scholarly journals Efficacy of a virtual reality–based basic and clinical fused curriculum for clinical education on the lumbar intervertebral disc

2021 ◽  
Vol 51 (2) ◽  
pp. E17
Author(s):  
Fangfang Qi ◽  
Yixiang Gan ◽  
Shengwen Wang ◽  
Yizhe Tie ◽  
Jiewen Chen ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Clinical Education ◽  
Structural Changes ◽  
Lumbar Disc ◽  
Three Dimensional ◽  
Patient Specific ◽  
Traditional Teaching ◽  
Traditional Group ◽  
Lumbar Intervertebral Disc ◽  
Surgical Preparation

OBJECTIVE Today, minimally invasive procedures have become mainstream surgical procedures. Percutaneous endoscopic transforaminal discectomy for lumbar disc herniation (LDH) requires profound knowledge of the laparoscopic lumbar anatomy. Immersive virtual reality (VR) provides three-dimensional patient-specific models to help in the process of preclinical surgical preparation. In this study, the authors investigated the efficacy of VR application in LDH for training orthopedic residents and postgraduates. METHODS VR images of the lumbar anatomy were created with immersive VR and mAnatomy software. The study was conducted among 60 residents and postgraduates. A questionnaire was developed to assess the effect of and satisfaction with this VR-based basic and clinical fused curriculum. The teaching effect was also evaluated through a postlecture test, and the results of the prelecture surgical examination were taken as baselines. RESULTS All participants in the VR group agreed that VR-based education is practical, attractive, and easy to operate, compared to traditional teaching, and promotes better understanding of the anatomical structures involved in LDH. Learners in the VR group achieved higher scores on an anatomical and clinical fusion test than learners in the traditional group (84.67 ± 14.56 vs 76.00 ± 16.10, p < 0.05). CONCLUSIONS An immersive VR-based basic and clinical fused curriculum can increase residents’ and postgraduates’ interest and support them in mastering the structural changes and complicated symptoms of LDH. However, a simplified operational process and more realistic haptics of the VR system are necessary for further surgical preparation and application.

scholarly journals A Virtual Reality System for Improved Image-based Planning of Complex Cardiac Procedures

2021 ◽  
Author(s):  
Shujie Deng ◽  
Gavin Wheeler ◽  
Nicolas Toussaint ◽  
Lindsay Munroe ◽  
Suryava Bhattacharya ◽  
...  
Keyword(s):  
Congenital Heart Disease ◽  
Virtual Reality ◽  
Heart Disease ◽  
Congenital Heart ◽  
Three Dimensional ◽  
Patient Specific ◽  
Two Dimensional ◽  
Virtual Reality System ◽  
Dimensional Echocardiography ◽  
Three Dimensional Echocardiography

The intricate nature of congenital heart disease requires understanding of complex, patient-specific three-dimensional dynamic anatomy of the heart, from imaging data such as three-dimensional echocardiography for successful outcomes from surgical and interventional procedures. Conventional clinical systems use flat screens and therefore display remains two-dimensional, which undermines the full understanding of the three-dimensional dynamic data. Additionally, control of three-dimensional visualisation with two-dimensional tools is often difficult, so used only by imaging specialists. In this paper we describe a virtual reality system for immersive surgery planning using dynamic three-dimensional echocardiography, which enables fast prototyping for visualisation such as volume rendering, multi-planar reformatting, flow visualisation, and advanced interaction such as three-dimensional cropping, windowing, measurement, haptic feedback, automatic image orientation, and multi-user interactions. The available features were evaluated by imaging and non-imaging clinicians, showing that the virtual reality system can help improve understanding and communication of the three-dimensional echocardiography imaging and potentially benefit congenital heart disease treatment.

scholarly journals Use of a three-dimensional printed anatomical model for tumor management in a pediatric patient

2020 ◽  
Vol 8 ◽  
pp. 2050313X2092760
Author(s):  
David Salazar ◽  
Trevor J. Huff ◽  
Justin Cramer ◽  
Lincoln Wong ◽  
Gabe Linke ◽  
...  
Keyword(s):  
Pediatric Patient ◽  
Clinical Education ◽  
Three Dimensional ◽  
Region Of Interest ◽  
Operation Time ◽  
Patient Specific ◽  
Anatomical Model ◽  
Three Dimensional Printing ◽  
Tumor Management ◽  
New Applications

The purpose of this study was to investigate the usage of an anatomical model to improve surgical planning of a complex schwannoma resection. As advancements in additive manufacturing continue to prosper, new applications of this valuable technology are being implemented in the medical field. One of the most recent applications has been in the development of patient-specific anatomical models for unique clinical education as well as for preoperative planning. In this case, a multidisciplinary team with expertise in research, three-dimensional printing, and medicine was formed to develop a three-dimensional printed model that could be used to help plan the reduction of a tumor from the cervical spine of a pediatric patient. Image segmentation and stereolithography creation were accomplished using Mimics and 3-matic, respectively. Models were developed on two different printer types to view different aspects of the region of interest. Reports from the operating surgeon indicated that the model was instrumental in the planning procedures of the operation and reducing operation time.

