Map Setup
The beat graph is not updating with every beat, What could cause this?
Reference Trigger (R) is not triggering properly.
Threshold may too high.
Signal on R channel degraded.
Rhythm changed.
What is the default WOI for paced, sinus, and manual map creation on the OPAL HDx system?
150ms
What is the V Window?
Defines the duration of ventricular activation (QRS) for subsequent algorithms to use
FARAVIEW supports rendering of independent petal deflection. True or False?
False
What does the map pattern of carbon fiber surface tell you?
You have collected anatomy but no EGMs in that area
What are the 3 types of Templates available for automatically detecting trigger settings for a New Map. Describe each.
Detected, Previous, Snapshot
To change the Color Bar from a linear to a wheel display, the user must:
Select the Active Map cogwheel, choose Rhythm, and change to Tachycardia and select Early-meets-late.
What does the map pattern of smooth grey surface with no dots tell you?
You have collected anatomy and EGMs in that area, but they are being hidden by V-Overlap
What is the default point projection distance for maps created with the FARAWAVE NAV?
5mm
What is the Confetti effect?
Low confidence caused by inconsistent timing annotation
When setting up a new map using automatic triggering selection, name 3 things that can be performed after selecting Detected and before selecting "Create Map“
Set the V and P blanking windows
Evaluate and adjust Triggers
Evaluate and adjust BACs
Save a FAV beat
Set the Mapping window
In addition to the Beat Acceptance Criteria (BAC) , name 3 additional things the mapper must monitor during mapping.
Appropriate Triggering (accurate detection of R)
Patient is in stable rhythm (CL Graph)
Respiratory Graph
Anatomy collection
Appropriate views for physician
Tracking Quality Indicator (TQI)
System Reference Electrode location
When mapping the cavotricuspid isthmus during a paced vMap, what setting could cause you to misdiagnose the line as “blocked?”
V-overlap
What are the 2 BACs that are default off when using the FARAWAVE NAV?
Motion, Stability
If a beat is rejected in the Review Graph, the data is permanently deleted from the system and cannot be retrieved. True or False?
False
What happens when you P Blank the Reference during a paced map?
P Blank on Reference:
The system will ignore the pacing spike, and your beat graph will stop updating
After changing to a DIFFERENT channel for the Propagation Reference (delta R), the user should be sure to do what?
Adjust sensing threshold
Ensure proper triggering
click “Find Offset” to set the time between the Reference and new Propagation Reference
What is the difference between V-Blanking and V-Overlap?
V-Blanking excludes EGMs from being detected as a Trigger if they fall within the V-Window.
V-Overlap hides EGMs from being displayed on the map when the natural annotation (via Intelligent Annotation) falls within the V-Window.
Deployment/shape detection is determined from impedance measurements between which electrodes on FARAWAVE Nav?
#1-2-4
#3 electrodes
Shaft (when not covered)
What is likely happening if you see a flash of color on the anterior side of a PV?
OPAL HDx is likely annotating on the larger amplitude far-field signal.