To develop proficiency operating an ultrasound machine. To understand the clinical applications, diagnostic accuracy, and limitations of emergency ultrasonography. To learn to efficiently perform a focused emergency ultrasound examination. To develop proficiency in the ability to diagnose common and potentially life-threatening conditions. Discuss the principle of attenuation and the relationship between ultrasound frequency and depth of penetration.
Readings Describe the tissue interactions such as reflection, echoes, transmission and scatter.
Discuss the relationship between echogenicity and the depiction of ultrasound images as white, gray and black. Discuss the biologic effects and safety considerations related to ultrasonography. Discuss the piezoelectric effect and the differences between mechanical sector scanners and linear electronic transducers in regard to their composition and ability to adjust focal length and direction of an ultrasound beam. Readings Demonstrate the conventional positioning of the marker on the transducer when scanning in the cross-sectional plane and describe the orientation of the resultant image on the display. Readings Describe the effect of transducer frequency, pulse duration, pulse dampening, and proximity of objects on axial resolution.