3-D Interactive Simulation of Magnetic Compass Adjustment Based on VRML

2010 ◽  
Vol 156-157 ◽  
pp. 211-216
Author(s):  
Jian Hua Wu ◽  
Hao Li ◽  
Hong Xiang Li
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
Magnetic Compass ◽  
Traditional Teaching ◽  
Interactive Simulation ◽  
Source Codes ◽  
Adjustment Procedure ◽  
Traditional Teaching Methods ◽  
Realization Process ◽  
Ship Operation

Magnetic compass adjustment is an indispensable work during ship operation, and its procedure can not be simulated in a real ship by traditional teaching methods, which has become a bottleneck to magnetic compass learners. The procedure of magnetic compass adjustment is simulated by virtual reality modeling language(VRML). Three-dimensional interactive demonstrations of magnetic compass’ structure and adjustment procedure are implemented. So learners will have a direct cognition to the adjustment procedure of heeling deviation, semicircular deviation and quadrantal deviation. The realization process of simulation in the virtual reality environment is described in detail and the relevant source codes are given.

A Novel Multilayered Annular Model to Predict Delamination in a Lumbar Intervertebral Disc

2009 ◽  
Author(s):  
Raghu N. Natarajan ◽  
Hannah J. Lundberg ◽  
Ted Oegema ◽  
Gunnar B. Andersson
Keyword(s):  
Disc Degeneration ◽  
Radial Direction ◽  
Structural Changes ◽  
Lumbar Disc ◽  
Single Layer ◽  
Element Model ◽  
Intervertebral Discs ◽  
Biomechanical Analysis ◽  
Lumbar Intervertebral Disc

Disc degeneration normally is accompanied by structural changes in the intervertebral discs and the end plates. Reduced level of water in the disc, osteophytes formation and geometrical changes in the end plates also accompany the disc degeneration process. Structural changes in the disc due to degeneration can be classified into radial, peripheral and circumferential tears. Radial tears normally extend from inner annulus region to the outer annulus in the radial direction. These may be due to the failure of annular fibers. Peripheral tears in the annulus normally occur near the junction between the annulus and end plates. These may be due to shear loads at the end plate-annulus junction. Circumferential tears can be observed in both anterior and posterior annulus. These circumferential tears may be due to separation of annular layers due to excess shear between layers and/or due to tensile strain between layers. Although the intrinsic mechanical behavior of the annulus fibrosus as a single layer has been studied, the response of the annulus in vivo does depend on its composite multilayer structure. Biomechanical analysis of the multilayered annulus will help to understand the initiation of delamination failure in the annulus. A finite element model of a lumbar disc with annulus consisting of several layers distributed along the radial direction of the disc with interface was developed to understand the delamination process of the disc under physiological loading modes. It is hypothesized that delamination starts at the inner annular layers near the end plates.

scholarly journals Patient-specific virtual reality technology for complex neurosurgical cases: illustrative cases

2021 ◽  
Vol 1 (23) ◽  
Author(s):  
Diana Anthony ◽  
Robert G. Louis ◽  
Yevgenia Shekhtman ◽  
Thomas Steineke ◽  
Anthony Frempong-Boadu ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Preoperative Planning ◽  
Surgical Navigation ◽  
Three Dimensional ◽  
Giant Aneurysm ◽  
Preoperative Imaging ◽  
Patient Specific ◽  
3D Navigation ◽  
Neurosurgical Treatment ◽  
3D Anatomy

BACKGROUND Virtual reality (VR) offers an interactive environment for visualizing the intimate three-dimensional (3D) relationship between a patient’s pathology and surrounding anatomy. The authors present a model for using personalized VR technology, applied across the neurosurgical treatment continuum from the initial consultation to preoperative surgical planning, then to intraoperative navigation, and finally to postoperative visits, for various tumor and vascular pathologies. OBSERVATIONS Five adult patients undergoing procedures for spinal cord cavernoma, clinoidal meningioma, anaplastic oligodendroglioma, giant aneurysm, and arteriovenous malformation were included. For each case, 360-degree VR (360°VR) environments developed using Surgical Theater were used for patient consultation, preoperative planning, and/or intraoperative 3D navigation. The custom 360°VR model was rendered from the patient’s preoperative imaging. For two cases, the plan changed after reviewing the patient’s 360°VR model from one based on conventional Digital Imaging and Communications in Medicine imaging. LESSONS Live 360° visualization with Surgical Theater in conjunction with surgical navigation helped validate the decisions made intraoperatively. The 360°VR models provided visualization to better understand the lesion’s 3D anatomy, as well as to plan and execute the safest patient-specific approach, rather than a less detailed, more standardized one. In all cases, preoperative planning using the patient’s 360°VR model had a significant impact on the surgical approach.

