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An abstract of the study is provided below:
Patient Specific Case Rehearsals Using an Endovascular Simulator Prior toCarotid Artery Stenting
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Sean J Hislop, MD, Joseph H Hedrick, MD, Michael J Singh, MD, Jeffrey MRhodes, MD, Joseph P Hart, MD, Marcia Johansson, ACNP, and Karl A Illig, MD
Division of Vascular Surgery, at the Strong Heart and Vascular Center,University of Rochester Medical Center, NY
Objectives: To determine whether a patient's specific carotid anatomy canbe modeled using CTA on an endovascular simulator and whether preoperativepatient-specific case rehearsal accurately predicts operative experience.
Methods: Patients underwent CTA of the arch and carotid circulation.Simbionix (Cleveland, OH and Lod, Israel) used deidentified CTAs to createsimulation files (using PROcedure(TM) Rehersal Studio). The surgeon performedthe simulated case within 24 hours of the actual procedure. Likert surveys(strongly agree - strongly disagree) were completed assessing face validity,or the degree to which the simulation mimicked real life.
Results: Five patient-specific simulations were performed. The surgeons"strongly agreed" (median score 5/5) that the simulation improved theoperative flow, increased patient safety and efficiency of instrument use,assisted in selection of EPD, stent, diagnostic catheter and balloon,decreased overall operative and fluoroscopy time and the amount of contrastused, and that the operative and simulator outcomes were similar. They"agreed" (median score 4/5) that the simulation assisted with vessel accessand with wire selection. Face validity was excellent: surgeons "stronglyagreed" that the simulator was easy to use, realistically replicated reality,produced realistic imaging and tactile feedback (haptics), realisticallyreplicated patient arch, carotid and lesion anatomy and that it accuratelypredicted stent dimensions. All simulated EPD, stent, and balloon dimensionsmatched those used in the operating room. Subjective observations suggestedthat the simulation predicted difficulty with vessel cannulation but did notaccurately model post-stent deployment changes in bifurcation angulation.
Conclusions: These data indicate that patient-specific CTA-derived datacan be converted to an endovascular simulator with high face validity. Wesuggest that case rehearsal prior to an operation may be useful in theplanning and execution of carotid artery intervention.Contact: Inbal Mazor VP Marketing Simbionix mailto: [email protected] http://www.simbionix.com Tel: +1-216-229-2040
SOURCE Simbionix Ltd.
