[The use of the phase-image method for noninvasive topical diagnosis in certain forms of heart rhythm disorders]

The authors describe the results of mapping additional conduction pathways in WPW syndrome and ectopic sources of the ventricular rhythm with the aid of phasic images (PI). The mapping data were compared to the readings of 12 ECG leads and to the electrophysiological findings. The mapping with the aid of PI turned out informative in both patients' groups. The PI method demonstrated the possibility of Kent's bundle mapping in latent WPW syndrome. The use of the PI method is suggested to be the first stage in the mapping of Kent's bundle in WPW patients suffering from supraventricular tachycardias as well as of pathological rhythm sources in ventricular tachycardias refractory to drug therapy in patients who are to undergo surgical treatment.