Effectiveness of Endovascular Navigation With Fiber Optic RealShape Technology: A Single-Center Prospective Study of the First 50 Patients

Fiber Optic RealShape (FORS) is a new, light-based imaging modality that allows real-time three-dimensional visualization of endovascular wires and catheters without radiation. The purpose this study to report our early experience on the feasibility limitations related FORS. Data from all consecutive patients undergoing FORS-guided procedures at single center were prospectively collected reviewed (2/2020-12/2021). Challenges vessel catheterization, including stenosis >50% angulation >45º, assessed. Time required for each catheterization radiation exposure (fluoroscopy time, dose area product, estimated skin dose) collected. primary outcome measure was FORS technical success, defined as successful wire catheter navigation into target artery using only A per-task analysis conducted. Secondary end points included time catheterization. enrolled total 50 patients: 45 treated aortic aneurysm, 4 iliac 1 splenic aneurysm. Overall, 201 tasks identified used 186 (93%) tasks. There no complications success 62% (n = 116). Reduced associated with cannulation renal arteries, angulation, (Table). Catheterization through branch complex endograft frequently non-FORS (technical 18%; 0.001). Successful task significant fourfold reduction (dose product 12.5 vs 4.4 cGy cm2, P < .001). Initial technology has been moderate cannulating vessels high potential in reducing exposure. reduced rate observed challenging anatomy appears be limited availability shapes its device properties. Iterative improvements are underway address these hopes increasing success.TableRisk factors specifications (task N 186)Success rate, No. (%)P valueTarget Celiac artery2815%13 (46).01 Superior mesenteric artery3217%26 (81) Renal artery7038%35 (50) Accessory artery74%6 (86) Hypogastric artery126%9 (75) Other116%8 (73) Contralateral gate2614%19 (73)Catheterization Branch6333.9%33 (52).01 Fenestration7439.8%44 (59)Target take-off >45°189.7%6 (33).007Stenosis >50%126.5%2 (17).001 Open table new tab