keyword
MENU ▼
Read by QxMD icon Read
search

adaptive radiotherapy

keyword
https://www.readbyqxmd.com/read/28919006/histology-of-non-small-cell-lung-cancer-predicts-the-response-to-stereotactic-body-radiotherapy
#1
Juliane Hörner-Rieber, Denise Bernhardt, Julian Dern, Laila König, Sebastian Adeberg, Angela Paul, Claus Peter Heussel, Jutta Kappes, Hans Hoffmann, Felix J P Herth, Jürgen Debus, Arne Warth, Stefan Rieken
BACKGROUND AND PURPOSE: To investigate the prognostic impact of different histological subtypes of non-small cell lung cancer (NSCLC) on outcome following stereotactic body radiotherapy (SBRT) for NSCLC patients. MATERIALS AND METHODS: We analyzed 126 consecutive patients with early-stage adenocarcinoma or squamous cell carcinoma treated with SBRT from 2004 to 2016. Adenocarcinoma patients were further sub-classified as high-risk or low-risk tumors. RESULTS: With a median follow-up time of 22months, 2-year overall survival (OS), local (LC), and distant control (DC) were 68%, 90% and 79%, respectively...
September 14, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28917247/the-optimism-surrounding-stereotactic-body-radiation-therapy-and-immunomodulation
#2
Hannah Tharmalingam, Peter J Hoskin
In recent years, rapidly evolving radiation techniques have enabled the precise delivery of very high doses of radiation to local targets with stereotactic ablative body radiotherapy (SABR). In addition to its direct cytotoxicity, radiation and in particular SABR has powerful immunomodulatory effects resulting in immunogenic cell death and potentiation of the anti-tumour immune response. However, due to the immunosuppressive nature of non-irradiated sites of metastases, radiotherapy alone is seldom sufficient to induce the systemic response required for distant tumour rejection...
September 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28914611/deep-convolutional-neural-network-with-transfer-learning-for-rectum-toxicity-prediction-in-cervical-cancer-radiotherapy-a-feasibility-study
#3
Xin Zhen, Jiawei Chen, Zichun Zhong, Brian Andrew Hrycushko, Linghong Zhou, Steve B Jiang, Kevin Albuquerque, Xuejun Gu
Better understanding of the dose-toxicity relationship is critical for safe dose escalation to improve local control in late-stage cervical cancer radiotherapy. In this study, we introduced a convolutional neural network (CNN) model to analyze rectum dose distribution and predict rectum toxicity. Forty-two cervical cancer patients treated with combined external beam radiotherapy (EBRT) and brachytherapy (BT) were retrospectively collected, including twelve toxicity patients and thirty non-toxicity patients...
September 15, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28912510/the-th1-th17-balance-dictates-the-fibrosis-response-in-murine-radiation-induced-lung-disease
#4
Alexandra Paun, Marie-Eve Bergeron, Christina K Haston
Radiotherapy can result in lung diseases pneumonitis or fibrosis dependent on patient susceptibility. Herein we used inbred and genetically altered mice to investigate whether the tissue adaptive immune response to radiation injury influences the development of radiation-induced lung disease. Six inbred mouse strains were exposed to 18 Gy whole thorax irradiation and upon respiratory distress strains prone to pneumonitis with fibrosis presented an increased pulmonary frequency of Thelper (Th)17 cells which was not evident in strains prone solely to pneumonitis...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28911065/development-of-an-integrated-electronic-platform-for-patient-self-report-and-management-of-adverse-events-during-cancer-treatment
#5
P Holch, L Warrington, L C A Bamforth, A Keding, L E Ziegler, K Absolom, C Hector, C Harley, O Johnson, G Hall, C Morris, G Velikova
Background: Significant adverse events (AE) during cancer therapy disrupt treatment and escalate to emergency admissions. Approaches to improve the timeliness and accuracy of AE reporting may improve safety and reduce health service costs. Reporting AE via patient reported outcomes (PROs), can improve clinician-patient communication and making data available to clinicians in 'real-time' using electronic PROs (ePROs) could potentially transform clinical practice by providing easily accessible records to guide treatment decisions...
