Creating an Optimal 3D Printed Model for Temporal Bone Dissection Training

2017 ◽  
Vol 126 (7) ◽  
pp. 530-536 ◽  
Author(s):  
Kuniyuki Takahashi ◽  
Yuka Morita ◽  
Shinsuke Ohshima ◽  
Shuji Izumi ◽  
Yamato Kubota ◽  
...  
Keyword(s):  
Temporal Bone ◽  
Model Comparison ◽  
3D Models ◽  
Ct Images ◽  
Tactile Sensation ◽  
Powder Bed ◽  
Bone Model ◽  
Training Tool ◽  
3 Dimensional ◽  
3D Printed

Objective: Making a 3-dimensional (3D) temporal bone model is simple using a plaster powder bed and an inkjet printer. However, it is difficult to reproduce air-containing spaces and precise middle ear structures. The objective of this study was to overcome these problems and create a temporal bone model that would be useful both as a training tool and for preoperative simulation. Methods: Drainage holes were made to remove excess materials from air-containing spaces, ossicle ligaments were manually changed to bony structures, and small and/or soft tissue structures were colored differently while designing the 3D models. The outcomes were evaluated by 3 procedures: macroscopic and endoscopic inspection of the model, comparison of computed tomography (CT) images of the model to the original CT, and assessment of tactile sensation and reproducibility by 20 surgeons performing surgery on the model. Results: Macroscopic and endoscopic inspection, CT images, and assessment by surgeons were in agreement in terms of reproducibility of model structures. Most structures could be reproduced, but the stapes, tympanic sinus, and mastoid air cells were unsatisfactory. Perioperative tactile sensation of the model was excellent. Conclusions: Although this model still does not embody perfect reproducibility, it proved sufficiently practical for use in surgical training.

Simulation of Cerebrospinal Fluid Leak Repair Using a 3-Dimensional Printed Model

2021 ◽  
pp. 194589242110035
Author(s):  
Muhamed A. Masalha ◽  
Kyle K. VanKoevering ◽  
Omar S. Latif ◽  
Allison R. Powell ◽  
Ashley Zhang ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Great Part ◽  
Cerebrospinal Fluid Leak ◽  
Csf Leak ◽  
Clinical Environment ◽  
Training Tool ◽  
3 Dimensional ◽  
Clinical Scenarios ◽  
Before And After ◽  
3D Printed

Background Acquiring proficiency for the repair of a cerebrospinal fluid (CSF) leak is challenging in great part due to its relative rarity, which offers a finite number of training opportunities. Objective The purpose of this study was to evaluates the use of a 3-dimensional (3D) printed, anatomically accurate model to simulate CSF leak closure. Methods Volunteer participants completed two simulation sessions. Questionnaires to assess their professional qualifications and a standardized 5-point Likert scale to estimate the level of confidence, were completed before and after each session. Participants were also queried on the overall educational utility of the simulation. Results Thirteen otolaryngologists and 11 neurosurgeons, met the inclusion criteria. A successful repair of the CSF leak was achieved by 20/24 (83.33%), and 24/24 (100%) during the first and second simulation sessions respectively (average time 04:04 ± 1.39 and 02:10 ± 01:11). Time-to-close-the-CSF-leak during the second session was significantly shorter than the first (p < 0.001). Confidence scores increased across the training sessions (3.3 ± 1.0, before the simulation, 3.7 ± 0.6 after the first simulation, and 4.2 ± 0.4 after the second simulation; p < 0.001). All participants reported an increase in confidence and believed that the model represented a valuable training tool. Conclusions Despite significant differences with varying clinical scenarios, 3D printed models for cerebrospinal leak repair offer a feasible simulation for the training of residents and novice surgeons outside the constrictions of a clinical environment.

Optimization of 3D Print Material for the Recreation of Patient-Specific Temporal Bone Models

2018 ◽  
Vol 127 (5) ◽  
pp. 338-343 ◽  
Author(s):  
Max Haffner ◽  
Austin Quinn ◽  
Tsung-yen Hsieh ◽  
E. Bradley Strong ◽  
Toby Steele
Keyword(s):  
Temporal Bone ◽  
Haptic Feedback ◽  
Acrylonitrile Butadiene Styrene ◽  
3D Models ◽  
Patient Specific ◽  
3D Print ◽  
Print Material ◽  
Unique Material ◽  
3D Printed ◽  
Study Participants

