Results 1 - 10
of
26
High-Performance Intraoperative Cone-Beam CT on a Mobile C-Arm: An Integrated System for Guidance of Head and Neck Surgery
"... A system for intraoperative cone-beam CT (CBCT) surgical guidance is under development and translation to trials in head and neck surgery. The system provides 3D image updates on demand with sub-millimeter spatial resolution and soft-tissue visibility at low radiation dose, thus overcoming conventio ..."
Abstract
-
Cited by 2 (0 self)
- Add to MetaCart
A system for intraoperative cone-beam CT (CBCT) surgical guidance is under development and translation to trials in head and neck surgery. The system provides 3D image updates on demand with sub-millimeter spatial resolution and soft-tissue visibility at low radiation dose, thus overcoming
Efficient Segmentation of 3D Fluoroscopic Datasets from Mobile C-arm
"... The emerging mobile fluoroscopic 3D technology linked with a navigation system combines the advantages of CT-based and C-arm-based navigation. The intra-operative, automatic segmentation of 3D fluoroscopy datasets enables the combined visualization of surgical instruments and anatomical structures f ..."
Abstract
- Add to MetaCart
The emerging mobile fluoroscopic 3D technology linked with a navigation system combines the advantages of CT-based and C-arm-based navigation. The intra-operative, automatic segmentation of 3D fluoroscopy datasets enables the combined visualization of surgical instruments and anatomical structures
Imaging with Flat-Detector C-Arm Systems
- Berlin / Heidelberg
, 2009
"... Three-dimensional (3D) C-arm computed tomog-raphy is a new and innovative imaging technique. It uses two-dimensional (2D) X-ray projections acquired with a flat-panel detector C-arm angiog-raphy system to generate CT-like images. To this end, the C-arm system performs a sweep around the patient, acq ..."
Abstract
-
Cited by 4 (3 self)
- Add to MetaCart
Three-dimensional (3D) C-arm computed tomog-raphy is a new and innovative imaging technique. It uses two-dimensional (2D) X-ray projections acquired with a flat-panel detector C-arm angiog-raphy system to generate CT-like images. To this end, the C-arm system performs a sweep around the patient
Effective One Step-iterative Fiducial Marker-based Compensation for Involuntary Motion in Weight-bearing C-arm Cone-beam CT Scanning of Knees
"... We previously introduced three different fiducial marker-based correction methods (2D projection shifting, 2D projection warping, and 3D image warping) for patients ’ involuntary motion in the lower body during weight-bearing C-arm CT scanning. The 3D warping method performed better than 2D methods ..."
Abstract
- Add to MetaCart
standing at various flexion angles were acquired using a C-arm cone-beam CT system with a flat panel. A horizontal scanning trajectory of the C-arm was calibrated to generate projection matrices. Using the projection matrices, the static reference marker coordinates in 3D were estimated and used
Registration-Free Laparoscope Augmentation for Intra-Operative Liver Resection Planning
"... In recent years, an increasing number of liver tumor indications were treated by minimally invasive laparoscopic resection. Besides the restricted view, a major issue in laparoscopic liver resection is the enhanced visualization of (hidden) vessels, which supply the tumorous liver segment and thus n ..."
Abstract
- Add to MetaCart
can be gated and synchronized intra-operatively, motion caused by pneumoperitoneum is individual for every patient and difficult to estimate. Therefore, we propose to use an optically tracked mobile C-arm providing cone-beam CT imaging capability intraoperatively. The C-arm is able to visualize soft
Dynamic Dosimetry and Edema Detection in Prostate Brachytherapy -a Complete System
"... ABSTRACT Purpose: Brachytherapy (radioactive seed insertion) has emerged as one of the most effective treatment options for patients with prostate cancer, with the added benefit of a convenient outpatient procedure. The main limitation in contemporary brachytherapy is faulty seed placement, predomi ..."
Abstract
- Add to MetaCart
in prostate brachytherapy requires localization of inserted radioactive seeds relative to the prostate. Seeds were reconstructed using a typical non-isocentric C-arm, and exported to a commercial brachytherapy delivery system. Technical obstacles for 3D reconstruction on a nonisocentric C-arm include pose
Robust Model-based 3D/3D Fusion using Sparse Matching for Minimally Invasive Surgery
"... Abstract. Classical surgery is being disrupted by minimally invasive and transcatheter procedures. As there is no direct view or access to the affected anatomy, advanced imaging techniques such as 3D C-arm CT and C-arm fluoroscopy are routinely used for intra-operative guidance. However, intra-opera ..."
Abstract
- Add to MetaCart
Abstract. Classical surgery is being disrupted by minimally invasive and transcatheter procedures. As there is no direct view or access to the affected anatomy, advanced imaging techniques such as 3D C-arm CT and C-arm fluoroscopy are routinely used for intra-operative guidance. However, intra-operative
Intraoperative Laparoscope Augmentation for Port Placement and Resection Planning in Minimally
"... Abstract—In recent years, an increasing number of liver tumor indications were treated by minimally invasive laparoscopic resection. Besides the restricted view, two major intraoperative issues in laparoscopic liver resection are the optimal planning of ports as well as the enhanced visualization of ..."
Abstract
- Add to MetaCart
, preoperative imaging data can hardly be used. Instead, we propose to use an optically tracked mobile C-arm providing cone-beam CT imaging capability intraoperatively. After patient positioning, port placement, and carbon dioxide insufflation, the liver vessels are contrasted and a 3-D volume is reconstructed
Open Access Flap Decisions and Options in Soft Tissue Coverage of the Upper Limb
"... Abstract: Soft tissue deficiency in the upper limb is a common presentation following trauma, burns infection and tumour removal. Soft tissue coverage of the upper limb is a challenging problem for reconstructive surgeons to manage. The ultimate choice of soft tissue coverage will depend on the size ..."
Abstract
- Add to MetaCart
Abstract: Soft tissue deficiency in the upper limb is a common presentation following trauma, burns infection and tumour removal. Soft tissue coverage of the upper limb is a challenging problem for reconstructive surgeons to manage. The ultimate choice of soft tissue coverage will depend
1874-3250/09 2009 Bentham Open Open Access Early Weight Bearing of Calcaneal Fractures Treated by Intraoperative
"... Abstract: Operative therapy of intraarticular fractures of the calcaneus is an established surgical standard. The aim is an accurate reduction of the fracture with reconstruction of Boehler’s angle, length, axis and subtalar joint surface. Intraoperative 3D-fluoroscopy with the Siremobil Iso-C 3D m ..."
Abstract
- Add to MetaCart
mobile C-arm system is a valuable assistant for accurate reconstruction of these anatomical structures. Remaining incongruities can be recognized and corrected intraoperatively. The achieved reduction can be fixed by the advantages of an internal fixator (locked-screw plate interface). In the period
Results 1 - 10
of
26