ARDMS (American Registry for Diagnostic Medical Sonography) Practice Test

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Select the type of transducer that produces an image that takes on the shape of a parallelogram when it is electronically steered.

  1. Linear phased array

  2. Linear sequential array

  3. Annular phased array

  4. Convex array

The correct answer is: Linear sequential array

The correct answer is linear sequential array. When an image produced by a transducer takes on the shape of a parallelogram after electronic steering, it indicates the use of a linear sequential array transducer. This type of transducer is capable of electronically steering the ultrasound beam in different directions, allowing for better visualization of structures and anatomy from various angles. Linear phased array transducers produce images in a fan or wedge shape. Annular phased array and convex array transducers do not typically produce images in the shape of a parallelogram when electronically steered.

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