Electromechanical mapping and Transendocardial Injection Utilizing the NOGA® system

Introduction

The NOGA system combines several technologies that enable you to create real time 3-D maps of the endocardium and allow for evaluation of electrical and mechanical properties of the heart. In addition this system shows an accurate and real- time display of the catheter location. Therefore, by providing accurate real-time catheter movement superimposed on a realistic 3D electroanatomical display the system helps to direct maneuvering of the catheter and facilitates the application of local myocardial therapy to specific regions.

This chapter will guide you to perform a safe and good quality NOGA mapping and transendocardial injections and is derived from experience with multiple procedures over a 10 year period.

Basic concepts

The NOGA XP system constructs the following types of maps: 1) The electroanatomical map which is a geometrical representation of the heart chamber with color-coding correlated to the local activation time; 2) The unipolar voltage map that displays the maximum peak to peak voltage (the amplitude) of the intracavitary signal measure by M1; 3) The Bipolar voltage map that displays the maximum peak to peak voltage of the intracavitary signal measure by M1-M2; 4) the lineal local shortening map that shows the local shortening calculated on the lineal distance from...