Stand off una separación que aleja al traductor cuando debe se separado para alanzar un órgano del cuerpo o porque el traductor no se aplique directamente sobre una superficie o en la piel humana. Para estos casos la separación (tipo almohadilla) no puede ser más de 0.1 cm

It can sometimes be impossible to visualize either kidney in its entirety in longitudinal posterior projection, using a sector transducer because of the width of the near field of view is too narrow. In this situation a wider transducer can be helpful. Alternatively, a ***standoff gel-pad** can be used to increase the distance between the transducer and the kidney.

https://books.google.ca/books?id=20S0SYW9EScC&pg=PA57&lpg=PA...

The **stand-off pad increases**** the distance between the transducer and the mass, making it more likely that the mass will be located close to the elevational focus of the sound beam.
34-The intepreting physician has asked you to use a **stand-off pad** to evaluate a superficial mass. What is the main advantage the stand-off pad provides to improve the image?
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