Results 41 to 50 of about 12,109,427 (256)

A comparison of treatment outcome between fiducial-based and bone-based image guided radiotherapy in prostate cancer patients

open access: yesRadiation Oncology, 2018
Background and purpose To compare the clinical outcome in prostate cancer patients treated with radiotherapy using two forms of image guidance: bone-based (BB) or fiducial-based (FB).
Aleksandra Napieralska   +4 more
doaj   +1 more source

Mechanical high-intensity focused ultrasound creates unique tumor debris enhancing dendritic cell-induced T cell activation

open access: yesFrontiers in Immunology, 2022
IntroductionIn situ tumor ablation releases a unique repertoire of antigens from a heterogeneous population of tumor cells. High-intensity focused ultrasound (HIFU) is a completely noninvasive ablation therapy that can be used to ablate tumors either by ...
Renske J. E. van den Bijgaart   +10 more
doaj   +1 more source

WE-A-BRA-03: Towards real-time ultrasound image-guided abdominal radiotherapy

open access: yes, 2012
Accurate tumor positioning in stereotactic body radiotherapy of abdominal lesions is often hampered by organ motion and set-up errors. The problems of the daily variation (interfractional motion) in tumor position can be partially corrected with on-line ...
van der Meer, S.   +5 more
core   +1 more source

Different styles of image-guided radiotherapy

open access: yes, 2007
To account for geometric uncertainties during radiotherapy, safety margins are applied. In many cases, these margins overlap organs at risk, thereby limiting dose escalation.
van Herk, Marcel
core   +2 more sources

Helium ion beam imaging for image guided ion radiotherapy

open access: yesRadiation Oncology, 2018
Background Ion beam radiotherapy provides potential for increased dose conformation to the target volume. To translate it into a clinical advantage, it is necessary to guarantee a precise alignment of the actual internal patient geometry with the ...
M. Martišíková   +4 more
doaj   +1 more source

Leaf-individual calibration for a double stack multileaf collimator in photon radiotherapy

open access: yesPhysics and Imaging in Radiation Oncology, 2023
Background and Purpose: In online adaptive stereotactic body radiotherapy treatments, linear accelerator delivery accuracy is essential. Recently introduced double stack multileaf collimators (MLCs) have new facets in their calibration.
Carolin Rippke   +7 more
doaj   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

open access: yesFEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward   +2 more
wiley   +1 more source

Image-Guided Radiotherapy Targets Macromolecules through Altering the Tumor Microenvironment

open access: yes, 2016
Current strategies to target tumors with nanomedicines rely on passive delivery via the enhanced permeability and retention effect, leveraging the disorganized tumor microvasculature to promote macromolecule extravasation and the reduced lymphatic and ...
Stephen J. Kron (2108671)   +4 more
core   +1 more source

Modelling and reconstructing the respiratory motion of the liver [PDF]

open access: yes, 2013
Respiratory organ motion is a complicating factor in tumour treatment. For dose delivery, the aim is to obtain a possibly static target in the beam's eye view whenever the beam is on.
Preiswerk, Frank
core   +1 more source

Adaptive Magnetic Resonance-Guided Stereotactic Body Radiotherapy: The Next Step in the Treatment of Renal Cell Carcinoma

open access: yesFrontiers in Oncology, 2021
Adaptive MR-guided radiotherapy (MRgRT) is a new treatment paradigm and its role as a non-invasive treatment option for renal cell carcinoma is evolving.
Brian Keller   +5 more
doaj   +1 more source

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