نتایج جستجو برای: brain tumors diagnosis
تعداد نتایج: 1055650 فیلتر نتایج به سال:
the incidence of brain neoplasm has been progressively increasing in recent years in the industrialized countries. one of the reasons for this increased incidence could be better access to health care and improved diagnosis in the industrialized countries. it also appears that caucasians have a higher incidence than blacks or hispanics or asians. a number of risk factors have been identified an...
Introduction: 99mTc-MIBI has been proposed for use as an imaging agent for various tumors, including breast cancer, lung cancer, lymphomas, melanomas and brain neoplastic lesions. Brain tumors are very common and radiotherapy being major part of treatment following surgery. After radiotherapy, deteriorating clinical status can be due to either radiation necrosis or recurrent tumor. Comput...
Automated segmentation and classification of biomedical images act as a vital part the diagnosis brain tumors (BT). A primary tumor analysis suggests quicker response from treatment that utilizes for improving patient survival rate. The location BTs huge medicinal database, obtained routine medical tasks with manual processes are higher cost together in effort time. An automatic recognition, pl...
OBJECTIVE Epidemiological studies have investigated the association between Parkinson disease (PD) occurrence and the risk of brain tumors, while the results remain controversial. We performed a meta-analysis to clarify the exact relationship between PD and brain tumors. METHODS A systematic literature search was conducted using PubMed, Embase, ScienceDirect and CBM (China Biology Medicine Di...
P rimary brain tumors are rare. As a consequence , oncology nurses may not be familiar with the spectrum of diagnoses within this group and the impact that diagnosis has on prognosis and treatment of these tumors. Although typically associated with a poor prognosis, recent advances have been made in the diagnosis and treatment for these tumors that generates great optimism for continued improve...
The main goal of brain tumor surgery is to maximize tumor resection while preserving brain function. However, existing imaging and surgical techniques do not offer the molecular information needed to delineate tumor boundaries. We have developed a system to rapidly analyze and classify brain tumors based on lipid information acquired by desorption electrospray ionization mass spectrometry (DESI...
Central nervous system primitive neuro-ectodermal tumors (CNS-PNETs), have recently been re-classified in the most recent 2016 WHO Classification into a standby catch all category, "CNS Embryonal Tumor, not otherwise specified" (CNS embryonal tumor, NOS) based on epigenetic, biologic and histopathologic criteria. CNS embryonal tumors (NOS) are a rare, histologically and molecularly heterogeneou...
Non-epithelial, benign extracranial neurogenic tumors of the nasal cavities are reported in the literature with extreme rarity. These tumors differ from the more common congenital gliomas, encephaloceles, etc. in that they sometimes are detached from the brain tissues. These tumors have intracranial origins. They are congenital or acquired and may involve any of the nerves inside the nose....
Primary intracranial tumors of the brain structures, including meninges, are rare with an overall five-year survival rate of 33.4%; they are collectively called primary brain tumors. Proven risk factors for these tumors include certain genetic syndromes and exposure to high-dose ionizing radiation. Primary brain tumors are classified by histopathologic criteria and immunohistochemical data. The...
The aim of the investigation was to assess the informativity of proton magnetic resonance spectroscopy (PMRS) data in differentiation of brain tumors and nonneoplastic diseases with similar signal characteristics on standard MRI scans, as well as glioma grade determination. Materials and Methods. We examined 45 patients aged from 25 to 56 years with suspected expansive process of brain using pr...
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