"Virtual stent" - clinical evaluation and user experience of on-the-fly stent simulation in treatment of cerebral aneurysms
Lücking H, Birkhold A, Hölter P, Lang S, Gölitz P, Schmidt M, Mrochen A, Brandner S, Dörfler A (2021)
Publication Type: Journal article
Publication year: 2021
Journal
DOI: 10.1177/15910199211053131
Abstract
Background Predicting final stent position can be challenging when treating cerebral aneurysms. Third-Party software proved helpful in selecting proper stents in treatment planning. Recent angiographic systems provide basic stent simulation capabilities integrated in the post-processing software to simulate stent position. Goal of this analysis was to evaluate the simulation process and correlation with definite stent position. Materials and Methods Thirty-three datasets with fusiform (n = 10) and saccular (n = 23) aneurysms, treated with stent or flow-diverter, were processed. A "virtual stent" of the same (nominal) size was simulated and its position was compared to the treatment result. Simulated length was rated in five grades (too short, shorter, equal, longer, too long), with regard to side-branches, anchoring zone etc. Simulation quality (centerline recognition/adherence to vessel margins) was rated in three grades (no, minor or major corrections required). Results Simulation was successful in 32/33 cases (97%), with one abortive attempt (3%). In 27/33 simulations (82%), there was no need for centerline refinement. Minor corrections were necessary in four and major corrections in two cases. Simulated nominal length was rated "equal" in 14/33 (42%) cases and "shorter" or "longer" - but within acceptable range - in each 9/33 (27%) cases. Conclusion Basic stent simulation tools available with genuine angiographic workplace software can provide good simulation capabilities without need for third-party equipment. They can facilitate treatment planning and help to avoid shortage of devices. Yet, lack of calculation of foreshortening in large vessel diameters leaves the user to rely on their experience to account for device-specific properties.
Authors with CRIS profile
Hannes Lücking
Department of Neuroradiology
Philip Hölter
Department of Neuroradiology
Stefan Lang
Neuroradiologisches Institut
Philipp Gölitz
Medizinische Fakultät
Manuel Schmidt
Department of Neuroradiology
Anne Mrochen
Department of Neurology
Sebastian Brandner
Medizinische Fakultät
Arnd Dörfler
Department of Neuroradiology
Involved external institutions
Germany (DE)How to cite
APA:
Lücking, H., Birkhold, A., Hölter, P., Lang, S., Gölitz, P., Schmidt, M.,... Dörfler, A. (2021). "Virtual stent" - clinical evaluation and user experience of on-the-fly stent simulation in treatment of cerebral aneurysms. Interventional Neuroradiology. https://dx.doi.org/10.1177/15910199211053131
MLA:
Lücking, Hannes, et al. ""Virtual stent" - clinical evaluation and user experience of on-the-fly stent simulation in treatment of cerebral aneurysms." Interventional Neuroradiology (2021).
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