Results 51 to 60 of about 42,043 (282)

The grid-dose-spreading algorithm for dose distribution calculation in heavy charged particle radiotherapy [PDF]

open access: yes, 2007
A new variant of the pencil-beam (PB) algorithm for dose distribution calculation for radiotherapy with protons and heavier ions, the grid-dose spreading (GDS) algorithm, is proposed.
Ahnesjö   +29 more
core   +3 more sources

Patient setup optimization for external conformal radiotherapy [PDF]

open access: yesJournal of Image Guided Surgery, 1995
The aim of conformal radiotherapy is to deliver precisely a specific dose of radiation to a planning target volume, concurrently radiating as little healthy tissue and organs as possible. This can be accomplished only with the accurate positioning of the patient with respect to the radiotherapy system.
J, Troccaz   +6 more
openaire   +2 more sources

Patient‐specific pharmacogenomics demonstrates xCT as predictive therapeutic target in colon cancer with possible implications in tumor connectivity

open access: yesMolecular Oncology, EarlyView.
This study integrates transcriptomic profiling of matched tumor and healthy tissues from 32 colorectal cancer patients with functional validation in patient‐derived organoids, revealing dysregulated metabolic programs driven by overexpressed xCT (SLC7A11) and SLC3A2, identifying an oncogenic cystine/glutamate transporter signature linked to ...
Marco Strecker   +16 more
wiley   +1 more source

Conformational radiotherapy of no metastatic prostate cancer: Experience of the radiation therapy department of EHS Oncology Emir Abdelkader of Oran

open access: yesJournal de la Faculté de Médecine d'Oran, 2022
Introduction - Over the last decades, prostate cancer has become a public health condition, due to its frequency and severity. The conformational radiotherapy constituted today the standard technique in the irradiation of non-metastatic prostate cancers
Lotfi TALEB   +4 more
doaj  

MRI-only based radiotherapy treatment planning for the rat brain on a Small Animal Radiation Research Platform (SARRP) [PDF]

open access: yes, 2015
Computed tomography (CT) is the standard imaging modality in radiation therapy treatment planning (RTP). However, magnetic resonance (MR) imaging provides superior soft tissue contrast, increasing the precision of target volume selection.
Descamps, Benedicte   +2 more
core   +2 more sources

Tumor and germline testing with next generation sequencing in epithelial ovarian cancer: a prospective paired comparison using an 18‐gene panel

open access: yesMolecular Oncology, EarlyView.
Genetic testing in epithelial ovarian cancer includes both germline and tumor‐testing. This approach often duplicates resources. The current prospective study assessed the feasibility of tumor‐first multigene testing by comparing tumor tissue with germline testing of peripheral blood using an 18‐gene NGS panel in 106 patients.
Elisabeth Spenard   +12 more
wiley   +1 more source

Concurrent Hypofractionated Three-dimensional Re-irradiation and Temozolomide in Recurrent Malignant Glioma

open access: yesMiddle East Journal of Cancer, 2012
Background: This study determines the efficacy and tolerability of hypofractionated three-dimensional conformal radiotherapy in conjunction with daily temozolomide in treatment of previously irradiated recurrent malignant glioma.Methods: We enrolled 21 ...
Doaa Ali Sharaf Eldeen   +3 more
doaj  

Salvage conformal radiotherapy for biochemical recurrent prostate cancer after radical prostatectomy

open access: yesInternational Brazilian Journal of Urology, 2006
OBJECTIVE: Assess the results of salvage conformal radiotherapy in patients with biochemical failure after radical prostatectomy and identify prognostic factors for biochemical recurrence and toxicity of the treatment.
Carlos R. Monti   +5 more
doaj   +1 more source

A prospective, comparative analysis of acute toxicity profile between three-dimensional conformal radiotherapy (3DCRT) and intensity-modulated radiotherapy (IMRT) in locally advanced head and neck cancer patients

open access: yesCancer Treatment and Research Communications, 2020
Introduction: The advances of modern radiotherapy have emerged with the development of conformal radiotherapy techniques, such as the three-dimensional conformal radiotherapy (3DCRT) and intensity-modulated radiotherapy (IMRT).
Nilesh Kucha   +7 more
doaj   +1 more source

Comparison of transabdominal ultrasound and electromagnetic transponders for prostate localization. [PDF]

open access: yes, 2010
The aim of this study is to compare two methodologies of prostate localization in a large cohort of patients. Daily prostate localization using B-mode ultrasound has been performed at the Nebraska Medical Center since 2000.
Enke, Charles A   +6 more
core   +2 more sources

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