Articles with "fiducial markers" as a keyword



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Beam distortion due to gold fiducial markers during salvage high‐intensity focused ultrasound in the prostate

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Published in 2017 at "Medical Physics"

DOI: 10.1002/mp.12044

Abstract: Purpose: High intensity focused ultrasound (HIFU) provides a non‐invasive salvage treatment option for patients with recurrence after external beam radiation therapy (EBRT). As part of EBRT the prostate is frequently implanted with permanent fiducial markers.… read more here.

Keywords: focus; hifu; fiducial markers; distortion ... See more keywords
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Directional scatter imaging for the stereoscopic tracking of fiducial markers in a single kV exposure

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Published in 2018 at "Medical Physics"

DOI: 10.1002/mp.12712

Abstract: PURPOSE To demonstrate, via Monte Carlo simulation, that an image obtained from the patient-generated scattered radiation forced to impinge on the detector from a known direction by means of parallel-focused grids, can be used to… read more here.

Keywords: image; fiducial markers; directional scatter; exposure ... See more keywords
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55Mn‐based fiducial markers for rapid and automated RF coil localization for hyperpolarized 13C MRI

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Published in 2020 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.28424

Abstract: To use fiducial markers containing manganese 55 to rapidly localize carbon 13 (13C) RF coils for correcting images for B1 variation. read more here.

Keywords: fiducial markers; based fiducial; 55mn based; rapid automated ... See more keywords
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Fiducial markers: can the urologist do better?

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Published in 2018 at "World Journal of Urology"

DOI: 10.1007/s00345-018-2515-0

Abstract: IntroductionRadiotherapy to the bladder has a risk of toxicity to pelvic structures, which can be reduced by using fiducial markers for targeting. Injectable contrast offers an alternative marker to gold seeds, which may fall out or… read more here.

Keywords: contrast agents; better fiducial; fiducial markers; contrast ... See more keywords
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Optimization Model for the Distribution of Fiducial Markers in Liver Intervention

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Published in 2020 at "Journal of Medical Systems"

DOI: 10.1007/s10916-020-01548-z

Abstract: The distribution of fiducial markers is one of the main factors affected the accuracy of optical navigation system. However, many studies have been focused on improving the fiducial registration accuracy or the target registration accuracy,… read more here.

Keywords: fiducial markers; distribution fiducial; optimization model; model ... See more keywords
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A relative navigation sensor for CubeSats based on LED fiducial markers

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Published in 2018 at "Acta Astronautica"

DOI: 10.1016/j.actaastro.2018.02.028

Abstract: Abstract Small satellite platforms are becoming very appealing both for scientific and commercial applications, thanks to their low cost, short development times and availability of standard components and subsystems. The main disadvantage with such vehicles… read more here.

Keywords: fiducial markers; led fiducial; sensor cubesats; navigation sensor ... See more keywords
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208. Investigation on target motion with intraprostatic fiducial markers and daily CBCT in radical radiotherapy for prostate cancer

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Published in 2018 at "Physica Medica"

DOI: 10.1016/j.ejmp.2018.04.219

Abstract: Purpose Nowadays there is a great interest on the improvement of the patient setup variability and target motion in radical radiotherapy for prostate cancer thanks to the fiducial markers inside the target [1] . The… read more here.

Keywords: prostate; motion; fiducial markers; radiotherapy ... See more keywords
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Differentiating platinum coated brachytherapy seeds and gold fiducial markers with varying off-resonant frequency offsets.

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Published in 2019 at "Magnetic resonance imaging"

DOI: 10.1016/j.mri.2019.04.005

Abstract: PURPOSE To develop an off-resonant frequency filtered method to selectively differentiate between implanted gold fiducial markers and platinum coated brachytherapy seeds. MATERIALS AND METHODS The magnetic susceptibilities for gold fiducial markers and brachytherapy seeds differ… read more here.

Keywords: seed; fiducial markers; frequency; brachytherapy seeds ... See more keywords
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UroLift in Place of Fiducial Markers for Patients With Benign Prostatic Hyperplasia Undergoing External Beam Radiation Therapy.

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Published in 2017 at "Urology"

DOI: 10.1016/j.urology.2016.11.029

Abstract: OBJECTIVE To investigate if using a novel treatment for obstructive benign prostatic hyperplasia (UroLift) to relive lower urinary tract symptoms (LUTS) prior to external beam radiotherapy (EBRT) could also supplant the use of fiducial markers… read more here.

Keywords: fiducial markers; benign prostatic; urolift; external beam ... See more keywords
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Robust Tracking Through the Design of High Quality Fiducial Markers: An Optimization Tool for ARToolKit

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Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2018.2801028

Abstract: Fiducial markers are images or landmarks placed in real environment, typically used for pose estimation and camera tracking. Reliable fiducials are strongly desired for many augmented reality (AR) applications, but currently there is no systematic… read more here.

Keywords: robust tracking; fiducial markers; design high; tracking design ... See more keywords
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Safety and efficacy of MRI-guided transurethral ultrasound ablation for radiorecurrent prostate cancer in the presence of gold fiducial markers

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Published in 2022 at "Acta Radiologica"

DOI: 10.1177/02841851221108292

Abstract: Background Safety and efficacy of ultrasound prostate ablation for radiorecurrent prostate cancer (PCa) in the presence of gold fiducial markers has not been previously reported. Purpose To evaluate safety, functional, and early-stage oncological outcomes for… read more here.

Keywords: safety; gold fiducial; ablation; efficacy ... See more keywords