Surgical Navigation Systems Recalled

2008 ◽  
Vol 38 (2) ◽  
pp. 12-13
Keyword(s):  
Surgical Navigation ◽  
Navigation Systems ◽  
Surgical Navigation Systems

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.

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

Augmented Reality for Retrosigmoid Craniotomy Planning

2021 ◽  
Author(s):  
Caio A. Neves ◽  
Christoph Leuze ◽  
Alejandro M. Gomez ◽  
Nassir Navab ◽  
Nikolas Blevins ◽  
...  
Keyword(s):  
Medical Imaging ◽  
Augmented Reality ◽  
Surgical Navigation ◽  
Internal Auditory Canal ◽  
Navigation Systems ◽  
Imaging Data ◽  
Dural Sinuses ◽  
Bone Removal ◽  
Surgical Navigation Systems ◽  
Medical Imaging Data

AbstractWhile medical imaging data have traditionally been viewed on two-dimensional (2D) displays, augmented reality (AR) allows physicians to project the medical imaging data on patient's bodies to locate important anatomy. We present a surgical AR application to plan the retrosigmoid craniotomy, a standard approach to access the posterior fossa and the internal auditory canal. As a simple and accurate alternative to surface landmarks and conventional surgical navigation systems, our AR application augments the surgeon's vision to guide the optimal location of cortical bone removal. In this work, two surgeons performed a retrosigmoid approach 14 times on eight cadaver heads. In each case, the surgeon manually aligned a computed tomography (CT)-derived virtual rendering of the sigmoid sinus on the real cadaveric heads using a see-through AR display, allowing the surgeon to plan and perform the craniotomy accordingly. Postprocedure CT scans were acquired to assess the accuracy of the retrosigmoid craniotomies with respect to their intended location relative to the dural sinuses. The two surgeons had a mean margin of davg = 0.6 ± 4.7 mm and davg = 3.7 ± 2.3 mm between the osteotomy border and the dural sinuses over all their cases, respectively, and only positive margins for 12 of the 14 cases. The intended surgical approach to the internal auditory canal was successfully achieved in all cases using the proposed method, and the relatively small and consistent margins suggest that our system has the potential to be a valuable tool to facilitate planning a variety of similar skull-base procedures.

scholarly journals The effect of intraoperative imaging on surgical navigation for laparoscopic liver resection surgery

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Andrea Teatini ◽  
Egidijus Pelanis ◽  
Davit L. Aghayan ◽  
Rahul Prasanna Kumar ◽  
Rafael Palomar ◽  
...  
Keyword(s):  
Liver Resection ◽  
Liver Surgery ◽  
Surgical Navigation ◽  
Intraoperative Imaging ◽  
Preoperative Imaging ◽  
Navigation Systems ◽  
Laparoscopic Liver Surgery ◽  
Patient Registration ◽  
Surgical Navigation Systems ◽  
Annotation Errors

AbstractConventional surgical navigation systems rely on preoperative imaging to provide guidance. In laparoscopic liver surgery, insufflation of the abdomen (pneumoperitoneum) can cause deformations on the liver, introducing inaccuracies in the correspondence between the preoperative images and the intraoperative reality. This study evaluates the improvements provided by intraoperative imaging for laparoscopic liver surgical navigation, when displayed as augmented reality (AR). Significant differences were found in terms of accuracy of the AR, in favor of intraoperative imaging. In addition, results showed an effect of user-induced error: image-to-patient registration based on annotations performed by clinicians caused 33% more inaccuracy as compared to image-to-patient registration algorithms that do not depend on user annotations. Hence, to achieve accurate surgical navigation for laparoscopic liver surgery, intraoperative imaging is recommendable to compensate for deformation. Moreover, user annotation errors may lead to inaccuracies in registration processes.

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