scholarly journals Real-time in situ three-dimensional integral videography and surgical navigation using augmented reality: a pilot study

2013 ◽  
Vol 5 (2) ◽  
pp. 98-102 ◽  
Author(s):  
Hideyuki Suenaga ◽  
Huy Hoang Tran ◽  
Hongen Liao ◽  
Ken Masamune ◽  
Takeyoshi Dohi ◽  
...  
Author(s):  
Ilmawan Mustaqim

AbstrakAugmented Reality (AR) dapat didefinisikan sebagai sebuah teknologi yang mampu menggabungkan benda maya dua dimensi atau tiga dimensi ke dalam sebuah lingkungan yang nyata kemudian memunculkannya atau memproyeksikannya secara real time. AR dapat digunakan untuk membantu memvisualisasikan konsep abstrak untuk pemahaman dan struktur suatu model objek. Beberapa aplikasi AR dirancang untuk memberikan informasi yang lebih detail pada pengguna dari objek nyata. Media merupakan sebuah alat atau objek yang berfungsi sebagai penghubung antara penerima dan pengirim pesan.Media pembelajaran merupakan suatu alat perantara antara pendidik dengan peserta didik dalam pembelajaran yang mampu menghubungkan, memberi informasi dan menyalurkan pesan sehingga tercipta proses pembelajaran efektif dan efisien. Media pembelajaran mengakibatkan terjadinya sebuah komunikasi antara pendidik dan peserta didik dalam proses pembelajaran. Apabila dalam proses pembelajaran tidak menggunakan media maka tidak akan terjadi proses pembelajaran.Pemanfaatan media pendidikan menggunakan Augmented Reality dapat merangsang pola pikir peserta didik dalam berpikiran kritis terhadap sesuatu masalah dan kejadian yang ada pada keseharian, karena sifat dari media pendidikan adalah membantu peserta didik dalam proses pembelajaran dengan ada atau tidak adanya pendidik dalam proses pendidikan, sehingga pemanfaatan media pendidikan dengan augmented reality dapat secara langsung memberikan pembelajaran dimanapun dan kapanpun peserta didik ingin melaksanakan proses pembelajaran. Media Pembelajaran AR dapat memvisualisasikan konsep abstrak untuk pemahaman dan struktur suatu model objek memungkinkan AR sebagai media yang lebih efektif sesuai dengan tujuan dari media pembelajaran. Kata kunci:  augmented reality, media pembelajaran AbstractAugmented Reality (AR) can be defined as a technology that can combine virtual objects two-dimensional or three-dimensional into a real environment and then bring it or project it in real time. AR can be used to help visualize abstract concepts for the understanding and the structure of an object model. Some AR application designed to provide more detailed information on the user of the real object. Media is a tool or object that serves as a liaison between the recipient and the sender of the message.Learning Media is an intermediary tool between educators with learners in the learning that is able to connect, inform and distribute the messages so as to create an effective and efficient learning process. Instructional media resulting in a communication between educators and learners in the learning process. If the learning process does not use the media then there will be a learning process.Implementation media education using Augmented Reality can be stimulate the mindset of students in critical thinking about something issues and events that exist in everyday life, because of the nature of the medium of education is to help learners in the learning process with the presence or absence of teachers in the educational process, so that the use of the media augmented education with reality can directly provide learning wherever and whenever the learner wants to implement the learning process. Learning Media AR can visualize abstract concepts for the understandingand the structure of an object model enables the AR as a more effective media in accordance with the purpose of learning media. Keywords : augmented raeality, utilzation of instructional media


2012 ◽  
Vol 20 (25) ◽  
pp. 27304 ◽  
Author(s):  
Xiaoxue Jiao ◽  
Xing Zhao ◽  
Yong Yang ◽  
Zhiliang Fang ◽  
Xiaocong Yuan

2021 ◽  
Author(s):  
Yu-Ying Chu ◽  
Jia-Ruei Yang ◽  
Han Tsung Liao ◽  
Bo-Ru Lai

Abstract This study analyzed the outcomes of zygomatico-orbital fracture reconstruction using the real-time navigation system with intraoperative three-dimensional (3D) C-arm computed tomography (CT). Fifteen patients with zygomatico-orbital or isolated orbital/zygoma fractures were enrolled in this prospective cohort. For zygoma reduction, the displacement at five key sutures and the differences between preoperative and intraoperative CT images were compared. For orbital reconstruction, the bilateral orbital volume differences in the anterior, middle, and posterior angles over the medial transitional buttress were measured. Two patients required implant adjustment once after the intraoperative 3D C-arm assessment. On comparing the preoperative and postoperative findings for the zygoma, the average sum of displacement was 19.48 (range, 5.1–34.65) vs. ±1.96 (0–3.95) mm (P < 0.001) and the deviation index was 13.56 (10–24.35) vs. 2.44 (0.6–4.85) (P < 0.001). For the orbit, the mean preoperative to postoperative bilateral orbital volume difference was 3.93 (0.35–10.95) vs. 1.05 (0.12–3.61) mm3 (P <0.001). The mean difference in the bilateral angles at the transition buttress was significantly decreased postoperatively at the middle and posterior one-third. The surgical navigation system with the intraoperative 3D C-arm can effectively improve the accuracy of zygomatico-orbital fracture reconstruction and decrease implant adjustment times.


Author(s):  
V. Palma ◽  
R. Spallone ◽  
M. Vitali

<p><strong>Abstract.</strong> This paper presents the most recent developments in a project aimed to the documentation, storage and dissemination of the cultural heritage. The subject of the project are more than 70 Baroque atria in Turin, recognized by critics for their particular unitary vaulted systems Our research team is currently working on digitizing documents and studying ways to enhance and share these results through ICT. In particular, we want to explore possibilities for recognizing and tracing three-dimensional objects in augmented reality (AR) applications connected to the collected data. Recent developments in this field relate to the technology available on widespread mobile devices such as tablets and smartphones, allowing for real-time 3D scanning. Using software prototypes, we want to introduce some problems involved in integrating this technology into digital archives.</p>


2020 ◽  
Vol 21 (22) ◽  
pp. 8539
Author(s):  
Macoura Gadji ◽  
Shubha Mathur ◽  
Brigitte Bélanger ◽  
Jaganmohan Reddy Jangamreddy ◽  
Josée Lamoureux ◽  
...  

Mechanisms of recurrence in oligodendrogliomas are poorly understood. Recurrence might be driven by telomere dysfunction-mediated genomic instability. In a pilot study, we investigated ten patients with oligodendrogliomas at the time of diagnosis (first surgery) and after recurrence (second surgery) using three-dimensional nuclear telomere analysis performed with quantitative software TeloView® (Telo Genomics Corp, Toronto, Ontario, Canada). 1p/19q deletion status of each patient was determined by fluorescent in situ hybridization on touch preparation slides. We found that a very specific 3D telomeric profile was associated with two pathways of recurrence in oligodendrogliomas independent of their 1p/19q status: a first group of 8 patients displayed significantly different 3D telomere profiles between both surgeries (p < 0.0001). Their recurrence happened at a mean of 231.375 ± 117.42 days and a median time to progression (TTP) of 239 days, a period defined as short-term recurrence; and a second group of three patients displayed identical 3D telomere profiles between both surgery samples (p > 0.05). Their recurrence happened at a mean of 960.666 ± 86.19 days and a median TTP of 930 days, a period defined as long-term recurrence. Our results suggest a potential link between nuclear telomere architecture and telomere dysfunction with time to recurrence in oligodendrogliomas, independently of the 1p/19q status.


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