Mechanical transducer Study guides, Class notes & Summaries

bulls eye sign - Ultrasound appearance of gastroesophageal junction? rugae - irregular folds in stomach formed by mucosa and submucosal 5 mm's - the undistended wall should not exceed how many mm's haustrae - what are the large sacculations of the colon called? thickened loops with no change with compression - slow graded transducer pressure is applied with evaluation of gi tract, what would these findings reveal? target sign and pseudo kidney sign - what is the classic appearan...

SPI ARDMS Exam Review Final Questions and Answers ultrasound imaging type in which pulses are reflected and used to produce a display - CORRECT ANSWER-pulsed wave brightness of the dots on image - CORRECT ANSWER-amplitude round-trip travel time per cm in soft tissue - CORRECT ANSWER-13 microseconds A line produced on a display that represents ultrasonic echoes returning from the body. A sonographic image is composed of many such lines. - CORRECT ANSWER-scan line Type of image presented...

Imaging a superficial mass, you adjust controls to optimize spatial resolution. What does spatial resolution consist of? - correct answer Lateral and axial resolution Which of the following does not display a sector format? - correct answer Linear-sequenced array Axial Resolution is equal to - correct answer spatial pulse length divided by 2 Resolution of of two structures at different depths along the path of the sound beam is termed: - correct answer Axial resolution Which of the f...

CEFM Practice Test Questions And Answers The paper speed used with EFM in North America is: a. 1cm/min b. 2cm/min c. 3cm/min - ANS C. 3cm/min The US transducer on the EFM measures the a. Electrical signal of the fetal heart b. Mechanical movement of the fetal heart reflected off of sound waves c. R to R intervals of the fetal heart - ANS b. Mechanical movement of the fetal heart reflected off of sound waves The purpose of the autocorrelation in external monitoring is to ...

DAVIES SPI: III. Ultrasound Transducers (20% of ARDMS) Questions and Answers 2023 This image was obtained with a linear array transducer. The trapezoidal field of view increases the field of view. How is the trapezoidal shape created? See image for question #244 A. Electronic beam steering B. Side lobes C. Grating lobes D. Mechanically steering the elements E. Mirror A. Electronic beam steering <A trapezoidal image can be obtained with a linear array transducer by electronically ...

ARDMS SPI Exam (2024) || All Questions & Answers (Graded A+) ARDMS SPI Exam (2024) || All Questions & Answers (Graded A+) The range of frequencies produced by a damped PZT element is called: a. fundamental frequencies b. Q Factor c. near field d. bandwith - ANSWER - d. bandwidth The percentage of time that the ultrasound instrument is emitting ultrasound is called: a. PRF b. pulse duration c. pulse repetition period d. duty factor - ANSWER - d. duty factor; the maximum value is ...

SPI Practice Questions Answers A Which of these terms means 'many gray shades'? A wide dynamic range B bistable C high contrast D highly compressed signal E few choices ️A wide dynamic range Which of the following will result in the highest mechanical index? A high intensity and high frequency B low frequency and high signal amplitude C low intensity and low frequency D high frequency and low power ️B low frequency and high signal amplitude mechanical index is inver...

CCI Physics of Ultrasound-URR Exam | Questions & Answers (100% Correct) CCI Physics of Ultrasound-URR Exam | Questions & Answers (100% Correct) Which of the following adjustments will change the image data that will be stored in the memory of the ultrasound system? A) Both pre-processing and post-processing B) Post-processing C) Changing monitor contrast settings at the beginning of the exam. D) Pre-Processing - ANSWER - Pre-processing-is performed as the image is "live" or in real tim...

Which of the following adjustments will change the image data that will be stored in the memory of the ultrasound system? A) Both pre-processing and post-processing B) Post-processing C) Changing monitor contrast settings at the beginning of the exam. D) Pre-Processing - Pre-processing-is performed as the image is "live" or in real time, before it has been stored to memory. Which measurement of beam intensity is used to describe levels of intensity associated with US bioeffects? A) Sp...

ARDMS SPI EXAM STUDY GUIDE 180 Questions with Verified Answers In soft tissue, if the frequency of a wave is increased the Propagation Speed (PS) will... - CORRECT ANSWER Remain the Same because stiffness and density affect Propagation Speed. What is the audible range? - CORRECT ANSWER 20-20,000Hz >20,000Hz=Ultrasound Frequency is measured in - CORRECT ANSWER Hertz (Hz) is Cycles per Second Not affected by sonographer Increase Frequency; Decrease Depth A period is t...