Results 251 to 260 of about 21,221 (284)

Endoscopic Ultrasound-Guided Fiducial Markers and Brachytherapy

Gastrointestinal Endoscopy Clinics of North America, 2012
Endoscopic ultrasound (EUS)-guided needle placement of small radiopaque particles paves the way for EUS-guided fiducial markers and brachytherapy. Stereotactic body radiation therapy relies on image-guided radiation therapy (IGRT), permitting escalation of radiation dose to tumors while minimizing dose to normal tissues. Fiducial markers are radiopaque
Zhendong, Jin, Kenneth J, Chang
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Fiducial Marker Placement for Intraoperative Spine Localization

Journal of Vascular and Interventional Radiology, 2011
In recent years, there has been a great increase in the number of cases of image-guided fiducial marker placement for the purposes of stereotactic radiosurgery. At the authors' parent institution, a tertiary referral academic medical center, the placement of fiducial markers has also been used for the purposes of localization before spine surgery ...
Daniel A, Marichal, David W, Barnett, James D, Meler, Kennith F, Layton   +3 more
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Fiducial Markers for Image Guided Partial Breast Irradiation

International Journal of Radiation Oncology*Biology*Physics, 2012
This study was undertaken to study the role of fiducial markers for image-guided partial breast irradiation (IG-PBI), and to compare the shifts based on bony anatomy and fiducial markers.Fifteen patients underwent IGPBI. Three fiducial markers were placed in the tumour bed at the time of surgery.
Marco, Trovo, Jerry, Polesel, Cristina, Biasutti, Giovanna, Sartor, Mario, Roncadin, Gaetano Mauro, Trovo   +5 more
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Tracking fiducial markers with discriminative correlation filters

Image and Vision Computing, 2021
In the last few years, squared fiducial markers have become a popular and efficient tool to solve monocular localization and tracking problems at a very low cost. Nevertheless, marker detection is affected by noise and blur: small camera movements may cause image blurriness that prevents marker detection.
Romero-Ramirez, Francisco J., Muñoz-Salinas, Rafael, Medina-Carnicer, Rafael   +2 more
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Hyperthermia properties of gold fiducial markers

Physica Medica, 2018
Purpose. The combination of Radiotherapy and Magnetic Fluid Hyperthermia (MFH) is gaining importance since it may offer new strategies for several oncological pathologies. In MFH magnetic nanoparticles are injected directly into the tumour and, under the action of an externally applied alternating magnetic field HAC, they generate an amount of heat ...
S. Gallo, P. Arosio, M. Avolio, L. Bonizzoni, M. Cobianchi, M. Gargano, N. Ludwig, F. Orsini, I. Veronese   +8 more
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Embedding prolene for the development of fiducial markers

The Anatomical Record, 1989
AbstractA simple, inexpensive method is described for embedding Prolene with tissue samples to provide landmarks for fiducial points to align serial sections in tissue reconstructions. Prolene is a monofilament suture material that can be easily sectioned with diamond knives to provide circular markers in each section.
C L, Johnson, R A, Underwood, K A, Holbrook   +2 more
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Using dynamic programming to improve fiducial marker localization

Physics in Medicine and Biology, 2014
Fiducial markers are used in a wide range of medical imaging applications. In radiation therapy, they are often implanted near tumors and used as motion surrogates that are tracked with fluoroscopy. We propose a novel and robust method based on dynamic programming (DP) for retrospectively localizing radiopaque fiducial markers in fluoroscopic images ...
Hanlin, Wan, Jiajia, Ge, Parag, Parikh
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A noninvasive, reattachable skull fiducial marker system

Journal of Neurosurgery, 1995
✓ As computer-interactive technologies become more widely used in neurosurgery, radiology, and radiation therapy, the need for an optimum skull fiducial marker system increases. In the past, intracranial localization methods required precisely machined metal frames and rigid pin fixation to the skull.
M A, Howard, M B, Dobbs, T M, Simonson, W E, LaVelle, M A, Granner   +4 more
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Intra-prostatic Fiducial Markers and Concurrent Androgen Deprivation

Clinical Oncology, 2005
To document the case of a man with adenocarcinoma of the prostate treated with external beam radiotherapy and concurrent androgen deprivation.The man, who received 79.8 Gy in 42 fractions of radiotherapy over 8.5 weeks using three intra-prostatic gold fiducial markers for on-line set-up correction, started an anti-androgen 2.5 weeks before radiotherapy,
A M, Nichol, T, Rosewall, C N, Catton, D A, Jaffray, P R, Warde   +4 more
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Edible fiducial marker made of edible retroreflector

Computers & Graphics, 2018
Abstract In Augmented Reality (AR) and Mixed Reality (MR), it is important to measure the position and orientation of objects in the real world. However, there were many difficulties in recognizing objects from images along, especially considering real-time processing.
Hiromasa Oku, Takahiro Uji, Yiting Zhang, Kumi Shibahara   +3 more
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