Influence of percutaneous local therapy for hepatocellular carcinoma on gastric function

Figure 1 Positions of electrodes for electrogastrography recording. X: Xyphoid process; N: Navel; A: Channel 1 placed on the intersecting point between the right mid-clavicular line (RMCL) and the vertical bisectrix of the line XC; B: Channel 2 placed on the intersecting point between left mid-clavicular line (LMCL) the avertical bisectrix of the line XC; C: Central terminal electrode placed on the patient’s ventral midline approximately halfway between the umbilicus and the xyphoid process; D: Channel 3 placed on the intersecting point between RMCL and the avertical bisectrix of the line NC; E: Channel 4 placed on the intersecting point between LMCL and a vertical bisectrix of the line NC.

Figure 2 Example of the raw electrogastrography signals before percutaneous local therapy for hepatocellular carcinoma (left) and after therapy (right).