September 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28890087/-therapeutic-innovations-in-radiation-oncology-for-localized-prostate-cancer
#6
G Créhange, L Cormier
Intensity-modulated radiation therapy, image-guided radiation therapy with fiducial markers and prostate brachytherapy allow the delivery of dose escalation for localized prostate cancer with very low rates of long-term toxicity and sequelae. Nowadays, modern radiotherapy techniques make it possible to shorten treatment time with hypofractionation, to better protect surrounding healthy tissues and to escalate the dose even further. Advances in radiotherapy are closely linked to advances in magnetic resonance imaging (MRI) and/or PET imaging...
September 7, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28875538/a-generalized-parametric-response-mapping-method-for-analysis-of-multi-parametric-imaging-a-feasibility-study-with-application-to-glioblastoma
#7
Anthony Lausch, Timothy Pok-Chi Yeung, Jeff Chen, Elton Law, Yong Wang, Benedetta Urbini, Filippo Donelli, Luigi Manco, Enrico Fainardi, Ting-Yim Lee, Eugene Wong
PURPOSE: Parametric response map (PRM) analysis of functional imaging has been shown to be an effective tool for early prediction of cancer treatment outcomes and may also be well-suited towards guiding personalized adaptive radiotherapy (RT) strategies such as sub-volume boosting. However, the PRM method was primarily designed for analysis of longitudinally acquired pairs of single-parameter image data. The purpose of this study was to demonstrate the feasibility of a generalized parametric response map analysis framework which enables analysis of multi-parametric data while maintaining the key advantages of the original PRM method...
September 6, 2017: Medical Physics
https://www.readbyqxmd.com/read/28872752/time-on-androgen-deprivation-therapy-and-adaptations-to-exercise-secondary-analysis-from-a-12-month-randomized-controlled-trial-in-men-with-prostate-cancer
#8
Dennis R Taaffe, Laurien M Buffart, Robert U Newton, Nigel Spry, James Denham, David Joseph, David Lamb, Suzanne K Chambers, Daniel A Galvão
OBJECTIVES: To explore if duration of prior exposure to androgen deprivation therapy (ADT) in men with prostate cancer (PCa) undertaking a yearlong exercise program moderates the exercise response on body composition and muscle performance. In addition, we explored the moderator effect of baseline testosterone, time since ADT, and baseline value of the outcome. PATIENTS AND METHODS: In a multicenter randomized controlled trial, 100 patients previously treated for either 6 months (short-term) or 18 months (long-term) ADT in combination with radiotherapy as part of the TROG 03...
September 5, 2017: BJU International
https://www.readbyqxmd.com/read/28871665/the-glasgow-prognostic-score-as-a-pre-transplant-risk-assessment-for-allogeneic-hematopoietic-cell-transplantation
#9
Yasuhiko Shibasaki, Tatsuya Suwabe, Takayuki Katagiri, Tomoyuki Tanaka, Hironori Kobayashi, Kyoko Fuse, Takashi Ushiki, Naoko Sato, Toshio Yano, Takashi Kuroha, Shigeo Hashimoto, Miwako Narita, Tatsuo Furukawa, Hirohito Sone, Masayoshi Masuko
Evaluation methods, such as scoring systems for predicting complications in advance, are necessary for determining the adaptation of allogeneic hematopoietic cell transplantation (HCT) and selecting appropriate conditioning regimens. The Hematopoietic Cell Transplantation-specific Comorbidity Index (HCT-CI), which is based on functions of main organs, is a useful tool for pre-transplant risk assessments and has been widely applied in determining treatment strategies for patients with hematological diseases...
September 4, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28869163/biologically-adapted-radiation-therapy
#10
Daniela Thorwarth
The aim of biologically adapted radiotherapy (RT) is to shape or paint the prescribed radiation dose according to biological properties of the tumor in order to increase local control rates in the future. Human tumors are known to present with an extremely heterogeneous tissue architecture leading to highly variable local cell densities and chaotic vascular structures leading to tumor hypoxia and regions of increased radiation resistance. The goal of biologically adapted RT or dose painting is to individually adapt the radiation dose to biological features of the tumor as non-invasively assessed with functional imaging in order to overcome increased radiation resistance...
