Results 261 to 270 of about 9,169,048 (321)

Tissue Tracking and Registration for Image-Guided Surgery

IEEE Transactions on Medical Imaging, 2012
Vision-based tracking of tissue is a key component to enable augmented reality during a surgical operation. Conven- tional tracking techniques in computer vision rely on identifying strong edge features or distinctive textures in a well-lit environ- ment; however endoscopic tissue images do not have strong edge features, are poorly lit and exhibit a ...
Michael C. Yip, David G. Lowe, Septimiu E. Salcudean, Robert Rohling, Christopher Y. Nguan   +4 more
openaire   +2 more sources

Comparison of tissue tracking assessment by cardiovascular magnetic resonance for cardiac amyloidosis and hypertrophic cardiomyopathy

Acta Radiologica, 2020
Background Administration of gadolinium-contrast can cause problems in cardiac amyloidosis (CA) patients with impaired renal function. Purpose To compare patterns of cardiovascular magnetic resonance tissue tracking (CMR-TT) for CA and hypertrophic ...
H. Jung, S. Kim, J. H. Lee, Y. Kim, Sang-Chol Lee, Eun-Seok Jeon, H. Yong, Y. Choe   +7 more
semanticscholar   +1 more source

LiteTracker: Leveraging Temporal Causality for Accurate Low-latency Tissue Tracking

International Conference on Medical Image Computing and Computer-Assisted Intervention
Tissue tracking plays a critical role in various surgical navigation and extended reality (XR) applications. While current methods trained on large synthetic datasets achieve high tracking accuracy and generalize well to endoscopic scenes, their runtime ...
M. Karaoglu, Wenbo Ji, Ahmed Abbas, N. Navab, Benjamin Busam, A. Ladikos   +5 more
semanticscholar   +1 more source

Tracking down tissues

Nature Biotechnology, 2007
FDA inspections of tissue banks remain a work in progress, and no clear path yet exists for procuring human tissues for biomedicine or drug development. Emily Waltz investigates.
openaire   +1 more source

Microdosimetric structure of heavy ion tracks in tissue

Radiation and Environmental Biophysics, 1976
Energy dissipation in tracks of high energy heavy ions in tissue shows a lateral spread of several to many microns depending on the energy of the primary particle. Complete dosimetric characterization, therefore, requires in addition to the Linear Energy Transfer (LET) information on the radial energy distribution.
A, Chatterjee, H J, Schaefer
openaire   +2 more sources

Photon tracking in a multilayer tissue model

The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2005
A multilayer tissue description was employed in a Monte Carlo simulation of light-tissue interaction to study photon travel through skin. Paths of photons returning to the tissue surface at a certain range from the point of entry (emitter-detector spacing) were collected.
openaire   +2 more sources

Performance of ultrasonic speckle tracking in various tissues

The Journal of the Acoustical Society of America, 1995
The purpose of this study was to investigate the accuracy of ultrasound speckle tracking in various tissues. Results from two-dimensional tissue speckle tracking in liver, muscle, fat, and sponge samples are presented, while keeping other speckle tracking parameters constant. Speckle tracking performance was characterized both in terms of the magnitude
E J, Chen, W K, Jenkins, W D, O'Brien
openaire   +2 more sources

Tracking of microtubules in anisotropic volumes of neural tissue

2016 IEEE 13th International Symposium on Biomedical Imaging (ISBI), 2016
Peer ...
Julia M. Buhmann, Stephan Gerhard, Matthew Cook 0001, Jan Funke   +3 more
openaire   +4 more sources

Assessment of decreased left ventricular longitudinal deformation in asymptomatic patients with organic mitral regurgitation and preserved ejection fraction using tissue‐tracking mitral annular displacement by speckle‐tracking echocardiography

Echocardiography, 2019
Application of speckle‐tracking echocardiography (STE) provides rapid assessment of tissue‐tracking mitral annular displacement (TMAD). We investigated the value of TMAD for the assessment of decreased LV longitudinal deformation in asymptomatic patients
I. Teraguchi, T. Hozumi, K. Takemoto, S. Ota, M. Kashiwagi, K. Shimamura, Y. Shiono, A. Kuroi, T. Yamano, T. Yamaguchi, Y. Matsuo, Y. Ino, H. Kitabata, T. Kubo, A. Tanaka, T. Akasaka   +15 more
semanticscholar   +1 more source

Three-Dimensional Tissue Deformation Recovery and Tracking

IEEE Signal Processing Magazine, 2010
Recent advances in surgical robotics have provided a platform for extending the current capabilities of minimally invasive surgery by incorporating both preoperative and intraoperative imaging data. In this tutorial article, we introduce techniques for in vivo three-dimensional (3-D) tissue deformation recovery and tracking based on laparoscopic or ...
Peter Mountney, Danail Stoyanov, Guang-Zhong Yang   +2 more
openaire   +3 more sources