Design of smart tools to support pre- and intra-operative use of surgical navigation systems

2018 ◽  
Vol 85 (5) ◽  
pp. 351-358
Author(s):  
Oliver Gieseler ◽  
Julio C. Alvarez-Gomez ◽  
Hubert Roth ◽  
Jürgen Wahrburg
Keyword(s):  
Surgical Navigation ◽  
Surgical Instruments ◽  
Computer Assisted ◽  
Navigation Systems ◽  
Short Introduction ◽  
Surgical Interventions ◽  
Optical Surgical Navigation ◽  
Stereo Cameras ◽  
Small Display ◽  
Surgical Navigation Systems

Abstract In this paper we present novel solutions to support the application of computer assisted surgical interventions in which optical surgical navigation systems based on stereo cameras are used. The objective is to improve both the pre-operative setup and the intra-operative use of the navigation system. Following a short introduction describing the potential for improvements of existing navigation systems new approaches and the components to implement them are described. The pre-operative alignment of the stereo camera is made easier by attaching a small graphic display to its tripod which can show how much of the operating area is covered by the measurement volume of the camera. The intra-operative application is improved by a mechanism for motorized camera motions in order to follow the position of surgical instruments. Furthermore a small display can be attached to a surgical instrument which clearly indicates to the surgeon how to guide the instrument in order to stay on the planned trajectory.

scholarly journals 3D Pose Estimation with Depth Camera for Markerless Cumputer Assisted Orthopaedic Surgery

10.29007/9nc5 ◽  
2019 ◽  
Author(s):  
Jérôme Ogor ◽  
Guillaume Dardenne ◽  
Salaheddine Sta ◽  
Julien Bert ◽  
Hoël Letissier ◽  
...  
Keyword(s):  
Success Rate ◽  
Surgical Navigation ◽  
Average Distance ◽  
Synthetic Data ◽  
Surgical Instruments ◽  
Depth Camera ◽  
Navigation Systems ◽  
Clinical Environment ◽  
Additional Time ◽  
Surgical Navigation Systems

Surgical navigation systems have been used in orthopaedics for many years. These solutions however often mean additional time and complexity because, essentially, of the markers. We want to introduce a new solution based on depth camera which could be used intraoperatively to estimate the 3D pose of surgical instruments without specific markers. The goal of this paper is to assess, on synthetic data, an algorithm called Clustered Viewpoint Feature Histogram (CVFH) to estimate the pose of an orthopaedic cut guide used during knee surgeries. A specific simulator has been developed for this study which allows the simulation of a point cloud associated to the cut guide. The Average Distance Distinguishable (ADD) metric has been measured 1000 times according to several cut guide orientations and several noise levels. The success rate has also been analyzed. It is commonly considered that the pose is correctly estimated if ADD is less than 10% of the largest dimension of the object. The ADD metric and the success rate vary from 2.12 ± 4.46 mm to 2.82 ± 5.73mm and from 96.0% to 92.4% for respectively a low (0 mm) and a high noise (10mm). The results are very promising. However, more parameters have to be assessed. Similarly, the accuracy and reliability of such method have to be evaluated in a real clinical environment.

Image-Guided Spinal Surgery and Robotics in MIS: Where Are We Now?

2018 ◽  
Vol 1 (2) ◽  
pp. 2
Author(s):  
Chiung Chyi Shen
Keyword(s):  
Pedicle Screw ◽  
Spinal Surgery ◽  
Surgical Navigation ◽  
Improve Patient Safety ◽  
Intraoperative Imaging ◽  
Spinal Instrumentation ◽  
Pedicle Screws ◽  
Computer Assisted ◽  
Navigation Systems ◽  
Image Guided

