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Título del libro: Obstetric Imaging: Fetal Diagnosis And Care: Second Edition
Título del capítulo: Ultrasound Physics for the Clinician

Autores UNAM:
IVAN MIGUEL ROSADO MENDEZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2017
Palabras clave:

Frequency; Physics; Pulse; Resolution; Ultrasound


Resumen:

This chapter reviews basic physics principles behind medical ultrasound (US). Six components are discussed: the stimulus (the US pulse), the object (the human body), the object's response to the stimulus (the echo), the source of the stimulus and the response detector (the US transducer), and the image generator (the scanner). These components are used as a frame of reference to explain important concepts such as descriptors of the US pulse (frequency and amplitude); pulse-echo signal generation; attenuation, reflection, and scattering of US energy; speckle and echogenicity; and image quality in terms of spatial, temporal, and contrast resolutions. Also addressed is the trade-off between image quality and acoustic energy deposition. © 2018 Elsevier Inc. All rights reserved.


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