August 28, 2017: Zeitschrift Für Medizinische Physik
https://www.readbyqxmd.com/read/28868253/relationships-between-regional-radiation-doses-and-cognitive-decline-in-children-treated-with-cranio-spinal-irradiation-for-posterior-fossa-tumors
#11
Elodie Doger de Speville, Charlotte Robert, Martin Perez-Guevara, Antoine Grigis, Stephanie Bolle, Clemence Pinaud, Christelle Dufour, Anne Beaudré, Virginie Kieffer, Audrey Longaud, Jacques Grill, Dominique Valteau-Couanet, Eric Deutsch, Dimitri Lefkopoulos, Catherine Chiron, Lucie Hertz-Pannier, Marion Noulhiane
Pediatric posterior fossa tumor (PFT) survivors who have been treated with cranial radiation therapy often suffer from cognitive impairments that might relate to IQ decline. Radiotherapy (RT) distinctly affects brain regions involved in different cognitive functions. However, the relative contribution of regional irradiation to the different cognitive impairments still remains unclear. We investigated the relationships between the changes in different cognitive scores and radiation dose distribution in 30 children treated for a PFT...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28864046/-radiotherapy-for-head-and-neck-squamous-cell-carcinoma-state-of-the-art-and-future-directions
#12
U Schick, F Huguet, Y Pointreau, O Pradier
Therapeutic principles of radiation therapy in head and neck carcinomas will be discussed in this review. Intensity-modulated radiotherapy with concomitant cisplatin should be standard. In case of contraindication to chemotherapy, cetuximab is an option, while hyperfractionation should be considered in patients unfit for concomitant treatment. Concomitant chemotherapy should be administered in the presence of extracapsular extensions and positive margins in the postoperative setting. Current research areas such as desescalation in human papillomavirus-positive tumours, adaptive radiotherapy, radiomics and immunotherapy will also be addressed...
August 29, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28861706/xerostomia-quality-of-life-scale-xeqols-questionnaire-validation-of-italian-version-in-head-and-neck-cancer-patients
#13
Luciana Lastrucci, Silvia Bertocci, Vittorio Bini, Simona Borghesi, Roberta De Majo, Andrea Rampini, Pietro Giovanni Gennari, Paola Pernici
AIM: To translate the Xerostomia Quality-of-Life Scale (XeQoLS) into Italian language (XeQoLS-IT). Xerostomia is the most relevant acute and late toxicity in patients with head and neck cancer treated with radiotherapy (RT). Patient-reported outcome (PRO) instruments are subjective report on patient perception of health status. The XeQoLS consists of 15 items and measures the impact of salivary gland dysfunction and xerostomia on the four major domains of oral health-related QoL. METHODS: The XeQoLS-IT was created through a linguistic validation multi-step process: forward translation (TF), backward translation (TB) and administration of the questionnaire to 35 Italian patients with head and neck cancer...
August 31, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28861702/simulation-of-facial-expressions-using-person-specific-semg-signals-controlling-a-biomechanical-face-model
#14
Merijn Eskes, Alfons J M Balm, Maarten J A van Alphen, Ludi E Smeele, Ian Stavness, Ferdinand van der Heijden
PURPOSE: Functional inoperability in advanced oral cancer is difficult to assess preoperatively. To assess functions of lips and tongue, biomechanical models are required. Apart from adjusting generic models to individual anatomy, muscle activation patterns (MAPs) driving patient-specific functional movements are necessary to predict remaining functional outcome. We aim to evaluate how volunteer-specific MAPs derived from surface electromyographic (sEMG) signals control a biomechanical face model...
August 31, 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28840770/predicting-tumor-hypoxia-in-non-small-cell-lung-cancer-by-combining-ct-fdg-pet-and-dynamic-contrast-enhanced-ct
#15
Aniek J G Even, Bart Reymen, Matthew D La Fontaine, Marco Das, Arthur Jochems, Felix M Mottaghy, José S A Belderbos, Dirk De Ruysscher, Philippe Lambin, Wouter van Elmpt
BACKGROUND: Most solid tumors contain inadequately oxygenated (i.e., hypoxic) regions, which tend to be more aggressive and treatment resistant. Hypoxia PET allows visualization of hypoxia and may enable treatment adaptation. However, hypoxia PET imaging is expensive, time-consuming and not widely available. We aimed to predict hypoxia levels in non-small cell lung cancer (NSCLC) using more easily available imaging modalities: FDG-PET/CT and dynamic contrast-enhanced CT (DCE-CT). MATERIAL AND METHODS: For 34 NSCLC patients, included in two clinical trials, hypoxia HX4-PET/CT, planning FDG-PET/CT and DCE-CT scans were acquired before radiotherapy...
