images of the patient’s anatomy together with superimposed graphic information depicting the position of the LG as well as position of the target lesion.

The virtual 3D bronchial tree made possible with the technology extends deep into the lung parenchyma and enables several automated features such as automatic registration, automated pathway planning, and airway sync. Further, the customized high-de nition views offer bronchoscopist multiple navigation perspectives to improve detection and diagnosis. A high de nition widescreen allows six viewports to be displayed simultaneously, including one video input, enabling the physician to evaluate positional data and optimize central and peripheral guidance within the lung (Fig. 24.4).

The Edge Catheter: Extended Working Channel (EWC)

Since the adult size fexible bronchoscope cannot be advanced beyond the fourth or fth generation bronchus the iLogic system provides an extended working channel with the distal end angulated at different degrees to facilitate approaching the

PPL (Edge). The Edge catheter is a 130-cm-long, 1.9-mm-diameter fexible catheter, serving as a EWC for the FB. It is available with its distal end curved at 45°, 90°, 180°, and medial angles. The distal tip of this catheter could be soft or hard and based on the bronchoscopists preference. These options are to facilitate navigation between the SPN and the adjacent bronchus, as judged by the bronchoscopist. The Edge navigation catheter can be steered to the SPN in 360-degree fashion. The proximal white steering knob has a socket for connecting a wire, which relays the information from the sensor to the main computer (Fig. 24.5).

Once the tip of the bronchoscope is wedged into the segmental bronchus of interest, the LG is advanced along with the EWC under the guidance provided by the navigation system. Upon reaching the desired target, the LG is withdrawn leaving the EWC in place. The biopsy tools (needle, cytology brush, and forceps) then are inserted through the EWC to sample the target. In 2015, the GenCut biopsy device is one of the most recent biopsy tools in the EMN-SD navigation system. It is activated with aspiration to create