scholarly journals A Virtual Reality System for Improved Image-Based Planning of Complex Cardiac Procedures

2021 ◽  
Vol 7 (8) ◽  
pp. 151
Author(s):  
Shujie Deng ◽  
Gavin Wheeler ◽  
Nicolas Toussaint ◽  
Lindsay Munroe ◽  
Suryava Bhattacharya ◽  
...  
Keyword(s):  
Congenital Heart Disease ◽  
Virtual Reality ◽  
Heart Disease ◽  
Congenital Heart ◽  
Three Dimensional ◽  
Patient Specific ◽  
Two Dimensional ◽  
Virtual Reality System ◽  
Dimensional Echocardiography ◽  
Three Dimensional Echocardiography

The intricate nature of congenital heart disease requires understanding of the complex, patient-specific three-dimensional dynamic anatomy of the heart, from imaging data such as three-dimensional echocardiography for successful outcomes from surgical and interventional procedures. Conventional clinical systems use flat screens, and therefore, display remains two-dimensional, which undermines the full understanding of the three-dimensional dynamic data. Additionally, the control of three-dimensional visualisation with two-dimensional tools is often difficult, so used only by imaging specialists. In this paper, we describe a virtual reality system for immersive surgery planning using dynamic three-dimensional echocardiography, which enables fast prototyping for visualisation such as volume rendering, multiplanar reformatting, flow visualisation and advanced interaction such as three-dimensional cropping, windowing, measurement, haptic feedback, automatic image orientation and multiuser interactions. The available features were evaluated by imaging and nonimaging clinicians, showing that the virtual reality system can help improve the understanding and communication of three-dimensional echocardiography imaging and potentially benefit congenital heart disease treatment.

scholarly journals Investigation of Geometric Deformations of The Lumbar Disc During Axial Body Rotations

2021 ◽  
Author(s):  
Haoxiang Xu ◽  
Wangqiang Wen ◽  
Zepei Zhang ◽  
Jianqiang Bai ◽  
Bowen Kou ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Imaging System ◽  
Lumbar Disc ◽  
Three Dimensional ◽  
Lumbar Intervertebral Disc ◽  
Fluoroscopic Imaging ◽  
Extra Weight ◽  
The Right ◽  
Deformation Patterns

Abstract BackgroundQuantitative data on in vivo vertebral disc deformations are critical for enhancing our understanding of spinal pathology and improving the design of surgical materials. This study investigated in vivo lumbar intervertebral disc deformations during axial rotations under different load-bearing conditions.MethodsTwelve healthy subjects (7 males and 5 females) between the ages of 25 and 39 were recruited. Using a combination of a dual fluoroscopic imaging system (DFIS) and CT, the images of L3-5 segments scanned by CT were transformed into three-dimensional models, which matched the instantaneous images of the lumbar spine taken by a double fluorescent X-ray system during axial rotations to reproduce motions. Then, the kinematic data of the compression and shear deformations of the lumbar disc and the coupled bending of the vertebral body were obtained.ResultsRelative to the supine position, the average compression deformation caused by rotation is between +10% and -40%, and the shear deformation is between 17% and 50%. Under physiological weightbearing loads, different levels of lumbar discs exhibit similar deformation patterns, and the deformation patterns of left and right rotations are approximately symmetrical. The deformation patterns change significantly under a 10 kg load, with the exception of the L3-4 disc during the right rotation.ConclusionThe deformation of the lumbar disc was direction-specific and level-specific during axial rotations and was affected by extra weight. These data can provide new insights into the biomechanics of the lumbar spine and optimize the parameters of artificial lumbar spine devices.

Novel patient-specific 3D-virtual reality visualisation software (SpectoVR) for the planning of spine surgery: a case series of eight patients

2020 ◽  
Vol 6 (4) ◽  
pp. 215-219
Author(s):  
Davide Marco Croci ◽  
Raphael Guzman ◽  
Cordula Netzer ◽  
Luigi Mariani ◽  
Stefan Schaeren ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Spine Surgery ◽  
Total Disc Replacement ◽  
Three Dimensional ◽  
Case Series ◽  
Patient Specific ◽  
Adjacent Segment ◽  
Foraminal Stenosis ◽  
Holistic Understanding ◽  
Cord Injury

