Which term describes a region that returns no echo, appearing completely black on ultrasound?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the VetSkill PCA Lab and Diagnostics Test with study tools like flashcards and multiple-choice questions. Each question comes with hints and explanations. Get exam-ready with us!

Multiple Choice

Which term describes a region that returns no echo, appearing completely black on ultrasound?

Explanation:
In ultrasound imaging, brightness reflects how many echoes come back to the transducer. A region that produces no echoes appears completely black, which is called anechoic. This typically indicates a fluid-filled space with few internal interfaces to reflect sound, such as a cyst or the bladder. Fluids transmit sound well, often leading to posterior acoustic enhancement behind the anechoic area. In contrast, a region that is very bright is hyperechoic due to strong reflections (like bone), a region that looks similar to surrounding tissue is isoechoic, and a region that is darker than surrounding but not completely black is hypoechoic.

In ultrasound imaging, brightness reflects how many echoes come back to the transducer. A region that produces no echoes appears completely black, which is called anechoic. This typically indicates a fluid-filled space with few internal interfaces to reflect sound, such as a cyst or the bladder. Fluids transmit sound well, often leading to posterior acoustic enhancement behind the anechoic area. In contrast, a region that is very bright is hyperechoic due to strong reflections (like bone), a region that looks similar to surrounding tissue is isoechoic, and a region that is darker than surrounding but not completely black is hypoechoic.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy