Aium - Study guides, Class notes & Summaries

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 True/False: Grating lobes are essential for the proper opera...

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 ...

URR Mock Exams Questions with Correct Answers Which of the following is true regarding CW transducer structure and function? - Answer-CW probes usually have no backing material except a pocket of air posterior to the element You are performing a PW doppler exam. only two cardiac cycles are demonstrated on the screen at one time. What adjustment can be made to demonstrate 5-6 cardiac cycles on the screen at one time? - Answer-decrease the sweep speed What is the primary factor that determ...

AIUM - promote the usage of ultrasound in physical medicine SDMS - promotes excellence in the field and sets high educational standards. adopted a code of conduct ARDMS - evaluates and certifies the proficiency of sonographers brachio- - arm cardio- - heart co- - together colo- - colon, large intestine contra- - against cysto- - bladder dactyl- - pertaining to fingers or toes decub- - side dorso- - backdys- - difficult or painful

"free hand" technique - The transducer and the needle are not connected . Sinologist may hold the transducer in one hand and the needle in the other or sonographer may hold the transducer while the sonologists holds the needle. Is used to drain ascites, pleural fluid and superficial lesions. Abdominal and retroperitoneal color doppler images - - splenic vein and arter - portal vein and renal veins and arteries Should be used to demonstrate blood flow direction and patency as requested or...

f - v/wavelength frequency - number of cycles per second T - 1/f Period - length of time for one cycle 1540 m/s - speed of sound in soft tissue infrasound - <20Hz audible sound - 20Hz-20,000Hz ultrasound - >20,000Hz c - = root (bulk modulus/density) or =stiffness/density bulk modulus - stress/strain I - = P/a P - = E/T Amplitude - maximum deviation from normal A - = max-normal A^2 - proportional to intensity and power PRP - = 1/PRF line tim...

Sonography Canada Core Review Exam 2023. f - ANSWER v/wavelength frequency - ANSWER number of cycles per second T - ANSWER 1/f Period - ANSWER length of time for one cycle 1540 m/s - ANSWER speed of sound in soft tissue infrasound - ANSWER <20Hz audible sound - ANSWER 20Hz-20,000Hz ultrasound - ANSWER >20,000Hz c - ANSWER = root (bulk modulus/density) or =stiffness/density bulk modulus - ANSWER stress/strain I - ANSWER = P/a P - ANSWER = E/T Amplitude - ANSWER maximum deviat...

Sonography Canada Core Review Exam 2023. f - ANSWER v/wavelength frequency - ANSWER number of cycles per second T - ANSWER 1/f Period - ANSWER length of time for one cycle 1540 m/s - ANSWER speed of sound in soft tissue infrasound - ANSWER <20Hz audible sound - ANSWER 20Hz-20,000Hz ultrasound - ANSWER >20,000Hz c - ANSWER = root (bulk modulus/density) or =stiffness/density bulk modulus - ANSWER stress/strain I - ANSWER = P/a P - ANSWER = E/T Amplitude - ANSWER maximum deviat...

The doppler shift is 5000 Hz. The pulse repetition frequency is 9000 Hz. Which of the following is true? A. peak pressure gradient is 36mmHg B. range ambiguity will occur C. aliasing will occur D. the peak velocity is equal to 2 m/s - ️️C. aliasing will occur When evaluating a suspected arterial stenosis, a doppler angel of ____ degrees will produce the most accurate flow velocity. A. 0 B. 30 C. 60 D. 90 - ️️A. 0 Spatial resolution is: A. the minimum reflector separation req...