BackgroundComplex spine surgery requires a sound three-dimensional (3D) understanding of anatomy.ObjectiveHere, we report the preoperative use a of novel software (SpectoVR) that presents DICOM data as virtual 3D holograms.MethodsThe software SpectoVR uses patient-specific DICOM data to render the anatomy as a hologram that is then viewed with a virtual reality (VR) headset. The surgeons used SpectoVR to prepare for complex surgeries.ResultsEight patients with the following diagnosis were presurgically studied with SpectoVR: (1) ankylosing spondylitis with fixed kyphotic cervical deformity treated with osteotomy reduction and cervicothoracic reconstruction; (2) persistent cervical foraminal stenosis after total disc replacement; (3) atlantoaxial osteoarthritis treated with C1–2 Magerl fixation; (4) adjacent segment degeneration with foraminal stenosis L5–S1; (5) C2–C4 chordoma; (6) spinal cord injury with rotational thoracolumbar fracture; (7) complex lumbopelvic deformity after prior hemipelvectomy for sarcoma and (8) atlantoaxial osteoarthritis and basilar impression in a patient with congenital craniosynostosis. Whereas VR did not omit the need for viewing the spine in the multiplane reconstruction mode, the authors feel that SpectoVR contributed to a better holistic understanding of the anatomy. Furthermore, positioning the spine like in the OR empowered the mental preparation for the surgery.ConclusionIntegrating SpectoVR in daily presurgical planning is feasible and appears to enhance the surgeon’s awareness of the case.

scholarly journals Effectiveness of three-dimensional printed and virtual reality models in learning the morphology of craniovertebral junction deformities: a multicentre, randomised controlled study

BMJ Open ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. e036853
Author(s):  
Siyi Cai ◽  
Yu He ◽  
Haomin Cui ◽  
Xi Zhou ◽  
Dongsheng Zhou ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Clinical Education ◽  
Three Dimensional ◽  
Craniovertebral Junction ◽  
Teaching Hospitals ◽  
Controlled Study ◽  
Anatomical Landmarks ◽  
The Third ◽  
Randomised Controlled Study ◽  
Randomised Controlled

ObjectivesTo compare the effectiveness of three-dimensional printed (3DP), virtual reality (VR) and conventional normal physical (NP) models in clinical education regarding the morphology of craniovertebral junction (CVJ) deformities.DesignProspective, multicentre, randomised controlled study.SettingThree teaching hospitals in China.ParticipantsOne hundred and fifty-three participants in their first year of a 3-year medical residency programme.InterventionsAll participants were randomised to one of the three groups to learn the morphology of CVJ deformities using 3DP, VR or NP models.Primary outcome measuresThe objective outcomes were evaluated using three-level objective testing. In the first-level test, the participants were required to identify 15 anatomical landmarks on radiographs without CVJ deformities. In the second-level test, all participants were asked to identify the same 15 landmarks on radiographs showing classic CVJ deformities. In the third-level test, the participants were required to describe the key features of three classic cases of CVJ deformities depicted on radiographs. Each participant was also asked to answer four subjective questions to evaluate the importance and usefulness of the educational materials.ResultsIn the first-level test, the 3DP, VR and NP groups achieved similar correct rates. In the second-level test, the correct rate was higher in the 3DP group (82.1%±13.6%) than the VR and NP groups (76.9%±16.9% and 69.9%±20.0%, p=0.002). In the third-level test, the 3DP group achieved better correct rates regarding the description of key CVJ deformities features (66.2%±20.0%, p=0.049) than the other groups. The subjective tests showed that the 3DP model method was considered the most valuable approach for learning CVJ deformities.ConclusionsThe objective and subjective results show that the 3DP model is more effective teaching instrument than the NP model for learning the pathomorphology of CVJ deformities. The VR model also showed great efficacy, second to 3DP model, in improving participants’ understanding of CVJ deformities.

Application of virtual reality technology in Wushu education

2020 ◽  
pp. 002072092094058
Author(s):  
Wenbo Li ◽  
Liangbin Yang ◽  
Xinke Leng ◽  
Weikun Liu ◽  
Guobin Dai
Keyword(s):  
Virtual Reality ◽  
Teaching Method ◽  
Three Dimensional ◽  
Learning System ◽  
Traditional Teaching ◽  
Virtual Reality Technology ◽  
Three Dimensional Modeling ◽  
Huge Data ◽  
Data Volume ◽  
Basic Characteristics

With the theoretical and technical progress of Wushu education, the traditional teaching method of oral instruction and demonstration can no longer satisfy the needs of current Wushu education. To address this issue, the concept and basic characteristics of virtual reality technology were interpreted, and the effective path and challenges of applying virtual reality technology in Wushu education. The results of this study show that virtual reality technology contributes to the concrete presentation of implicit knowledge in Wushu, the construction of virtual scenes in Wushu education and the realization of a simulated self-learning system in Wushu. In the meanwhile, the application of virtual reality technology in Wushu education faces the challenges of high virtual reality equipment investment, three-dimensional modeling difficulties, huge data volume of Wushu movements and side effects after the experience of Wushu, etc.

Sign in / Sign up

Export Citation Format

Share Document