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Comparison of Pipeline Embolization Device Sizing Based on Conventional 2D Measurements and Virtual Simulation Using
J M Ospel1, G Gascou2, V Costalat2
1From the Diagnostic and Interventional Neuroradiology Section (J.M.O., K.A.B., D.W.Z.), Department of Radiology and Nuclear Medicine.
AJNR. American Journal of Neuroradiology
|February 9, 2019
Summary
Sim&Size software simulation for Pipeline Embolization Device sizing showed low agreement with manual methods, suggesting potential for optimizing device length selection in aneurysm treatment.
Area of Science:
- Medical Imaging
- Interventional Neuroradiology
- Medical Device Simulation
Background:
- The Pipeline Embolization Device (PED) is used for aneurysm treatment.
- Accurate device sizing is crucial for effective PED deployment.
- Current manual sizing methods may not be optimal.
Purpose of the Study:
- To evaluate if Sim&Size software simulation leads to different PED dimension selection compared to manual sizing.
- To assess the impact of virtual simulation on device selection for aneurysm treatment.
Main Methods:
- A multicenter study involving 74 patients treated with PED.
- Comparison of manual 2D measurements by experienced neurointerventionalists with Sim&Size software computed dimensions.
- Statistical analysis using Cohen κ and Wilcoxon signed rank test.
Main Results:
- Low agreement between manual and computed optimal dimensions (κ for diameter = 0.219, κ for length = 0.149).
- Sim&Size computed optimal device lengths were significantly shorter (median 14 vs 16 mm).
- No significant difference in computed optimal device diameters was observed.
Conclusions:
- Virtual simulation with Sim&Size software shows potential to optimize PED sizing, particularly for device length.
- Further research is needed to determine the clinical impact of size modifications on patient outcomes.
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