title: Face, content, and construct validity of human placenta as a haptic training tool in neurointerventional surgery.
abstract: OBJECT The development of neurointerventional treatments of central nervous system disorders has resulted in the need for adequate training environments for novice interventionalists. Virtual simulators offer anatomical definition but lack adequate tactile feedback. Animal models, which provide more lifelike training, require an appropriate infrastructure base. The authors describe a training model for neurointerventional procedures using the human placenta (HP), which affords haptic training with significantly fewer resource requirements, and discuss its validation. METHODS Twelve HPs were prepared for simulated endovascular procedures. Training exercises performed by interventional neuroradiologists and novice fellows were placental angiography, stent placement, aneurysm coiling, and intravascular liquid embolic agent injection. RESULTS The endovascular training exercises proposed can be easily reproduced in the HP. Face, content, and construct validity were assessed by 6 neurointerventional radiologists and 6 novice fellows in interventional radiology. CONCLUSIONS The use of HP provides an inexpensive training model for the training of neurointerventionalists. Preliminary validation results show that this simulation model has face and content validity and has demonstrated construct validity for the interventions assessed in this study.
authors.affiliation: Department of Surgery, Federal University of Minas Gerais, Brazil;|Department of Neurosurgery, Neurosurgical Simulation Research and Training Centre, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec;|Surgical Simulation Centre, Mount Sinai Hospital, University of Toronto, Ontario, Canada; and.
authors.forename: Marcelo Magaldi
authors.initials: MM
authors.lastname: Ribeiro de Oliveira
authors.affiliation: Department of Surgery, Federal University of Minas Gerais, Brazil;
authors.forename: Arthur
authors.initials: A
authors.lastname: Nicolato
authors.affiliation: Department of Surgery, Federal University of Minas Gerais, Brazil;
authors.forename: Marcilea
authors.initials: M
authors.lastname: Santos
authors.affiliation: Department of Surgery, Federal University of Minas Gerais, Brazil;
authors.forename: Joao Victor
authors.initials: JV
authors.lastname: Godinho
authors.affiliation: Department of Surgery, Federal University of Minas Gerais, Brazil;
authors.forename: Rafael
authors.initials: R
authors.lastname: Brito
authors.affiliation: Department of Surgery, Federal University of Minas Gerais, Brazil;
authors.forename: Alexandre
authors.initials: A
authors.lastname: Alvarenga
authors.affiliation: Department of Surgery, Federal University of Minas Gerais, Brazil;
authors.forename: Ana Luiza Valle
authors.initials: AL
authors.lastname: Martins
authors.affiliation: Department of Surgery, Federal University of Minas Gerais, Brazil;
authors.forename: André
authors.initials: A
authors.lastname: Prosdocimi
authors.affiliation: Department of Surgery, Federal University of Minas Gerais, Brazil;
authors.forename: Felipe Padovani
authors.initials: FP
authors.lastname: Trivelato
authors.affiliation: Department of Neurosurgery, National Neurosciences Institute, King Fahad Medical City, Riyadh, Saudi Arabia.
authors.forename: Abdulrahman J
authors.initials: AJ
authors.lastname: Sabbagh
authors.affiliation: Department of Surgery, Federal University of Minas Gerais, Brazil;
authors.forename: Augusto Barbosa
authors.initials: AB
authors.lastname: Reis
authors.affiliation: Department of Neurosurgery, Neurosurgical Simulation Research and Training Centre, Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec;
authors.forename: Rolando Del
authors.initials: RD
authors.lastname: Maestro
mesh_terms: D000792:Angiography; D002561:Cerebrovascular Disorders / Q000601:surgery*; D002983:Clinical Competence; D004621:Embolization, Therapeutic; D057510:Endovascular Procedures / Q000193:education*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000601:surgery; D008953:Models, Anatomic; D019635:Neurosurgical Procedures / Q000193:education*; D010920:Placenta / Q000098:blood supply* / Q000000981:diagnostic imaging; D011247:Pregnancy; D015607:Stents
keywords: GDC = Guglielmi detachable coil; HP = human placenta; interventional neuroradiology; placenta; surgical simulation validation; training model; vascular disorders