Objective: Identify the 3D printed material that most accurately recreates the visual, tactile, and kinesthetic properties of human temporal bone Subjects and Methods: Fifteen study participants with an average of 3.6 years of postgraduate training and 56.5 temporal bone (TB) procedures participated. Each participant performed a mastoidectomy on human cadaveric TB and five 3D printed TBs of different materials. After drilling each unique material, participants completed surveys to assess each model’s appearance and physical likeness on a Likert scale from 0 to 10 (0 = poorly representative, 10 = completely life-like). The 3D models were acquired by computed tomography (CT) imaging and segmented using 3D Slicer software. Results: Polyethylene terephthalate (PETG) had the highest average survey response for haptic feedback (HF) and appearance, scoring 8.3 (SD = 1.7) and 7.6 (SD = 1.5), respectively. The remaining plastics scored as follows for HF and appearance: polylactic acid (PLA) averaged 7.4 and 7.6, acrylonitrile butadiene styrene (ABS) 7.1 and 7.2, polycarbonate (PC) 7.4 and 3.9, and nylon 5.6 and 6.7. Conclusion: A PETG 3D printed temporal bone models performed the best for realistic appearance and HF as compared with PLA, ABS, PC, and nylon. The PLA and ABS were reliable alternatives that also performed well with both measures.

Modifications to a 3D-printed temporal bone model for augmented stapes fixation surgery teaching

2017 ◽  
Vol 274 (7) ◽  
pp. 2733-2739 ◽  
Author(s):  
Yann Nguyen ◽  
Elisabeth Mamelle ◽  
Daniele De Seta ◽  
Olivier Sterkers ◽  
Daniele Bernardeschi ◽  
...  
Keyword(s):  
Temporal Bone ◽  
Bone Model ◽  
Stapes Fixation ◽  
3D Printed

scholarly journals A LITHOPHANE MODEL MAKING PROCESS TO 3D PRINTERS

2020 ◽  
Author(s):  
Siddavatam Rammohan Reddy
Keyword(s):  
Melting Point ◽  
Acrylonitrile Butadiene Styrene ◽  
3D Models ◽  
3D Printer ◽  
Layer By Layer ◽  
3 Dimensional ◽  
3D Objects ◽  
3D Printers ◽  
3D Printed ◽  
Butadiene Styrene

This paper focuses on to convert photographs into embossed 3D models and then bring them to life using a 3D printer. A Lithophane is a 3-dimensional generation of a 2-dimensional image and 3D representation of a photo can be seen only when it is illuminated from behind. Turning images into 3D objects give us more feeling and literally adds a new dimension. The lithophane can be manufactured by the way of an automated additive manufacturing process, such as 3-D printing. lithophanes are a simple way to enhance your favourite photos. 3D printed photos also known as 3D Printed lithophanes, are an extremely unique and creative application. The process adopted in lithophane is FDM technology, in which different the materials like PLA (polylactic acid), ABS (acrylonitrile butadiene styrene), etc. By heating the filament material to its melting point and it is deposited layer by layer. Combination of many layers will give us a final 3D Printed model.

Comparison of Materials Used for 3D-Printing Temporal Bone Models to Simulate Surgical Dissection

2020 ◽  
Vol 129 (12) ◽  
pp. 1168-1173 ◽  
Author(s):  
Alexandra McMillan ◽  
Armine Kocharyan ◽  
Simone E. Dekker ◽  
Elias George Kikano ◽  
Anisha Garg ◽  
...  
Keyword(s):  
3D Printing ◽  
Temporal Bone ◽  
Surgical Training ◽  
Fused Deposition Modeling ◽  
Acrylonitrile Butadiene Styrene ◽  
Acrylic Resin ◽  
Training Tool ◽  
Fused Deposition ◽  
Cortical Mastoidectomy ◽  
3D Printed

