Examination
The patient is asked to drink a suspension of barium sulfate. Fluoroscopy images are taken as the barium is swallowed. This is typically at a rate of 2 or 3 frames per second. The patient is asked to swallow the barium a number of times, whilst standing in different positions, i.e. AP, oblique and lateral, to assess the 3D structure as best as possible. This technique induces gas production in the esophagus, and can be uncomfortable to the subject.
Read more about this topic: Barium Swallow
Famous quotes containing the word examination:
“The Afrocentric exploration of the black past only scratches the surface. A full examination of the ancestry of those who are referred to in the newspapers as blacks and African Americans must include Europe and Native America.”
—Ishmael Reed (b. 1938)
“Whilst Marx turned the Hegelian dialectic outwards, making it an instrument with which he could interpret the facts of history and so arrive at an objective science which insists on the translation of theory into action, Kierkegaard, on the other hand, turned the same instruments inwards, for the examination of his own soul or psychology, arriving at a subjective philosophy which involved him in the deepest pessimism and despair of action.”
—Sir Herbert Read (1893–1968)
“If we justify war, it is because all peoples always justify the traits of which they find themselves possessed, not because war will bear an objective examination of its merits.”
—Ruth Benedict (1887–1948)