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Obtaining Informed Consent Using Patient Specific 3D Printing Cerebral Aneurysm Model

Journal of Korean Neurosurgical Society 2019년 62권 4호 p.398 ~ 404
 ( Kim Pil-Soo ) - Pusan National University School of Medicine Pusan National University Hospital Department of Neurosurgery

 ( Choi Chang-Hwa ) - Pusan National University School of Medicine Pusan National University Hospital Department of Neurosurgery
 ( Han In-Ho ) - Pusan National University School of Medicine Pusan National University Hospital Department of Neurosurgery
 ( Lee Jung-Hwan ) - Pusan National University School of Medicine Pusan National University Hospital Department of Neurosurgery
 ( Choi Hyuk-Jin ) - Pusan National University School of Medicine Pusan National University Hospital Department of Neurosurgery
 ( Lee Jae-Il ) - Pusan National University School of Medicine Pusan National University Hospital Department of Neurosurgery

Abstract


Objective : Recently, three-dimensional (3D) printed models of the intracranial vascular have served as useful tools in simulation and training for cerebral aneurysm clipping surgery. Precise and realistic 3D printed aneurysm models may improve patients’ understanding of the 3D cerebral aneurysm structure. Therefore, we created patient-specific 3D printed aneurysm models as an educational and clinical tool for patients undergoing aneurysm clipping surgery. Herein, we describe how these 3D models can be created and the effects of applying them for patient education purpose.

Methods : Twenty patients with unruptured intracranial aneurysm were randomly divided into two groups. We explained and received informed consent from patients in whom 3D printed models-(group I) or computed tomography angiography-(group II) was used to explain aneurysm clipping surgery. The 3D printed intracranial aneurysm models were created based on time-offlight magnetic resonance angiography using a 3D printer with acrylonitrile-butadiene-styrene resin as the model material. After describing the model to the patients, they completed a questionnaire about their understanding and satisfaction with aneurysm clipping surgery.

Results : The 3D printed models were successfully made, and they precisely replicated the actual intracranial aneurysm structure of the corresponding patients. The use of the 3D model was associated with a higher understanding and satisfaction of preoperative patient education and consultation. On a 5-point Likert scale, the average level of understanding was scored as 4.7 (range, 3.0?5.0) in group I. In group II, the average response was 2.5 (range, 2.0?3.0).

Conclusion : The 3D printed models were accurate and useful for understanding the intracranial aneurysm structure. In this study, 3D printed intracranial aneurysm models were proven to be helpful in preoperative patient consultation.

키워드

Informed consent; Printing, Three-dimensional; Intracranial aneurysm
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