Browsing Radiotherapy and Imaging by issue date
Now showing items 761-780 of 1133
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Relationships between rectal and perirectal doses and rectal bleeding or tenesmus in pooled voxel-based analysis of 3 randomised phase III trials.
(ELSEVIER IRELAND LTD, 2020-09-01)BACKGROUND AND PURPOSE: This study aimed to identify anatomically-localised regions where planned radiotherapy dose is associated with gastrointestinal toxicities in healthy tissues throughout the pelvic anatomy. MATERIALS ... -
Diffusion model comparison identifies distinct tumor sub-regions and tracks treatment response.
(WILEY, 2020-09-01)PURPOSE: MRI biomarkers of tumor response to treatment are typically obtained from parameters derived from a model applied to pre-treatment and post-treatment data. However, as tumors are spatially and temporally heterogeneous, ... -
Delayed contrast dynamics as marker of regional impairment in pulmonary fibrosis using 5D MRI - a pilot study.
(BRITISH INST RADIOLOGY, 2020-09-01)OBJECTIVE: To analyse delayed contrast dynamics of fibrotic lesions in interstitial lung disease (ILD) using five dimensional (5D) MRI and to correlate contrast dynamics with disease severity. METHODS: 20 patients (mean ... -
Adult weight change and premenopausal breast cancer risk: A prospective pooled analysis of data from 628,463 women.
(WILEY, 2020-09-01)Early-adulthood body size is strongly inversely associated with risk of premenopausal breast cancer. It is unclear whether subsequent changes in weight affect risk. We pooled individual-level data from 17 prospective studies ... -
Variation of the apparent diffusion coefficient of skull bone marrow by age group, pubertal status, and gender in a pediatric population.
(SAGE PUBLICATIONS LTD, 2020-09-01)BACKGROUND: Bone marrow composition varies with stage of development. PURPOSE: To assess differences in apparent diffusion coefficient (ADC) derived from clivus bone marrow in healthy children by age, pubertal status, and ... -
Quantitative Dual-Isotope Planar Imaging of Thorium-227 and Radium-223 Using Defined Energy Windows.
(MARY ANN LIEBERT, INC, 2020-09-01)Introduction: Thorium-227 is an alpha-emitting radioisotope with potential therapeutic applications in targeted alpha therapy. Thorium-227 decays to Radium-223, which may have an independent biodistribution to that of the ... -
A Genetic Risk Score to Personalize Prostate Cancer Screening, Applied to Population Data.
(AMER ASSOC CANCER RESEARCH, 2020-09-01)BACKGROUND: A polygenic hazard score (PHS), the weighted sum of 54 SNP genotypes, was previously validated for association with clinically significant prostate cancer and for improved prostate cancer screening accuracy. ... -
Immune landscape, evolution, hypoxia-mediated viral mimicry pathways and therapeutic potential in molecular subtypes of pancreatic neuroendocrine tumours.
(BMJ PUBLISHING GROUP, 2020-09-03)OBJECTIVE: A comprehensive analysis of the immune landscape of pancreatic neuroendocrine tumours (PanNETs) was performed according to clinicopathological parameters and previously defined molecular subtypes to identify ... -
The MOMENTUM Study: An International Registry for the Evidence-Based Introduction of MR-Guided Adaptive Therapy.
(FRONTIERS MEDIA SA, 2020-09-07)Purpose: MR-guided Radiation Therapy (MRgRT) allows for high-precision radiotherapy under real-time MR visualization. This enables margin reduction and subsequent dose escalation which may lead to higher tumor control and ... -
Radioactive 3D printing for the production of molecular imaging phantoms.
(IOP Publishing Ltd, 2020-09-08)Quality control tests of molecular imaging systems are hampered by the complexity of phantom preparation. It is proposed that radioisotopes can be directly incorporated into photo-polymer resins. Use of the radio-polymer ... -
In vitro characterisation of ultrasound-induced heating effects in the mother and fetus: A clinical perspective.
(SAGE PUBLICATIONS LTD, 2020-09-14)INTRODUCTION: The quantification of heating effects during exposure to ultrasound is usually based on laboratory experiments in water and is assessed using extrapolated parameters such as the thermal index. In our study, ... -
PIVOT-10: Phase II study of bempegaldesleukin plus nivolumab in cisplatin-ineligible advanced urothelial cancer.
(FUTURE MEDICINE LTD, 2020-09-16)The choice of first-line therapy for patients with metastatic urothelial cancer (mUC) is based on cisplatin-eligibility and programmed death-ligand 1 (PD-L1) status. For patients with mUC who are ineligible for cisplatin ... -
Relationship of self-reported body size and shape with risk for prostate cancer: A UK case-control study.
(PUBLIC LIBRARY SCIENCE, 2020-09-17)INTRODUCTION: Previous evidence has suggested a relationship between male self-reported body size and the risk of developing prostate cancer. In this UK-wide case-control study, we have explored the possible association ... -
Phase I clinical trial repurposing all-trans retinoic acid as a stromal targeting agent for pancreatic cancer.
(NATURE RESEARCH, 2020-09-24)Pre-clinical models have shown that targeting pancreatic stellate cells with all-trans-retinoic-acid (ATRA) reprograms pancreatic stroma to suppress pancreatic ductal adenocarcinoma (PDAC) growth. Here, in a phase Ib, dose ... -
The use of germline genetic profiles to guide prostate cancer targeted screening and cancer care
(Institute of Cancer Research (University Of London), 2020-09-30)The genetic heritability of prostate cancer is contributed to by rarely occurring but high penetrant genetic variants, and moderate to commonly occurring variants conferring lower risks. Genome wide association studies and ... -
A Canadian approach to the regionalization of testis cancer: A review.
(2020-10)At the Canadian Testis Cancer Workshop, the rationale and feasibility of regionalization of testis cancer care were discussed. The two-day workshop involved urologists, medical and radiation oncologists, pathologists, ... -
Polygenic risk scores and breast and epithelial ovarian cancer risks for carriers of BRCA1 and BRCA2 pathogenic variants.
(ELSEVIER SCIENCE INC, 2020-10-01)PURPOSE: We assessed the associations between population-based polygenic risk scores (PRS) for breast (BC) or epithelial ovarian cancer (EOC) with cancer risks for BRCA1 and BRCA2 pathogenic variant carriers. METHODS: ... -
The effect of sample size on polygenic hazard models for prostate cancer.
(SPRINGERNATURE, 2020-10-01)We determined the effect of sample size on performance of polygenic hazard score (PHS) models in prostate cancer. Age and genotypes were obtained for 40,861 men from the PRACTICAL consortium. The dataset included 201,590 ... -
Prostate Cancer Risk by BRCA2 Genomic Regions.
(ELSEVIER, 2020-10-01)A BRCA2 prostate cancer cluster region (PCCR) was recently proposed (c.7914 to 3') wherein pathogenic variants (PVs) are associated with higher prostate cancer (PCa) risk than PVs elsewhere in the BRCA2 gene. Using a ... -
Talimogene Laherparepvec and Pembrolizumab in Recurrent or Metastatic Squamous Cell Carcinoma of the Head and Neck (MASTERKEY-232): A Multicenter, Phase 1b Study.
(AMER ASSOC CANCER RESEARCH, 2020-10-01)PURPOSE: The prognosis for patients with recurrent or metastatic head and neck squamous cell carcinoma (R/M HNSCC) is poor, and only a minority of patients benefit from checkpoint immunotherapy. Talimogene laherparepvec ...