Architecture
Emmanuel Tsekleves, Rachel Cooper in Design for Health, 2017
It is not only the design solutions that are changing in the context of healthcare design. The design process as traditionally known has changed considerably in the last decade and more so in the last five years, since the run up for BIM adoption on complex projects (Sebastian, 2011). The possibility of creating a digital model that contains information from the different design, engineering and management disciplines is enhancing our understanding of the interrelationship amongst design solutions. It is fair to say that the engineering disciplines are benefiting more. That is because it is easier to simulate the performance of the physical aspects of the building and its inhabitants than the psychological ones. However, we are not far from a time in which digital models will incorporate intelligent hard and soft information about building occupants.
Composite Materials for Oral and Craniofacial Repair or Regeneration
Vincenzo Guarino, Marco Antonio Alvarez-Pérez in Current Advances in Oral and Craniofacial Tissue Engineering, 2020
Over the past decade, a wide range of degradable, partially degradable and non-degradable polymer based composites has been investigated to repair or to regenerate hard tissues in oral and craniofacial surgery. These composites can be prepared in the laboratory and then implanted or they can be polymerized in situ. For the former approach, the main advancements arise from Additive Manufacturing (AM) technologies, also known as 3D printing, while injectable or spreadable nanocomposites represent the main achievements for in situ forming of prostheses, restorative materials and scaffolds for Tissue Engineering (’l'E). Self-shape adaptation of injectable or spreadable nanocomposites, and the overall reduced time from diagnosis to implantation, is the most convenient approach for dental and cranial bone tissues repair or regeneration. However, several drawbacks such as heat and shrinkage due to the polymerization process and release of unreacted monomers, limit the in situ forming approach. On the other hand, patient tailored prostheses and scaffolds, designed and manufactured in the laboratory, involve the use of the Reverse Engineering (RE) applied to organs and hard tissues for defining, via Computer Aided Design (CAD), the customized prosthesis or scaffold. 3D imaging clinical tools like X-ray CT, MRI and Laser scanners provide the main data source for developing the digital model. Implant designing, composite materials and engineering technologies, as well as future trends in the field, will be focused.
Virtual Surgical Planning for Left-Ventricular Myectomy in Hypertrophic Cardiomyopathy
Srilakshmi M. Adhyapak, V. Rao Parachuri in Hypertrophic Cardiomyopathy, 2020
Joshua Hermsen et al. [10] have studied the applications of 3D printing technology for surgical myectomy in HCM. 3D prints have been most commonly used as tangible adjuncts to the imaging modalities from which they are derived. These modalities are yet to attain a performable competence for clinical use. This study describes a process used for two patients undergoing septal myectomy for HCM. In Hermsen’s study, the surgeon was provided with two tools: an interactive digital model and a physical 3D print. The digital model was a by-product of the segmentation process necessary to create a 3D print from computed tomographic scan data, and was infinitely manipulable. The heart could be sectioned in any plane, and the image could be rotated on the screen in all axes. The ability to section, rotate, and view a 3D representation of the heart and ventricular septum in nontraditional planes as well as in sagittal, coronal, and axial planes was subjectively useful according to the assessment tool. The surgeon was also able to perform a virtual myectomy with the segmentation software. This was actually less useful than anticipated, however, because the graphical user interface for this function was not surgically intuitive. In addition, the volume of the digital resection was not calculable, so a comparison could not be made with the resection volumes from the 3D print and the patient.
Developing a schedule integrated automated safety planning tool for residential construction projects
Published in International Journal of Occupational Safety and Ergonomics, 2023
Prasanna Venkatesan Ramani, Talanti Ravi Arun Kumar
Kim and Choi [24] automated the planning and designing of scaffolding systems using BIM. The automation was carried with the help of rule-based modelling by inserting the necessary rules related to the geometry of the scaffolds in the digital model. Schwabe et al. [7] developed a rule-based model checking for the construction site layout through BIM. The model checks whether the construction site layout is in line with the rule or not arranged in the desired geometry. The rules are inserted into the BIM model using semantic-based modelling, and the rules will check the model and desired corrections will be given as a suggestion in the BIM to make the model perfect according to the rules.
The transparent minds: methods of creation of 3D digital models from patient specific data
Published in Journal of Visual Communication in Medicine, 2022
Hana Pokojna, Caroline Erolin, Christopher Henstridge
The aim of this paper was to present a detailed workflow of creating 3D digital models from raw patient data that can be further used in education. This method is intended to add to the advancements in technology which help teaching anatomy through websites, animations, and 3D models. The creation of 3D digital models consisted of data segmentation, 3D digital model clean-up, uploading to an interactive website, and post-processing the resulting 3D models. Ways to make the process cost and time-effective were suggested by using open-source software tools. We also focussed on the advantages and limitations of the cross-platform method.
An integrated haptic-enabled virtual reality system for orthognathic surgery planning
Published in Computer Methods in Biomechanics and Biomedical Engineering, 2019
Jorge Zaragoza-Siqueiros, Hugo I. Medellin-Castillo, Héctor de la Garza-Camargo, Theodore Lim, James M. Ritchie
In the traditional model surgery procedure, each surgeon was asked to get the patient's dental cast models and mount them on an articulator, as shown in Figure 10. Reference lines were then indicated on each model before cutting and repositioning the casts. On the other hand, the virtual model surgery was carried out on the patient’s digital model in OSSys. The haptic device was used by the surgeons to feel and mark on the virtual model the anatomical points that define the cutting planes. The repositioning of the models was also carried out using the haptic device. Figure 11 shows the segmented digital dental models.
Related Knowledge Centers
- 3D Printing
- Holography
- 3D Computer Graphics
- 3D Scanning
- Poser
- Magnetic Resonance Imaging
- CT Scan
- Semantic Web
- Knowledge Representation & Reasoning
- Computer Facial Animation