نتایج جستجو برای: glioblastoma multiform radiomics

تعداد نتایج: 27305  

2015
Alexander Wong Audrey G. Chung Devinder Kumar Mohammad Javad Shafiee

In this paper, we describe the underlying methodology behind discovery radiomics, where the ultimate goal is to discover customized, abstract radiomic feature models directly from the wealth of medical imaging data to better capture highly unique tumor traits beyond what can be captured using hand-crafted radiomic feature models. We further explore the current state-of-the-art in discovery radi...

Brain tumors are the most common solid tumors in childhood. Glioblastoma multiform (GBM) is the second most common primary brain tumor in adults. It usually affects the cerebral hemispheres of adults at the 6th or 7th decade of life. In comparison to adult population, GBM is rare in pediatrics and accounts for approximately 3% of all pediatric brain tumors. Pediatric glioblastoma was defined as...

Abdol-Azim Sarli Fahimeh Moradi Fatemeh Baghbani Javad Zavar-Reza Majid Mojarrad Mansur Heidari Mohammad Hasanzadeh Nazarabadi Mohammad Soukhtanloo Reza Raoofian, Sahar Shekouhi Seyed Morteza Afsharzadeh Tayebeh Hamzehloei

  Objective(s): Hypoxia is a serious challenge for treatment of solid tumors. This condition has been manifested to exert significant therapeutic effects on glioblastoma multiform or (WHO) astrocytoma grade IV. Hypoxia contributes numerous changes in cellular mechanisms such as angiogenesis, metastasis and apoptosis evasion. Furthermore, in molecular level, hypoxia can cause induction of DNA br...

Journal: :iranian journal of basic medical sciences 0
fariba sadeghi fazel health management department, quality assurance deputy, razi vaccine & serum research institute, karaj, iran mahnaz haddadi cancer models research center, cancer institute of iran, tehran university of medical sciences, tehran, iran alireza khoshnevisan department of neurosurgery, shariati hospital, tehran university of medical sciences, tehran, iran samad muhammadnejad research center for molecular and cellular imaging, tehran university of medical sciences, tehran, iran ahad muhammadnejad cancer models research center, cancer institute of iran, tehran university of medical sciences, tehran, iran zohreh mazaheri anatomy department, school of medicine, tarbiat modares university, tehran, iran

objective(s):p in vitro chemosensitivity and resistance assays (csras) are a promising tool for personalized treatment of glioblastoma multiform (gbm). these assays require a minimum of 1 to 2 g of tumor specimen for testing, but this amount is not always accessible. we aimed to assess the feasibility and validity of utilizing stereotactic biopsies of gbm in csras. materials and methods: single...

2017
Fu-Sheng Ouyang Bao-Liang Guo Bin Zhang Yu-Hao Dong Lu Zhang Xiao-Kai Mo Wen-Hui Huang Shui-Xing Zhang Qiu-Gen Hu

There is no consensus on specific prognostic biomarkers potentially improving survival of nasopharyngeal carcinoma (NPC), especially in advanced-stage disease. The prognostic value of MRI-based radiomics signature is unclear. A total of 970 quantitative features were extracted from the tumor of 100 untreated NPC patients (stage III-IVb) (discovery set: n = 70, validation set: n = 30). We then a...

Objective(s):P In vitro chemosensitivity and resistance assays (CSRAs) are a promising tool for personalized treatment of glioblastoma multiform (GBM). These assays require a minimum of 1 to 2 g of tumor specimen for testing, but this amount is not always accessible. We aimed to assess the feasibility and validity of utilizing stereotactic biopsies of GBM in CSRAs. Materials and Methods: Single...

Daryoush Hamidi Alamdari, Elnaz Farajirad, Kazem Ghaemi, Mehdi Khajavi, Mohammad Farajirad, Mohammad Hassan Arjmand,

Background & Aim: The most common primary brain tumors of the central nervous system are gliomas. Among a number of different biomolecular events, a strong relation between oxidative stress pathways and the development of this cancer has been proved. Oxidative stress (OS) is the consequence of an imbalance between pro-oxidants and antioxidants towards pro-oxidants. The pro-oxidants cause lipid ...

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