This page shows you your search results in order of date. This is page number 17.
Order by Relevance | Date
Total 26238 results found since Jan 2013.
Evaluation of a new radiochromic film dosimeter, Gafchomic EBT4, for VMAT, SABR and HDR treatment delivery verification
Phys Med Biol. 2023 Jul 27. doi: 10.1088/1361-6560/aceb48. Online ahead of print.ABSTRACTObjective
To evaluate a new film for radiotherapy dosimetry, Gafchromic EBT4, compared to the current EBT3. To evaluate dose-response and verify test cases in MV external beam and HDR brachytherapy.
Approach
Three lots (batches) of EBT4 and three lots of EBT3 films were calibrated at 6 MV over 0 to 1200 cGy range, using FilmQAPro software. Signal-to-noise of pixel value, reported dose, and factors affecting dosimetry accuracy were evaluated (rotation of the film at scanning, energy response and post-exposure dar...
Source: Physics in Medicine and Biology - July 27, 2023 Category: Physics Authors: Antony L Palmer David Nash Wojciech Polak Sarah Wilby Source Type: research
Reirradiation of head and neck squamous cell carcinomas: a pragmatic approach, part II: radiation technique and fractionations
ConclusionDifferent radiation techniques and fractionations can be used for a second course of radiotherapy in patients with recurrent/second primary tumor of head and neck region. Tumor characteristics as well as radiobiological considerations should be take into account to define the best reRT approach.
Source: La Radiologia Medica - July 27, 2023 Category: Radiology Source Type: research
Prospective randomised phase II trial evaluating adjuvant pelvic radiotherapy using either IMRT or 3-Dimensional planning for endometrial cancer
CONCLUSION: Although IMRT can reduce dose to normal tissue, in this study no benefit in acute GI or GU toxicity outcome was seen.PMID:37493622 | DOI:10.1080/0284186X.2023.2238555
Source: Acta Oncologica - July 26, 2023 Category: Cancer & Oncology Authors: Killian Nugent Darragh Browne Mary Dunne Lydia O Sullivan Aoife M Shannon Deepti Sharma Shirley Bradshaw Orla McArdle Osama Salib Naomi Lavan Charles Gillham Source Type: research
A linear optimization model for high dose rate brachytherapy using a novel distance metric
Conclusions: The proposed linear network-based optimization model efficiently generates more homogeneous high quality treatment plans for HDR-BT.PMID:37489861 | DOI:10.1088/1361-6560/acea55
Source: Physics in Medicine and Biology - July 25, 2023 Category: Physics Authors: Nasim Mirzavand Boroujeni Jean-Philippe P Richard David Sterling Christopher Wilke Source Type: research
Molecular Classification Predicts Response to Radiotherapy in the Randomized PORTEC-1 and PORTEC-2 Trials for Early-Stage Endometrioid Endometrial Cancer
CONCLUSION: The molecular classification of EC predicts response to radiotherapy in stage I EEC and may guide adjuvant treatment decisions. Omitting radiotherapy seems to be safe in POLEmut EC. The benefit of radiotherapy seems to be limited in MMRd EC. EBRT yields a significantly better locoregional recurrence-free survival than VBT or no adjuvant therapy in p53abn EC. VBT is the treatment of choice for NSMP EC as it is as effective as EBRT and significantly better than no adjuvant therapy for locoregional tumor control.PMID:37487144 | DOI:10.1200/JCO.23.00062
Source: Cancer Control - July 24, 2023 Category: Cancer & Oncology Authors: Nanda Horeweg Remi A Nout Ina M J ürgenliemk-Schulz Ludy C H W Lutgens Jan J Jobsen Marie A D Haverkort Jan Willem M Mens Annerie Slot Bastiaan G Wortman Stephanie M de Boer Ellen Stelloo Karen W Verhoeven-Adema Hein Putter Vincent T H B M Smit Tjalling Source Type: research
MR-guided HDR prostate brachytherapy with teleoperated steerable needles
J Robot Surg. 2023 Jul 22. doi: 10.1007/s11701-023-01676-x. Online ahead of print.ABSTRACTConformity of tumour volumes and dose plans in prostate brachytherapy (BT) can be constrained by unwanted needle deflections, needle access restrictions and visualisation limitations. This work validates the feasibility of teleoperated robotic control of an active steerable needle using magnetic resonance (MR) for guidance. With this system, perturbations can be counteracted and critical structures can be circumvented to access currently inaccessible areas. The system comprises of (1) a novel steerable needle, (2) the minimally invasi...
Source: Cancer Control - July 22, 2023 Category: Cancer & Oncology Authors: M de Vries M Wijntjes J Sikorski P Moreira N J van de Berg J J van den Dobbelsteen S Misra Source Type: research
Embedding expertise knowledge into inverse treatment planning for low-dose-rate brachytherapy of hepatic malignancies
CONCLUSION: The study proposes an innovative treatment planning system for low-dose-rate permanent seed brachytherapy for hepatic malignancies. We show that the generated treatment plans meet clinical requirement.PMID:37475484 | DOI:10.1002/mp.16627
Source: Health Physics - July 21, 2023 Category: Physics Authors: Jianjun Zhu Cheng Wang Sitong Teng Jian Lu Pengju Lyu Pujun Zhang Jun Xu Ligong Lu Gao-Jun Teng Source Type: research
Practical experience commissioning MRI-compatible tandem and ring applicators for use with the Bravos HDR afterloader
This study reiterated the requirement for careful commissioning of each applicator intended for clinical service considering the intended use and the planned clinical environment and work processes.PMID:37469228 | DOI:10.1002/acm2.14094
Source: Journal of Applied Clinical Medical Physics - July 20, 2023 Category: Physics Authors: Jessica M Fagerstrom Source Type: research
Argon plasma coagulation therapy in hemorrhagic radiation proctitis following pelvic radiation in gynecological malignancies
CONCLUSIONS: APC is an effective, safe, and well-tolerated treatment for rectal bleeding caused by chronic radiation proctitis. It should be considered as a first-line therapy for radiation proctitis.PMID:37470598 | DOI:10.4103/jcrt.JCRT_1364_21
Source: Cancer Control - July 20, 2023 Category: Cancer & Oncology Authors: Neeraj Jain Jerath Amitabh Mohan Sharma Ramita Sachdeva Kanchan Kaur Amandeep Sudan Meena Source Type: research
Practical experience commissioning MRI-compatible tandem and ring applicators for use with the Bravos HDR afterloader
This study reiterated the requirement for careful commissioning of each applicator intended for clinical service considering the intended use and the planned clinical environment and work processes.PMID:37469228 | DOI:10.1002/acm2.14094
Source: Journal of Applied Clinical Medical Physics - July 20, 2023 Category: Physics Authors: Jessica M Fagerstrom Source Type: research
