PROBLEM TO BE SOLVED: To provide an intracardiac catheter examination apparatus and the like capable of accurately specifying position of arrhythmic focus with electrocardiogram measured at outside of a catheter examination room.SOLUTION: The apparatus comprises: an acquiring part 31 for acquiring first sinus rhythm waveform and first arrhythmic waveform of first electrocardiogram measured by a measuring apparatus arranged outside of a catheter examination room; a measuring part 32 for measuring second electrocardiogram via an electrode attached to a patient waiting in the catheter examination room; a coefficient calculation part 33 for calculating correction coefficient for statistically matching the first electrocardiogram with the second electrocardiogram on the basis of the first sinus rhythm waveform and the second sinus rhythm waveform of the second electrocardiogram; a waveform generation part 34 generating second arrhythmic waveform to be a comparison target of response waveform upon pacing with intracardiac catheter on the basis of the first arrhythmic waveform and the correction coefficient; and a correlation calculation part 36 calculating matching ratio between the response waveform and the second arrhythmic waveform.SELECTED DRAWING: Figure 1
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