Results 81 to 90 of about 40,132 (283)

[I186] New technologies for MR guided radiotherapy

open access: yesPhysica Medica, 2018
Purpose Provide an overview of technological developments in MR guided Radiotherapy. The key concept in MR guided Radiotherapy (MRgRT) is that the soft tissue contrast allows direct visualization of the tumor and organs-at-risk [1] . In this way an optimal plan can be devised for the actual position, shape and motion characteristics of a patient for
openaire   +1 more source

Characterization of spatial integrity with active and passive implants in a low-field magnetic resonance linear accelerator scanner

open access: yesPhysics and Imaging in Radiation Oncology
Background and Purpose: Standard imaging protocols can guarantee the spatial integrity of magnetic resonance (MR) images utilized in radiotherapy. However, the presence of metallic implants can significantly compromise this integrity. Our proposed method
Bertrand Pouymayou   +7 more
doaj   +1 more source

Individual lymph nodes: “See it and Zap it”

open access: yesClinical and Translational Radiation Oncology, 2019
Background and purpose: With magnetic resonance imaging (MRI)-guided radiotherapy systems such as the 1.5T MR-linac the daily anatomy can be visualized before, during and after radiation delivery.
Dennis Winkel   +10 more
doaj   +1 more source

Clinical application of MR-Linac in tumor radiotherapy: a systematic review

open access: yesRadiation Oncology, 2023
Recent years have seen both a fresh knowledge of cancer and impressive advancements in its treatment. However, the clinical treatment paradigm of cancer is still difficult to implement in the twenty-first century due to the rise in its prevalence ...
Xin Liu, Zhenjiang Li, Yong Yin
doaj   +1 more source

Calculating tumor trajectory and dose-of-the-day using cone-beam CT projections

open access: yes, 2015
Purpose: Cone-beam CT (CBCT) projection images provide anatomical data in real-time over several respiratory cycles, forming a comprehensive picture of tumor movement.
Jones, Bernard L.   +2 more
core   +1 more source

Artificial neural network-statistical approach for PET volume analysis and classification [PDF]

open access: yes, 2012
Copyright © 2012 The Authors. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.This ...
Abbod, Maysam   +7 more
core   +4 more sources

Towards real-time motion estimation for MR-guided radiotherapy

open access: yes, 2023
The ultimate potential of the MR-linac is real-time adaptive MR-guided radiotherapy (aMRgRT), i.e. adapt the radiation plan in real-time according to real-time 3D motion estimates. One of the major technical roadblocks towards achieving this goal is the real-time 3D motion estimation. This thesis presents two new approaches in this context.
openaire   +2 more sources

Reprogramming tumor immune microenvironment by ultrasound‐responsive nanoplatforms for enhanced cancer immunotherapy

open access: yesBMEMat, EarlyView.
Ultrasound‐responsive nanoplatforms reprogram the tumor immune microenvironment by targeting tumor cells, immune cells, and non‐immune stromal cells to enhance the efficacy of cancer immunotherapy. Abstract Cancer immunotherapy represents a significant advancement in cancer treatment by enhancing the specific recognition and elimination of cancer cells.
Shilong Zhao   +4 more
wiley   +1 more source

Endovascular Stenting for Pulmonary Vein Stenosis Following Atrial Fibrillation Ablation: From Diagnosis to Intervention

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Pulmonary vein stenosis (PVS) is an uncommon but serious complication of atrial fibrillation (AF) ablation, often misinterpreted as primary pulmonary disease. Timely identification is essential to prevent irreversible injury and to guide appropriate referral for interventional management. Case Presentations Through the discussion of
Cristina Aurigemma   +14 more
wiley   +1 more source

Case report: Stereotactic MR-guided adaptive radiotherapy for inoperable urothelial carcinoma at the renal pelvis

open access: yesFrontiers in Oncology
We report the case of an 87-year-old woman with upper tract urothelial carcinoma at the left renal pelvis. She received stereotactic body radiotherapy of 35 Gy in five fractions for palliative treatment of hematuria that was delivered by a 1.5-T magnetic
Wajana Thaweerat, Pittaya Dankulchai
doaj   +1 more source

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