Spi 2 Exam 4 2024 With 100% Correct Answers

If transmit power level is unchanged what frequency would be associated with the lowest Mechanical Index? {Ans: High frequencies}Which of the following phantoms can be used to evaluate performance Doppler systems? {Ans: String phantom}What is a hydrophone? {Ans: Used to test intensity in a sound beam}What does the AIUM 100mm Test Object test? {Ans: Lateral Resolution Elevation Resolution Axial Resolution Dead Zone Registration Accuracy Depth and Horizontal Distance Calibration System Sensitivity (Hint: All seven can be represented by the acronym LEAD RDS. This might help some of you memorize it better.)}What are two types of bioeffects? {Ans: Thermal and Mechanical}How are the best epidemiologic studies performed? {Ans: Prospectively and randomized}