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https://www.readbyqxmd.com/read/27489617/3d-haptic-modelling-for-preoperative-planning-of-hepatic-resection-a-systematic-review
#1
REVIEW
David S C Soon, Michael P Chae, Charles H C Pilgrim, Warren Matthew Rozen, Robert T Spychal, David J Hunter-Smith
INTRODUCTION AND BACKGROUND: Three dimensional (3D) printing has gained popularity in the medical field because of increased research in the field of haptic 3D modeling. We review the role of 3D printing with specific reference to liver directed applications. METHODS: A literature search was performed using the scientific databases Medline and PubMed. We performed this in-line with the PRISMA [20] statement. We only included articles in English, available in full text, published about adults, about liver surgery and published between 2005 and 2015...
September 2016: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/27362738/content-validity-of-temporal-bone-models-printed-via-inexpensive-methods-and-materials
#2
T Michael Bone, Sarah E Mowry
HYPOTHESIS: Computed tomographic (CT) scans of the 3-D printed temporal bone models will be within 15% accuracy of the CT scans of the cadaveric temporal bones. BACKGROUND: Previous studies have evaluated the face validity of 3-D-printed temporal bone models designed to train otolaryngology residents. The purpose of the study was to determine the content validity of temporal bone models printed using inexpensive printers and materials. METHODS: Four cadaveric temporal bones were randomly selected and clinical temporal bone CT scans were obtained...
September 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27179613/hemodynamic-testing-of-patient-specific-mitral-valves-using-a-pulse-duplicator-a-clinical-application-of-three-dimensional-printing
#3
REVIEW
Azad Mashari, Ziyad Knio, Jelliffe Jeganathan, Mario Montealegre-Gallegos, Lu Yeh, Yannis Amador, Robina Matyal, Rabya Saraf, Kamal Khabbaz, Feroze Mahmood
OBJECTIVE: To evaluate the feasibility of obtaining hemodynamic metrics of echocardiographically derived 3-dimensional printed mitral valve models deployed in a pulse-duplicator chamber. DESIGN: Exploratory study. SETTING: Tertiary-care university hospital. PARTICIPANTS: Percutaneous MitraClip procedure patient. INTERVENTIONS: Three-dimensional R-wave gated, full-volume transesophageal echocardiography images were obtained after deployment of the MitraClip device...
October 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/26942360/using-three-dimensional-printing-to-fabricate-a-tubing-connector-for-dilation-and-evacuation
#4
Michael L Stitely, Helen Paterson
BACKGROUND: This is a proof-of-concept study to show that simple instrumentation problems encountered in surgery can be solved by fabricating devices using a three-dimensional printer. The device used in the study is a simple tubing connector fashioned to connect two segments of suction tubing used in a surgical procedure where no commercially available product for this use is available through our usual suppliers in New Zealand. MATERIALS AND METHODS: A cylindrical tubing connector was designed using three-dimensional printing design software...
February 2016: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/26929553/influence-of-kinesiologic-tape-on-post-operative-swelling-after-orthognathic-surgery
#5
U Tozzi, M Santagata, A Sellitto, G P Tartaro
INTRODUCTION: Orthognathic surgery involves making several osteotomies that lead to varying degrees of post-operative swelling. The use of KT may be beneficial for postoperative treatment after head and neck surgery, accelerating drainage of tissue reaction or haemorrhages. The goal of this study was to find out if the application of KT prevents or improves swelling, pain and trismus after orthognathic surgery, improving patients' postoperative quality of life. MATERIALS AND METHODS: In this double-blinded, randomized, control trial, 24 patients in whom bimaxillary orthognathic surgery was indicated, were included...
March 2016: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/26803324/rapid-prototyping-in-aortic-surgery
#6
Petros Bangeas, Grigorios Voulalas, Kiriakos Ktenidis
3D printing provides the sequential addition of material layers and, thus, the opportunity to print parts and components made of different materials with variable mechanical and physical properties. It helps us create 3D anatomical models for the better planning of surgical procedures when needed, since it can reveal any complex anatomical feature. Images of abdominal aortic aneurysms received by computed tomographic angiography were converted into 3D images using a Google SketchUp free software and saved in stereolithography format...
April 2016: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/26375979/a-novel-temporal-bone-simulation-model-using-3d-printing-techniques
#7
Sarah E Mowry, Hachem Jammal, Charles Myer, Clementino Arturo Solares, Paul Weinberger
HYPOTHESIS: An inexpensive temporal bone model for use in a temporal bone dissection laboratory setting can be made using a commercially available, consumer-grade 3D printer. BACKGROUND: Several models for a simulated temporal bone have been described but use commercial-grade printers and materials to produce these models. The goal of this project was to produce a plastic simulated temporal bone on an inexpensive 3D printer that recreates the visual and haptic experience associated with drilling a human temporal bone...
September 2015: Otology & Neurotology
https://www.readbyqxmd.com/read/25982877/factors-affecting-dimensional-accuracy-of-3-d-printed-anatomical-structures-derived-from-ct-data
#8
Kent M Ogden, Can Aslan, Nathaniel Ordway, Dalanda Diallo, Gwen Tillapaugh-Fay, Pranav Soman
Additive manufacturing and bio-printing, with the potential for direct fabrication of complex patient-specific anatomies derived from medical scan data, are having an ever-increasing impact on the practice of medicine. Anatomic structures are typically derived from CT or MRI scans, and there are multiple steps in the model derivation process that influence the geometric accuracy of the printed constructs. In this work, we compare the dimensional accuracy of 3-D printed constructs of an L1 vertebra derived from CT data for an ex vivo cadaver T-L spine with the original vertebra...
December 2015: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/25862767/three-dimensional-printing-of-anatomically-accurate-patient-specific-intracranial-aneurysm-models
#9
Jeff R Anderson, Walker L Thompson, Abdulaziz K Alkattan, Orlando Diaz, Richard Klucznik, Yi J Zhang, Gavin W Britz, Robert G Grossman, Christof Karmonik
OBJECTIVE: To develop and validate a method for creating realistic, patient specific replicas of cerebral aneurysms by means of fused deposition modeling. METHODS: The luminal boundaries of 10 cerebral aneurysms, together with adjacent proximal and distal sections of the parent artery, were segmented based on DSA images, and corresponding virtual three-dimensional (3D) surface reconstructions were created. From these, polylactic acid and MakerBot Flexible Filament replicas of each aneurysm were created by means of fused deposition modeling...
May 2016: Journal of Neurointerventional Surgery
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