offshore locations. Project manager observed a rising conflict between the two parts of the team during project initiation. What should project manager do? Organize a face-to-face meeting during project kick-off. During a progress meeting, the project team learns that an identified risk materialized. The project manager decides to execute the risk response plan,...

ARDMS SPI Study Guide Questions and Answers 2023 One reason why focused beams with low intensities are less likely to cause bioeffects is that a focused beam is less efficient in heating a large mass of tissue to a critical temperature. True Typically, the sonographer can adjust the compression function of a receiver. True Mean frequency is calculated from weighted sum of frequencies in the power spectrum. True Refraction always occurs at the interface between two media ...

CAPM PRACTICE EXAM 2|256 Questions with Verified Answers The experiences of an organization's members are the basis for its _________. A. culture B. structure C. operations D. maturity - CORRECT ANSWER The experiences of an organization's members are the basis for its _________. A= The culture of an organization is created by its members' experiences. Organizational structures can be: A.functional, strategic or balanced. B.functional, projectized or iterative. C....

spi ardms test A and B Questions and Answers 2023 what is dynamic aperture? A.aperture that varies with transmit frequency B.aperture that decreases as a function of time C.aperture that increases with increasing focal length D.aperture that changes as a function of frame rate C to which acoustic variable is penetration depth inversely related? A.frequency B.wavelength C.period D.propagation speed A which imaging mode requires a broadband transducer? A.continuous wave d...

ARDMS SPI Practice Exam Questions and Answers 2023 Which artifact is illustrated by this image? a) Shadowing b) Side Lobe c) Reverberation d) Mirroring What is increased if the pulse duration is decreased? a) Bandwidth b) Line Density c) Frame Rate d) Duty Factor What is the most appropriate action for the sonographer to take when receiving a verbal order for an exam? a) Deny performance of the exam until a written request is received b) Seek approval from supervisor c)...

ARDMS - SPI Study Questions and Answers 2023 Which technique utilizes frequency modulation of the transmitted pulse to improve signal to noise ratio? spatial compounding Which angle of isonation to blood flow produces the maximum doppler shift? 180 degrees Which imaging mode requires two elements mounted side by side? continuous wave doppler What is a benefit of using contrast agents? increased amplitude of the returning dopplers What is the most common cause of ...