August 25, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28839258/birc3-is-a-biomarker-of-mesenchymal-habitat-of-glioblastoma-and-a-mediator-of-survival-adaptation-in-hypoxia-driven-glioblastoma-habitats
#16
Dapeng Wang, Anders E Berglund, Rajappa S Kenchappa, Robert J MacAulay, James J Mulé, Arnold B Etame
Tumor hypoxia is an established facilitator of survival adaptation and mesenchymal transformation in glioblastoma (GBM). The underlying mechanisms that direct hypoxia-mediated survival in GBM habitats are unclear. We previously identified BIRC3 as a mediator of therapeutic resistance in GBM to standard temozolomide (TMZ) chemotherapy and radiotherapy (RT). Here we report that BIRC3 is a biomarker of the hypoxia-mediated adaptive mesenchymal phenotype of GBM. Specifically, in the TCGA dataset elevated BIRC3 gene expression was identified as a superior and selective biomarker of mesenchymal GBM versus neural, proneural and classical subtypes...
August 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28836991/modeling-dna%C3%A2-damage-induced-pneumopathy-in-mice-insight-from-danger-signaling-cascades
#17
REVIEW
Florian Wirsdörfer, Verena Jendrossek
Radiation-induced pneumonitis and fibrosis represent severe and dose-limiting side effects in the radiotherapy of thorax-associated neoplasms leading to decreased quality of life or - as a consequence of treatment with suboptimal radiation doses - to fatal outcomes by local recurrence or metastatic disease. It is assumed that the initial radiation-induced damage to the resident cells triggers a multifaceted damage-signalling cascade in irradiated normal tissues including a multifactorial secretory program. The resulting pro-inflammatory and pro-angiogenic microenvironment triggers a cascade of events that can lead within weeks to a pronounced lung inflammation (pneumonitis) or after months to excessive deposition of extracellular matrix molecules and tissue scarring (pulmonary fibrosis)...
August 24, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28835160/adaptive-radiotherapy-for-locally-advanced-non-small-cell-lung-cancer-dosimetric-gain-and-treatment-outcome-prediction
#18
Patrick Berkovic, Leen Paelinck, Akos Gulyban, Marc van Eijkeren, Veerle Surmont, Yolande Lievens, Katrien Vandecasteele
No abstract text is available yet for this article.
August 23, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28835025/-oral-maxillofacial-head-and-neck-tumor-and-holistic-integrative-medicine
#19
C P Zhang
The advance of clinical diagnosis and treatment in oral and maxillofacial-head and neck tumors has been through the process of specialization and multidisciplinary cooperation. In most cases, a single discipline cannot meet the requirements of diagnosis and treatment, which needs the cooperation of oral and maxillofacial surgery, otolaryngology and oncology approach and therapeutic method such as surgery, radiotherapy and chemotherapy. Holistic integrative medicine aims at integrating the most effective clinical practice experience and patients' individual situation and prognosis, establishing new medical mode conforming to the modern concept and fulfilling the medical system adapting to the specific characteristics of the diseases...
August 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/28833829/long-term-outcome-of-18-f-fluorodeoxyglucose-positron-emission-tomography-guided-dose-painting-for-head-and-neck-cancer-matched-case-control-study
#20
Dieter Berwouts, Indira Madani, Frédéric Duprez, AnaMaria Luiza Olteanu, Tom Vercauteren, Tom Boterberg, Philippe Deron, Katrien Bonte, Wouter Huvenne, Wilfried De Neve, Ingeborg Goethals
BACKGROUND: The purpose of this study was to report the long-term outcome of (18) F-fluorodeoxyglucose-positron emission tomography ((18) F-FDG-PET)-guided dose painting for head and neck cancer in comparison to conventional intensity-modulated radiotherapy (IMRT) in a matched case-control study. METHODS: Seventy-two patients with nonmetastatic head and neck cancer treated with dose painting were compared with 72 control patients matched on tumor site and T classification...
August 21, 2017: Head & Neck
keyword
keyword
52459
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"