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Puslapis 1 nuo 39760 rezultatus
Genetically altered fields in head and neck cancer and second field tumor.
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Prisijungti Registracija
The concept of field cancerization has been ever changing since its first description by Slaughter et al in 1953. Field cancerization explains the mechanisms by which second primary tumors (SPTs) develop. SPTs are the tumors, which develop in the oral cavity in succession to the primary malignant
High Tangent Radiation Therapy With Field-in-Field Technique for Breast Cancer.
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OBJECTIVE
We evaluated whether the field-in-field (FIF) technique improves the homogeneity of the target in high tangent radiation therapy (HTRT).
METHODS
This study included 30 patients. In total, 3 HTRT plans were created: 1 with conventional opposed fields (Conv-p), 1 with the FIF technique
[Optimal lymphadenectomy for thoracic esophageal cancer: three-field or modified two-field lymphadenectomy].
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Differences in operative procedure and knowledge of esophageal cancer exist among surgeons from different countries and regions. There is controversy in the surgical treatment of esophageal cancer, especially in the extent of lymphadenectomy. Until now, results of the three-field lymphadenectomy and
Three-field or two-field resection for thoracic esophageal cancer: a meta-analysis.
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BACKGROUND
There have been many controversies about the optimal extent of lymphadenectomy for thoracic esophageal cancer, whether three-field lymphadenectomy is superior to two-field lymphadenectomy with respect to the 5-year survival rate and perioperative morbidities and mortality.
METHODS
A
Dosimetric comparison of intensity modulated radiotherapy isocentric field plans and field in field (FIF) forward plans in the treatment of breast cancer.
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The present study is aimed at comparing the planning and delivery efficiency between three-dimensional conformal radiotherapy (3D-CRT), field-in-field, forward planned, intensity modulated radiotherapy (FIF-FP-IMRT), and inverse planned intensity modulated radiotherapy (IP-IMRT). Treatment plans of
Optimization of tumor treating fields using singular value decomposition and minimization of field anisotropy.
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Tumor treating fields (TTFields) are increasingly used to treat newly diagnosed and recurrent glioblastoma (GBM). Recently, the authors proposed a new and comprehensive method for efficacy estimation based on singular value decomposition of the sequential field distributions. The method accounts for
Etiologic field effect: reappraisal of the field effect concept in cancer predisposition and progression.
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The term 'field effect' (also known as field defect, field cancerization, or field carcinogenesis) has been used to describe a field of cellular and molecular alteration, which predisposes to the development of neoplasms within that territory. We explore an expanded, integrative concept, 'etiologic
Field distribution and DNA transport in solid tumors during electric field-mediated gene delivery.
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Prisijungti Registracija
Gene therapy has a great potential in cancer treatment. However, the efficacy of cancer gene therapy is currently limited by the lack of a safe and efficient means to deliver therapeutic genes into the nucleus of tumor cells. One method under investigation for improving local gene delivery is based
Three-field vs two-field lymph node dissection for esophageal cancer: a meta-analysis.
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OBJECTIVE
To assess the effects of 3-field lymphadenectomy for esophageal carcinoma.
METHODS
We conducted a computerized literature search of the PubMed, Cochrane Controlled Trials Register, and EMBASE databases from their inception to present. Randomized controlled trials (RCTs) or observational
Tumor Treating Fields Technology: Alternating Electric Field Therapy for the Treatment of Solid Tumors.
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To provide an overview of Tumor Treating Fields (TTFields) and the Optune device in the treatment of glioblastoma multiforme as well as discuss the evolution of TTFields technology for the treatment of different tumor types.
Peer reviewed publications, proceedings, and Internet-based
Power-frequency fields and cancer.
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There is a widespread public perception that exposure to "EMF" is linked to cancer. This concern stems largely from a few epidemiological studies that appear to show an association between cancer and residence near power lines. However, the epidemiological evidence for such a link falls far short of
Electromagnetic-field exposure and cancer.
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Electromagnetic fields are a ubiquitous part of man's environment. Natural sources of energy have been present, and possibly have contributed to the processes of the evolution of living forms. In very recent time, however, exploitation of the properties of the electromagnetic spectrum, has added
Electromagnetic fields and cancer risks.
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Cancer was first associated with exposure to electromagnetic fields (EMF) in 1979 when Wertheimer and Leeper reported that children dying from cancer resided more often in homes believed to be exposed to higher EMF than did healthy control children. The risks were as high as 2.23 (1.56-3.18) 3.09
Electromagnetic fields: a cancer promoter?
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This paper discusses some of the current questions observed in updated research analyzing the association of electromagnetic fields (EMF) exposure and cancer. It reveals the predominant efforts toward obtaining more accurate levels of EMF exposure as a crucial key to gain knowledge about that
Cancer clonality and field theory.
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We discuss a "genomic" mechanism capable of yielding clonal malignancies (e.g. hemopoietic leukemias) without the prerequisite of multiple or single mutations. This hypothetical mechanism is based upon the anachronistic (illegal) expression of a special gene P, where P stands for "potential". P. is
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