The Acutus AcqMap mapping catheters uses 48 ultrasound elements to measure cardiac voltage. It uses an inverse dipole density (DD) algorithm to display electrical activation as DD maps on an ultrasound constructed 3-D anatomy in real time.
The display of the 3-D dipole density on the reconstructed anatomy in the Acutus system.
The AcqMap system console.
May 21, 2015 – A preliminary study of a new electrophysiology (EP) dipole density mapping system using a specialized intracardiac ultrasound basket catheter for electro-mapping, was showen to offer four times higher resolution than standard voltage mapping. Researchers also said the new mapping modality represents the electromapping data on computed tomography (CT) quality anatomy. The data suggest it may open the possibility to map irregular arrhythmias with more precision. The data was presented at Heart Rhythm Society’s 2015 meeting.
Acutus Medical presented data that shows its AcQMap high resolution, imaging and mapping system generates a complete heart chamber electrical map that provides a four-fold improvement in resolution to record and display heart tissue function as compared to the standard voltage-based mapping used in patients with atrial flutter. Today’s EP mapping systems used during catheter ablation procedures capture and display a voltage field generated by heart tissue during activation. This voltage field records over a large area of heart tissue at each catheter placement and what is seen by the EP is an average of all the tissue around the catheter, reducing the resolution. This makes it difficult for the EP to see the heart tissue in its “true” resolution and limits the possibility to map accurately and simply diagnosis irregular and complex arrhythmias.