An 87 year old female with a past medical history significant for paroxysmal atrial fibrillation was referred for closure of Left Atrial Appendage. She had an additional history of ascending thoracic aortic aneurysm, hyperthyroidism s/p ablation, hypertension, hyperlipidemia, and bleeding related to ophthalmic hemorrhages.
A pre-procedure CT scan with contrast was completed to evaluate the Left Atrial Appendage.
"The 4D Volume ICE is a novel alternative imaging modality for LAA occlusion especially in patients unsuitable for transesophageal echo or general anesthesia. It allows clear real-time 3D/4D visualization and placement of left atrial appendage occlusion device. The Multiplanar Reconstruction functionality allows to reliably assess the PASS criteria necessary to safely implant the Watchman device1."
Pre-Procedural CT Exam
A pre-procedural computed-tomography (CT) exam with contrast was performed to evaluate the anatomy and dimensions of the Left Atrial Appendage (LAA).
CT scan reconstructions included multiplanar reformats according to left atrial appendage closure protocol.
The estimated LAA ostium measurement was determined to be 18.2 mm.