Use of pedicle screws is widespread in spinal surgery for degenerative, traumatic, and oncological diseases. The conventional technique is based on the recognition of anatomic landmarks, preparation and palpation of cortices of the pedicle under control of an intraoperative C-arm (iC-arm) fluoroscopy. With these conventional methods, the median pedicle screw accuracy ranges from 86.7% to 93.8%, even if perforation rates range from 21.1% to 39.8%.The development of novel intraoperative navigational techniques, commonly referred to as image-guided surgery (IGS), provide simultaneous and multiplanar views of spinal anatomy. IGS technology can increase the accuracy of spinal instrumentation procedures and improve patient safety. These systems, such as fluoroscopy-based image guidance ("virtual fluoroscopy") and computed tomography (CT)-based computer-guidance systems, have sensibly minimized risk of pedicle screw misplacement, with overall perforation rates ranging from between 14.3% and 9.3%, respectively."Virtual fluoroscopy" allows simultaneous two-dimensional (2D) guidance in multiple planes, but does not provide any axial images; quality of images is directly dependent on the resolution of the acquired fluoroscopic projections. Furthermore, computer-assisted surgical navigation systems decrease the reliance on intraoperative imaging, thus reducing the use of intraprocedure ionizing radiation. The major limitation of this technique is related to the variation of the position of the patient from the preoperative CT scan, usually obtained before surgery in a supine position, and the operative position (prone). The next technological evolution is the use of an intraoperative CT (iCT) scan, which would allow us to solve the position-dependent changes, granting a higher accuracy in the navigation system. 

Cone-Beam Computed Tomography Allows Accurate Registration to Surgical Navigation Systems: A Multidevice Phantom Study

2019 ◽  
Vol 33 (6) ◽  
pp. 691-699 ◽  
Author(s):  
Benjamin J. Talks ◽  
Karan Jolly ◽  
Hanna Burton ◽  
Hitesh Koria ◽  
Shahzada K. Ahmed
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Surgical Navigation ◽  
Imaging Modality ◽  
Field Of View ◽  
Cone Beam ◽  
Navigation Systems ◽  
Registration Error ◽  
Surgical Navigation Systems ◽  
Phantom Head

Background Cone-beam computed tomography (CBCT) is a fast imaging technique with a substantially lower radiation dosage than conventional multidetector computed tomography (MDCT) for sinus imaging. Surgical navigation systems are increasingly being used in endoscopic sinus and skull base surgery, reducing perioperative morbidity. Objective To investigate CBCT as a low-radiation imaging modality for use in surgical navigation. Methods The required field of view was measured from the tip of the nose to the posterior clinoid process anteroposteriorly and the nasolabial angle to the roof of the frontal sinus superoinferiorly on 50 consecutive MDCT scans (male = 25; age = 17–85 years). A phantom head was manufactured by 3-dimensional printing and imaged using 3 CBCT scanners (Carestream, J Morita, and NewTom), a conventional MDCT scanner (Siemens), and highly accurate laser scanner (FARO). The phantom head was registered to 3 surgical navigation systems (Brainlab, Stryker, and Medtronic) using scans from each system. Results The required field of view (mean ± standard deviation) was measured as 107 ± 7.6 mm anteroposteriorly and 90.3 ± 9.6 mm superoinferiorly. Image error deviations from the laser scan (median ± interquartile range) were comparable for MDCT (0.19 ± 0.09 mm) and CBCT (CBCT 1: 0.15 ± 0.11 mm; CBCT 2: 0.33 ± 0.18 mm; and CBCT 3: 0.13 ± 0.13 mm) scanners. Fiducial registration error and target registration error were also comparable for MDCT- and CBCT-based navigation. Conclusion CBCT is a low-radiation preoperative imaging modality suitable for use in surgical navigation.

