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Towards Projector-based Visualization for Computer-assisted CABG at the Open Heart

by Christine Hartung, Claudia Gnahm, Stefan Sailer, Marcel Schenderlein, Reinhard Friedl, Martin Hoffmann, Klaus Dietmayer
"... Abstract. Computer-assistance in coronary artery bypass grafting at the open heart with intraoperative navigation enables accurate placement of a bypass graft to a preoperatively planned anastomosis site. So far, navigation information were displayed on a monitor, requiring the operating surgeon to ..."
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Abstract. Computer-assistance in coronary artery bypass grafting at the open heart with intraoperative navigation enables accurate placement of a bypass graft to a preoperatively planned anastomosis site. So far, navigation information were displayed on a monitor, requiring the operating surgeon

Intraoperative Visualization of Fiber Tracking Based Reconstruction of Language Pathways in

by Glioma Surgery
"... BACKGROUND: For neuroepithelial tumors, the surgical goal is maximum resection with preservation of neurological function. This is contributed to by intraoperative magnetic resonance imaging (iMRI) combined with multimodal navigation. OBJECTIVE: We evaluated the contribution of diffusion tensor imag ..."
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of language pathways integrated in neuro-navigation. The tensor deflection algorithm was routinely used and its results intra-operatively displayed in all cases. The CA algorithm was furthermore evaluated in 23 cases. Volumetric assessment was performed in pre- and intraoperative MR images. To evaluate

Intraoperative 3D Visualization for Surgical Field Deformation with Geometric Pattern Projection

by Shigeyuki Suzuki, Yoshito Otake, Yoshihiko Nakamura
"... Recently there have been many efforts to investigate navigation technology and apply it in various clinical fields in which the target position in the surgical region is indi-cated during surgery. The objective is to facilitate an intui-tive understanding of the surgical region by the surgeon, so th ..."
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Recently there have been many efforts to investigate navigation technology and apply it in various clinical fields in which the target position in the surgical region is indi-cated during surgery. The objective is to facilitate an intui-tive understanding of the surgical region by the surgeon, so

Laparoscopic Navigated Liver Resection: Technical Aspects and Clinical Practice in Benign Liver Tumors

by Article Id, Osama Shahin, Hans-peter Bruch, Tilman Laubert
"... Copyright © 2012 Markus Kleemann et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Laparoscopic liver resection has been perform ..."
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performed mostly in centers with an extended expertise in both hepatobiliary and laparo-scopic surgery and only in highly selected patients. In order to overcome the obstacles of this technique through improved intraop-erative visualization we developed a laparoscopic navigation system (Lap

Grid-Enabled Software Environment for Enhanced Dynamic Data-Driven Visualization and Navigation During Image-Guided

by Nikos Chrisochoides, Andriy Fedorov, Andriy Kot, Daniel Goldberg-zimring, Stephen Whalen, Ferenc Jolesz, Olivier Clatz, Simonk. Warfield, Peter M. Black, Ra Golby
"... Abstract. In this paper we present our experience with an Image Guided Neurosurgery Grid-enabled Software Environment (IGNS-GSE) which integrates real-time acquisition of intraoperative Magnetic Resonance Imaging (IMRI) with the preoperative MRI, fMRI, and DT-MRI data. We describe our distributed im ..."
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at Brigham and Women’s Hospital in Boston, MA. Based on the analysis of the registration results, we also present future directions which will take advantage of the vast resources of the Grid to improve the accuracy of the method in places of the brain where precision is critical for the neurosurgeons

Clinical Study Intraoperative Cerebral Glioma Characterization with Contrast Enhanced Ultrasound

by Alberto Martegani, Francesco Dimeco
"... Copyright © 2014 Francesco Prada et al.This is an open access article distributed under theCreativeCommonsAttributionLicense, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Background. Contrast enhanced ultrasound (CEUS) is ..."
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) is a dynamic and continuous modality providing real-time view of vascularization and flow distribution patterns of different organs and tumors. Nevertheless its intraoperative use for brain tumors visualization has been performed few times, and a thorough characterization of cerebral glioma had never

TECHNIQUE ASSESSMENTS Neuronavigation by Intraoperative Three-dimensional Ultrasound: Initial Experience during Brain Tumor Resection

by Geirmund Unsgaard, Ph. D, Steinar Ommedal, B. Sc, Tomm Muller, Ph. D, Aage Gronningsaeter, Toril A. Nagelhus Hernes
"... OBJECTIVE: Three-dimensional (3-D) ultrasound is an intraoperative imaging modality used in neuronavigation as an alternative to magnetic resonance imaging (MRI). This article summarizes 4 years of clinical experience in the use of intraoperative 3-D ultrasound integrated into neuronavigation for gu ..."
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with navigation technology solves the orientation problem experienced previously with two-dimensional ultrasound in neurosurgery. The technology makes it possible to directly compare intraoperative ultrasound and MRI data regarding visualization of the lesion. Ultrasound image quality is useful for guiding

Published Online First

by Vincenzo Maurino, Moorfields Eye Hospital, Dr Gianluca Carifi Moorfields, Refractive Surgeons, To Cite Carifi G, Safa F, Aiello F, Et Al. Br J , 2014
"... Aim To evaluate the clinical outcomes of phacoemulsification cataract surgery in microphthalmos. Methods Retrospective consecutive case series of eyes with axial length <20.9 mm, and requiring a high intraocular lens (IOL) power (≥30 or ≥35 dioptres for anterior or posterior chamber fixation, res ..."
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, respectively), with no history of previous ocular surgery, and undergoing planned phacoemulsification cataract surgery with IOL implantation at Moorfields Eye Hospital was investigated to observe the incidence of intraoperative and postoperative complications. Results During a 5-year study period, 47 of 22 093

Clinical Study Perceived Pain during Cataract Surgery with Topical Anesthesia: A Comparison between First-Eye and Second-Eye Surgery

by Lin Jiang, Keke Zhang, Wenwen He, Xiangjia Zhu, Peng Zhou, Yi Lu
"... Copyright © 2015 Lin Jiang et al.This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Purpose. To compare pain scores between first-eye an ..."
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questionnaires before surgery, and VAS for pain and Wong-Baker Faces Pain Rating Scale questionnaires after surgery. Blood pressure (BP) and heart rate (HR) were recorded perioperatively. Results. A greater proportion of patients who underwent second-eye surgery reported intraoperative pain compared with first

Virtual Fly-Over: A New Visualization Technique For Virtual Colonoscopy

by M. Sabry Hassouna, A. A. Farag, Robert Falk
"... Abstract. In this paper, we propose a new visualization technique for virtual colonoscopy (VC). The proposed method is called Virtual Fly-Over, which splits the entire colon anatomy into exactly two halves. Then, it assigns a virtual camera to each half to perform fly-over navigation, which has seve ..."
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Abstract. In this paper, we propose a new visualization technique for virtual colonoscopy (VC). The proposed method is called Virtual Fly-Over, which splits the entire colon anatomy into exactly two halves. Then, it assigns a virtual camera to each half to perform fly-over navigation, which has
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