Disclosed herein are methods and systems providing improvements enhancing speed and accuracy in interpreting the electrocardiogram (ECG) for ischemia identification using a graphical presentation. An ischemia criteria and ST segment measurements to be tested are graphically presented simultaneously. The graphical presentation allows the violation of the ischemia criteria to be visualized without any ambiguity. To further ensure that such a condition will not be overlooked, additional graphical highlighting is provided. This graphical approach can be used to improve the detection of conditions that fulfill the specified ischemia criteria and reduce the variation of individual interpretation for patients with border-line ST segment changes.