Computer Assisted Navigation Systems for Hip and Knee Reconstructive Surgery: Evaluation of Traditional Surgical Technique

2001 ◽  
Author(s):  
Anthony M. DiGioia ◽  
Frederic Picard ◽  
Branislav Jaramaz ◽  
David Sell ◽  
James C. Moody ◽  
...  
Keyword(s):  
Surgical Technique ◽  
Patient Outcomes ◽  
Reconstructive Surgery ◽  
Surgical Navigation ◽  
Surgical Techniques ◽  
Measurement Tool ◽  
Computer Assisted ◽  
Navigation Systems ◽  
Assisted Navigation ◽  
Surgical Navigation System

Abstract In this paper we describe a surgical navigation system named HipNav (Hip-Navigation) for THR and KneeNav (Knee-Navigation) for TKR with an emphasis on using these systems as a real time intraoperative measurement tool (these enabling technologies are the surgical toolbox of the future). This approach will permit the direct comparison of patient outcomes with measurable surgical techniques.

scholarly journals 18F-Fluciclovine PET to distinguish treatment-related effects from disease progression in recurrent glioblastoma: PET fusion with MRI guides neurosurgical sampling

2019 ◽  
Vol 7 (2) ◽  
pp. 152-157 ◽  
Author(s):  
Fraser Henderson ◽  
Steven Brem ◽  
Donald M O’Rourke ◽  
MacLean Nasrallah ◽  
Vivek P Buch ◽  
...  
Keyword(s):  
Surgical Navigation ◽  
Unmet Need ◽  
Recurrent Glioblastoma ◽  
Navigation Systems ◽  
Imaging Findings ◽  
Radiotracer Uptake ◽  
Mri Guided ◽  
Surgical Navigation Systems ◽  
Stereotactic Biopsies ◽  
Surgical Sampling

Abstract Differentiation of true tumor progression from treatment-related effects remains a major unmet need in caring for patients with glioblastoma. Here, we report how the intraoperative combination of MRI with18F-fluciclovine PET guided surgical sampling in 2 patients with recurrent glioblastoma.18F-Fluciclovine PET is FDA approved for use in prostate cancer and carries an orphan drug designation in glioma. To investigate its utility in recurrent glioblastoma, we fused PET and MRI images using 2 different surgical navigation systems and performed targeted stereotactic biopsies from the areas of high (“hot”) and low (“cold”) radiotracer uptake. Concordant histopathologic and imaging findings suggest that a combined18F-fluciclovine PET-MRI–guided approach can guide neurosurgical resection of viable recurrent glioblastoma in the background of treatment-related effects, which can otherwise look similar on MRI.

HEALTHCARE 2019

2020 ◽  
pp. 52-60
Author(s):  
V. I. Matveev
Keyword(s):  
Medical Equipment ◽  
Surgical Navigation ◽  
Health Care Organization ◽  
Care Organization ◽  
Navigation Systems ◽  
Resonance Imaging ◽  
X Ray ◽  
Modern System ◽  
Magnetic Therapy ◽  
Surgical Navigation Systems

The article provides a brief description of the exhibition "Healthcare 2019", which was attended by 630 companies from 30 countries and 71 cities in Russia. It was possible to get acquainted with the modern system of health care organization, the necessary simple and complex medical equipment, numerous accessories and consumables. The exhibition presented: medical x-ray equipment of wide application (computer tomographs, mammographs, mobile devices), magnetic resonance imaging, ultrasound medical equipment, microscopes, endoscopic equipment, surgical navigation systems, as well as magnetic therapy, thermography and radiothermometry. The companies showed the best examples of modern medical equipment.

Clinical Application of Different Surgical Navigation Systems in Complex Craniomaxillofacial Surgery

2016 ◽  
Vol 76 (4) ◽  
pp. 411-419 ◽  
Author(s):  
Tom J. Liu ◽  
An-Ta Ko ◽  
Yueh-Bih Tang ◽  
Hong-Shiee Lai ◽  
Hsiung-Fei Chien ◽  
...  
Keyword(s):  
Clinical Application ◽  
Surgical Navigation ◽  
Navigation Systems ◽  
Craniomaxillofacial Surgery ◽  
Surgical Navigation Systems
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