Method and display for long term physiological signal quality indication

A medical display method for displaying electrocardiography (ECG) signals, said medical display method comprising:

• receiving an ECG signal of a patient from electrodes placed on the patient, the ECG signal spanning a period of time;
• determining signal quality of the ECG signal over the period of time, wherein the period of time exceeds 1 hour;
• displaying the ECG signal acquired over the period of time using a time scale of less than 1000 pixels per 1 minute such that the ECG signal is displayed with insufficient granularity to identify diagnostic features of the ECG signal;
• and
• displaying the determined signal quality over time and adjacent to the displayed ECG signal.

A medical display system for displaying a physiological signal, the medical display system comprising:

• at least one electrode placed on a patient, the at least one electrode being configured to obtain a physiological signal of the patient, the physiological signal spanning a period of time;
• at least one processor programmed to determine a signal quality of the physiological signal over the period of time, wherein the period of time exceeds 1 hour;
• and
• a display configured to display:
• the physiological signal acquired over the period of time with a time scale of less than 1000 pixels per 1 minute such that the physiological signal is displayed with insufficient granularity to identify diagnostic features of the physiological signal and determine a signal quality of the physiological signal over the period of time and rhythm or morphology changes in the physiological signal;
• and
• an indicator indicative of the determined signal quality over time adjacent to, and temporally aligned with, the physiological signal.