scholarly journals Application of 3D-printing in the process of treating cerebral aneurysms affecting the intracranial arterial circle

2019 ◽  
Author(s):  
Biccari Elia ◽  
Castellani Alessandro ◽  
Costantini Giacomo ◽  
Fiacca Andrea ◽  
Piergentini Marco
Keyword(s):  
3D Printing ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Cerebral Aneurysms ◽  
Resonance Imaging ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
3D Sequence ◽  
Magnetic Resonance Imaging Mri ◽  
Do So

In this study we wanted to analyse how additive manufacturing could bring benefit to the treatment of intracranial aneurysms. To be able to do so we segmented Magnetic Resonance Imaging (MRI) images, specifically we used images from a Time-Of-Flight (TOF) 3D sequence. Once we obtained the virtual three-dimensional model from the diagnostic images, we proceeded to create a physical model through 3D-printing that was later used by the surgeon for a preoperative planning.

scholarly journals Three-dimensional printing applications in the neurosurgery: A pilot study

2021 ◽  
Vol 9 (B) ◽  
pp. 403-406
Author(s):  
Moneer Faraj ◽  
Bassam Arkawazi ◽  
Zaid Al-Attar
Keyword(s):  
Pilot Study ◽  
3D Printing ◽  
Wide Spectrum ◽  
Three Dimensional ◽  
Cerebral Aneurysms ◽  
Resonance Imaging ◽  
Three Dimensional Printing ◽  
Magnetic Resonance Imaging Mri ◽  
Dimensional Printing ◽  
Actual Size

BACKGROUND: Three-dimensional (3D) printing is an evolving technology that has been used recently in a wide spectrum of applications. AIM: The objective is to evaluate the application of 3D printing in various neurosurgical practice. PATIENTS AND METHODS: This pilot study was conducted in the neurosurgical hospital in Baghdad/Iraq between July 2018 and July 2019. An X, Y, and Z printer was used. The working team included neurosurgeons, biomedical engineers, and bio-technicians. The procedure starts with obtaining Magnetic resonance imaging (MRI) or computed tomography (CT) scan in particular protocols. The MRI, and CT or angiography images were imported into a 3D programmer for DICOM images called 3D slice where these files converted into a 3D pictures. Next, the neurosurgeon determines the cut section he needs to print. The final required object is exported to the X, Y, Z printing software where the technician starts to print it out. The final prototype delivered to the neurosurgeon. He uses it intraoperatively to have an apparent actual size 3D representation of the actual lesion with nearby healthy tissues to have a good idea about the case they manages. RESULTS: This pilot study was applied in three major projects: brain tumors (ten cases), cerebral aneurysms (nine cases), and spine surgery (14 cases). CONCLUSION: Three-dimensional printing has excellent advantages in neurosurgical practice. It can replace many other recent modalities. It enables the neurosurgeon works with more precision, less time-consuming, less cost, and less radiation exposure.

scholarly journals Methods building and printing 3D models historical architectural objects

2020 ◽  
Vol 75 ◽  
pp. 04016 ◽  
Author(s):  
Ihor Hevko ◽  
Olha Potapchuk ◽  
Iryna Lutsyk ◽  
Viktorya Yavorska ◽  
Viktoriia Tkachuk
Keyword(s):  
3D Printing ◽  
Complex Systems ◽  
Three Dimensional ◽  
3D Models ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Specialized Software ◽  
Bulk Data ◽  
Three Dimensional Models ◽  
Accuracy Speed

The authors present methods building and printing three-dimensional models for graphical reconstruction of historical architectural objects. Procedure sequence of the methods is exemplified through building the model of the Parochial Cathedral of St. Mary of the Perpetual Assistance of the 1950s. After analyzing and assessing the most popular specialized software means, the 3DS Max environment is chosen to build a three-dimensional model. Suggested software tools enable increased accuracy, speed and granularity of fixation of complex systems and expanded databases, providing efficient instruments to deal with bulk data and being relevant to new IT achievements. Sequence and content of operations for analytical and modeling cycles are substantiated. The cathedral model is built on the basis of archive photographs and drafts. The authors describe methods and the algorithm of procedures, principles of architectural and spacious modeling to recreate the architectural object. The three-dimensional model is built by applying a stereogram miniature of the destroyed Cathedral. Reconstruction of spacious configuration of the objects is based on parallax assessment of images. Stages of project implementation are determined. There are described methods of implementing modeling by 3DS Max tools and preparing the model for 3D printing in Cura.

scholarly journals Smartphone-assisted augmented reality technology for preoperative planning in spine surgery

2021 ◽  
Vol 18 (3) ◽  
pp. 94-99
Author(s):  
E. V. Kovalev ◽  
S. I. Kirilenko ◽  
A. N. Mazurenko ◽  
A. E. Filiustin ◽  
V. V. Dubrovsky
Keyword(s):  
Augmented Reality ◽  
Spine Surgery ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Smartphone Application ◽  
Target Area ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Augmented Reality Technology ◽  
Dimensional Object

Objective. To present a virtual three-dimensional model of pathologically altered segments of the patient’s spine and to analyze the results of its application when planning a surgical intervention in the smartphone-assisted augmented reality.Material and Methods. A three-dimensional modeling of the target area of the intended surgical site was performed based on computed tomography data of five patients with various spinal deformities. A smartphone application has been developed that allows displaying a three-dimensional object of the intended surgical site in the form of augmented reality.Results. The created virtual three-dimensional models were successfully used in five cases for preoperative planning and simulation training before surgery, which allowed to see in detail the anatomical features of the spine, the location of vascular structures when contrasting them, and to plan the direction of the screws. The potential of using augmented reality in clinical practice was demonstrated.Conclusion. The advantages of the smartphone-assisted augmented reality technology for preoperative planning in spine surgery are the simplicity of creating a computer model, the possibility for a surgeon to use a three-dimensional model for orientation in complex anatomical zone at any time of surgery, and the reduction in the risk of technical errors.

scholarly journals Virtual three-dimensional model for preoperative planning in a complex case of a double outlet right ventricle

2019 ◽  
Vol 12 (3) ◽  
pp. 295 ◽  
Author(s):  
Swati Garekar ◽  
Alpa Bharati ◽  
Firoza Kothari ◽  
Sachin Patil ◽  
Shyam Dhake ◽  
...  
Keyword(s):  
Right Ventricle ◽  
Preoperative Planning ◽  
Three Dimensional ◽  
Double Outlet Right Ventricle ◽  
Complex Case ◽  
Dimensional Model ◽  
Three Dimensional Model
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