Perioperative Transesophageal Echocardiography Self-Assessment and Review
, by Click, Roger L.; Cai, Joy X.; Abel, Martin D.Note: Supplemental materials are not guaranteed with Rental or Used book purchases.
- ISBN: 9780781755764 | 078175576X
- Cover: Paperback
- Copyright: 11/24/2007
Which one of the following best describes the cause of shadowing? A. The structure within the shadow has high acoustic impedance. B. The structure within the shadow has high attenuation. C. The strong reflector in front of the shadow has high attenuation. D. A low-intensity ultrasound beam was emitted by the transducer. E. The resolution within the shadow is poor.