Guidelines Clinical Practice
Copyright ©2009 The WJG Press and Baishideng.
World J Gastroenterol. Jan 14, 2009; 15(2): 144-150
Published online Jan 14, 2009. doi: 10.3748/wjg.15.144
Figure 2
Figure 2 Simple manometry catheter shown in position in the LOS when it is toned. A: Manometry catheter with the black dot on the catheter indicating the measurement point in the oesophago-gastric junction when a normal LOS is toned or competent causing the sensor to be engulfed or occluded by the sphincter; B: The pressure is indicative of the state of the chamber created by the lumen (area in grey) opening up between the oesophagus and stomach.