A test that measures pressure or contractions.

tests to measure pressures in the muscles of the rectum and anus.

A test which measures muscle pressure in muscle coordination in the GI tract. Usually performed for the rectum (rectal manometry) and esophagus (esophageal manometry). See esophageal manometry.

Measurement of the pressure of gases or fluids by means of a manometer.

tests that measure muscle pressure and movements in the GI tract.

Measurement of the pressure or tension of liquids or gases using an instrument known as a manometer.