Objective: To identify 3D-printed temporal bone (TB) models that most accurately recreate cortical mastoidectomy for use as a training tool by comparison of different materials and fabrication methods. Background: There are several different printers and materials available to create 3D-printed TB models for surgical planning and trainee education. Current reports using Acrylonitrile Butadiene Styrene (ABS) plastic generated via fused deposition modeling (FDM) have validated the capacity for 3D-printed models to serve as accurate surgical simulators. Here, a head-to-head comparison of models produced using different materials and fabrication processes was performed to identify superior models for application in skull base surgical training. Methods: High-resolution CT scans of normal TBs were used to create stereolithography files with image conversion for application in 3D-printing. The 3D-printed models were constructed using five different materials and four printers, including ABS printed on a MakerBot 2x printer, photopolymerizable polymer (Photo) using the Objet 350 Connex3 Printer, polycarbonate (PC) using the FDM-Fortus 400 mc printer, and two types of photocrosslinkable acrylic resin, white and blue (FLW and FLB, respectively), using the Formlabs Form 2 stereolithography printer. Printed TBs were drilled to assess the haptic experience and recreation of TB anatomy with comparison to the current paradigm of ABS. Results: Surgical drilling demonstrated that FLW models created by FDM as well as PC and Photo models generated using photopolymerization more closely recreated cortical mastoidectomy compared to ABS models. ABS generated odor and did not represent the anatomy accurately. Blue resin performed poorly in simulation, likely due to its dark color and translucent appearance. Conclusions: PC, Photo, and FLW models best replicated surgical drilling and anatomy as compared to ABS and FLB models. These prototypes are reliable simulators for surgical training.

Generation of a 3D Printed Temporal Bone Model with Internal Fidelity and Validation of the Mechanical Construct

2013 ◽  
Vol 150 (3) ◽  
pp. 448-454 ◽  
Author(s):  
Jordan B. Hochman ◽  
Jay Kraut ◽  
Katrice Kazmerik ◽  
Bertram J. Unger
Keyword(s):  
Temporal Bone ◽  
Bone Model ◽  
3D Printed

scholarly journals Virtual, 3-Dimensional Temporal Bone Model and Its Educational Value for Neurosurgical Trainees

2019 ◽  
Vol 122 ◽  
pp. e1412-e1415 ◽  
Author(s):  
Peter J. Morone ◽  
Kushal J. Shah ◽  
Benjamin K. Hendricks ◽  
Aaron A. Cohen-Gadol
Keyword(s):  
Temporal Bone ◽  
Educational Value ◽  
Bone Model ◽  
3 Dimensional

A simple and convenient 3D printed temporal bone model for drilling simulating surgery

2021 ◽  
pp. 1-4
Author(s):  
Zhi-Ming Yuan ◽  
Xiao-Dong Zhang ◽  
Shou-Wu Wu ◽  
Zhong-Zhu Nian ◽  
Jun Liao ◽  
...  
Keyword(s):  
Temporal Bone ◽  
Bone Model ◽  
3D Printed

RELIABILITY AND VALIDITY STUDY OF A MEASUREMENT METHOD FOR THE GLENOID VERSION BY A 3-DIMENSIONAL BONE MODEL FROM 3.0 TESLA MRI

2016 ◽  
Vol 19 (03) ◽  
pp. 1650012 ◽  
Author(s):  
Yohei Kanno ◽  
Hajime Toda ◽  
Tsutomu Horiuchi ◽  
Katsuaki Nagai ◽  
Masaki Katayose
Keyword(s):  
Intraclass Correlation ◽  
Reliability And Validity ◽  
Ct Images ◽  
Imaging Method ◽  
3D Ct ◽  
3D Mri ◽  
Glenoid Version ◽  
Bone Model ◽  
3 Dimensional ◽  
Ct And Mri

Objective: The authors investigated reliability and validity of 3D-MRI bone model of scapula by comparing the Glenoid versions that were measured each in 3D-CT images and 3D-MRI images. Materials and Methods: The scapula extraction DICOM data of MRI and CT was made to extract only a scapular domain. The scapula bone model was made with the scapula extraction DICOM data of MRI and CT. Glenoid version was measured on the scapula bone model. The mean and standard deviation of the Glenoid version was calculated by each imaging method (CT and MRI). Intraclass reliability of each imaging method (CT and MRI) and agreement between the two methods were evaluated. This was accomplished by calculating two separate measures of agreement: the intraclass correlation coefficient (ICC) and the Bland–Altman analysis. Results: Glenoid version measured from the 3D-CT images averaged [Formula: see text]0.679[Formula: see text][Formula: see text][Formula: see text]3.797, with an ICC of 0.975. Glenoid version measured from the 3D-MRI images averaged [Formula: see text]0.801[Formula: see text][Formula: see text][Formula: see text]3.682, with an ICC of 0.980. Conclusions: 3D-MRI bone model of scapula evaluated the reliability and the validity. 3D-MRI bone model of scapula was found to measure like 3D-CT bone model of scapula.

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