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.

Ankylosis and pseudoankylosis of the temporomandibular joint in 10 dogs (1993–2015)

2016 ◽  
Vol 29 (05) ◽  
pp. 409-415 ◽  
Author(s):  
Peter Strøm ◽  
Boaz Arzi ◽  
Derek Cissell ◽  
Frank Verstraete
Keyword(s):  
Surgical Treatment ◽  
Range Of Motion ◽  
Temporomandibular Joint ◽  
Three Dimensional ◽  
Case Series ◽  
Patient Specific ◽  
Three Dimensional Printing ◽  
Temporomandibular Joint Ankylosis ◽  
Dimensional Printing ◽  
Joint Ankylosis

SummaryObjective: To describe the clinical features and results of treatment of true ankylosis and pseudoankylosis of the temporomandibular joint in dogs.Methods: This study was a retrospective case series. Ten client-owned dogs that were presented for inability to open the mouth or a severely decreased range of motion of the temporomandibular joint were included. Information on the surgical procedures performed and the perioperative complications were documented. Three-dimensional printing of the skull was performed in four dogs.Results: Two dogs were diagnosed with temporomandibular joint ankylosis and seven dogs with pseudoankylosis. One dog had evidence of combined temporomandibular joint ankylosis and pseudoankylosis. Of the seven dogs with pseudoankylosis, six had an osseous fusion involving the zygomatic arch and mandible. Surgical treatment was performed in nine dogs and a revision surgery was needed in one dog. Follow-up ranged from five months to eight years (mean: 48.6 months). Eight out of nine dogs that were treated surgically regained the ability to open their mouth, but six dogs never regained a fully normal temporomandibular joint range of motion.Clinical significance: Temporomandibular joint ankylosis and pseudoankylosis are uncommon in the dog. Surgical treatment for temporomandibular joint ankylosis or pseudoankylosis in dogs is a successful option and carries a prognosis dependent on patient-specific abnormalities. Computed tomography complemented with three- dimensional printing is valuable for understanding the extent of abnormalities and for preoperative planning.Supplementary material for this paper is available online at http://dx.doi.org/10.3415/VCOT-15-11-0189.

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 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.

Feasibility and potential of three-dimensional printing in laryngotracheal stenosis

2019 ◽  
Vol 133 (06) ◽  
pp. 530-534 ◽  
Author(s):  
Z Richard ◽  
E Jackson ◽  
J P Jung ◽  
S P Kanotra
Keyword(s):  
Surgical Simulation ◽  
Tertiary Care ◽  
Three Dimensional ◽  
Case Series ◽  
Patient Specific ◽  
Tracheal Resection ◽  
Laryngotracheal Stenosis ◽  
Three Dimensional Printing ◽  
Clinical Scenarios ◽  
Dimensional Printing

AbstractBackgroundThe use of three-dimensional printing has been rapidly expanding over the last several decades. Virtual surgical three-dimensional simulation and planning has been shown to increase efficiency and accuracy in various clinical scenarios.ObjectivesTo report the feasibility of three-dimensional printing in paediatric laryngotracheal stenosis and discuss potential applications of three-dimensional printed models in airway surgery.MethodRetrospective case series in a tertiary care aerodigestive centre.ResultsThree-dimensional printing was undertaken in two cases of paediatric laryngotracheal stenosis. One patient with grade 4 subglottic stenosis with posterior glottic involvement underwent an extended partial cricotracheal reconstruction. Another patient with grade 4 tracheal stenosis underwent tracheal resection and end-to-end anastomosis. Models of both tracheas were printed using PolyJet technology from a Stratasys Connex2 printer.ConclusionIt is feasible to demonstrate stenosis in three-dimensional printed models, allowing for patient-specific pre-operative surgical simulation. The models serve as an educational tool for patients’ understanding of the surgery, and for teaching residents and fellows.

scholarly journals A Review of Current Clinical Applications of Three-Dimensional Printing in Spine Surgery

2018 ◽  
Vol 12 (1) ◽  
pp. 171-177 ◽  
Author(s):  
Woojin Cho ◽  
Alan Varkey Job ◽  
Jing Chen ◽  
Jung Hwan Baek
Keyword(s):  
3D Printing ◽  
Spine Surgery ◽  
Three Dimensional ◽  
Patient Specific ◽  
Printing Technology ◽  
Surgical Guidance ◽  
Wide Range ◽  
Surgical Simulations ◽  
3D Printers ◽  
Visual Understanding

<p>Three-dimensional (3D) printing is a transformative technology with a potentially wide range of applications in the field of orthopaedic spine surgery. This article aims to review the current applications, limitations, and future developments of 3D printing technology in orthopaedic spine surgery. Current preoperative applications of 3D printing include construction of complex 3D anatomic models for improved visual understanding, preoperative surgical planning, and surgical simulations for resident education. Intraoperatively, 3D printers have been successfully used in surgical guidance systems and in the creation of patient specific implantable devices. Furthermore, 3D printing is revolutionizing the field of regenerative medicine and tissue engineering, allowing construction of biocompatible scaffolds suitable for cell growth and vasculature. Advances in printing technology and evidence of positive clinical outcomes are needed before there is an expansion of 3D printing applied to the clinical setting.</p>

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 Vascular 3D Printing with a Novel Biological Tissue Mimicking Resin for Patient-Specific Procedure Simulations in Interventional Radiology: a Feasibility Study

2022 ◽  
Author(s):  
R. Kaufmann ◽  
C. J. Zech ◽  
M. Takes ◽  
P. Brantner ◽  
F. Thieringer ◽  
...  
Keyword(s):  
Interventional Radiology ◽  
3D Printing ◽  
Biological Tissue ◽  
Vascular System ◽  
Three Dimensional ◽  
Case Series ◽  
Ct Scanning ◽  
Patient Specific ◽  
Specific Procedure ◽  
Ct Data

AbstractThree-dimensional (3D) printing of vascular structures is of special interest for procedure simulations in Interventional Radiology, but remains due to the complexity of the vascular system and the lack of biological tissue mimicking 3D printing materials a technical challenge. In this study, the technical feasibility, accuracy, and usability of a recently introduced silicone-like resin were evaluated for endovascular procedure simulations and technically compared to a commonly used standard clear resin. Fifty-four vascular models based on twenty-seven consecutive embolization cases were fabricated from preinterventional CT scans and each model was checked for printing success and accuracy by CT-scanning and digital comparison to its original CT data. Median deltas (Δ) of luminal diameters were 0.35 mm for clear and 0.32 mm for flexible resin (216 measurements in total) with no significant differences (p > 0.05). Printing success was 85.2% for standard clear and 81.5% for the novel flexible resin. In conclusion, vascular 3D printing with silicone-like flexible resin was technically feasible and highly accurate. This is the first and largest consecutive case series of 3D-printed embolizations with a novel biological tissue mimicking material and is a promising next step in patient-specific procedure simulations in Interventional Radiology.

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