نتایج جستجو برای: نظریه srs
تعداد نتایج: 37731 فیلتر نتایج به سال:
Glioblastoma (GBM) is the most common primary malignant brain tumor in adults and one of the most aggressive of all human cancers. GBM tumors are highly infiltrative and relatively resistant to conventional therapies. Aggressive management of GBM using a combination of surgical resection, followed by fractionated radiotherapy and chemotherapy has been shown to improve overall survival; however,...
Stereotactic radiosurgery (SRS) can be used as a salvage treatment in selected patients with recurrent brain metastases after previous brain radiation. We report the case of a patient with metastatic lung adenocarcinoma who experienced recurrence numerous times in the brain and was successfully treated each time with SRS. For this patient, brain imaging surveillance helped identify metastases e...
The U.S. Department of Energy's (USDOE) Savannah River Site (SRS) is a former nuclear weapon material production and current research facility adjacent to the Savannah River in South Carolina, USA. The purpose of this study was to determine the background radiocesium ((137)Cs) body burden (e.g., from global fallout) for white-tailed deer (Odocoileus virginianus) inhabiting the SRS. To different...
BACKGROUND Systematic reviews (SRs) should be up to date to maintain their importance in informing healthcare policy and practice. However, little guidance is available about when and how to update SRs. Moreover, the updating policies and practices of organizations that commission or produce SRs are unclear. METHODOLOGY/PRINCIPAL FINDINGS The objective was to describe the updating practices a...
BACKGROUND Synthesizing research evidence using systematic and rigorous methods has become a key feature of evidence-based medicine and knowledge translation. Systematic reviews (SRs) may or may not include a meta-analysis depending on the suitability of available data. They are often being criticised as 'secondary research' and denied the status of original research. Scientific journals play a...
OBJECTIVES Expressing treatment effects in relative terms yields larger numbers than expressions in absolute terms, affecting the judgment of the clinicians and patients regarding the treatment options. It is uncertain how authors of systematic reviews (SRs) absolute effect estimates are reported in. We therefore undertook a systematic survey to identify and describe the reporting and methods f...
This white paper will focus on trigeminal neuralgia (TN) with sections one though five (IV) comprising a general review of trigeminal neuralgia from eMedicine.com, more information can be found at http://emedicine.medscape.com/article/1145144-overview and http://emedicine.medscape.com/article/248933-overview. Section six (VI) will provide an overview of imaging associated with TN. Section seven...
A systematic review (SR) provides the best and most objective analysis of the existing evidence in a particular field. SRs and derived conclusions are essential for evidence-based strategies in medicine and evidence-based guidelines in clinical practice. The popularity of SRs has also increased markedly in the field of hepatology. However, although SRs are considered to provide a higher level o...
BACKGROUND Peritumoral edema is a recognized complication following stereotactic radiosurgery (SRS). OBJECTIVE To evaluate the risk of posttreatment peritumoral edema following SRS for intracranial meningiomas and determine predictive factors. METHODS Between 2002 and 2008, 173 evaluable patients underwent CyberKnife or Gamma Knife SRS for meningiomas. Eighty-four patients (49%) had prior s...
* Corresponding author. Tel.: +44 1483 686593; Fax: +44 1483 686581. Email: [email protected] Abstract This paper investigates replacement scheduling for non-repairable safety-related systems (SRS) with multiple components and states. The aim is to determine the cost-minimizing time for replacing SRS while meeting the required safety. Traditionally, such scheduling decisions are made without ...
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