نتایج جستجو برای: Functional MRI Brain tumor Treatment planning Radiation therapy

تعداد نتایج: 3314515  

Alireza Montazer abadi, Arman boroun Hamid Gholamhosseinian, Hossein Akbari_Lalimi Jamshid Jamali Kazem Anvari Shahrokh Naseri Sirus Nekooei

Introduction: This study was aimed to investigate the beneficial effects of functional magnetic resonance imaging (fMRI) data in treatment planning for patients with CNS tumors in order to decrease the injury of functional regions of the brain followed by increase in life quality and survival of patients. This study pursues a novel approach in planning for the treatment of brai...

Amir Nami Mehran Yarahmdi Sohaila Yazdani, Sohrab Sakinehpor

Introduction: Glioma is the most common type of primary brain tumor that originates from glial tissues. These types of tumors have a high degree of malignancy and poor prognosis and low survival rates. The evaluation response to treatment is essential to decide whether present treatment is adequate or need for alternative therapy. The aim of this study was to evaluate the resp...

2003
D. Rajasekar N. R. Datta R. K. Gupta P. K. Pradhan S. Ayyagari

This article examines the utility of integrating images from computed tomography (CT), magnetic resonance imaging (MRI), and single photon emission computed tomography (SPECT) for radiation treatment planning of brain tumors for dose escalation studies. The information obtained from these imaging modalities is complementary to each other and could provide anatomic (through CT and MRI) and metab...

Journal: :Expert review of anticancer therapy 2010
Benjamin D Kläsner Bernd J Krause Ambros J Beer Alexander Drzezga

" Precise tumor localization and exact delineation from surrounding healthy brain tissue is of the utmost importance for planning tumor resection and/or radiation therapy, as well as for assessment of tumor recurrence after primary therapy. " Approximately 1–2% of all tumors are brain tumors. Gliomas represent 45% of all brain tumors (50% being highly malignant), followed by meningiomas (27%), ...

Journal: : 2023

Geometric information obtained from MRI is widely used for various applications, including voxel-based morphometry brain volume measurement, radiation therapy planning, and MRI-guided therapy.

2012
Vasileios Askoxylakis Julien Dinkel Monika Eichinger Bram Stieltjes Gregor Sommer Ludwig G Strauss Antonia Dimitrakopoulou-Strauss Annette Kopp-Schneider Uwe Haberkorn Peter E Huber Marc Bischof Jürgen Debus Christian Thieke

BACKGROUND Radiotherapy, preferably combined with chemotherapy, is the treatment standard for locally advanced, unresectable non-small cell lung cancer (NSCLC). The tumor response to different therapy protocols is variable, with hypoxia known to be a major factor that negatively influences treatment effectiveness. Visualisation of tumor hypoxia prior to the use of modern radiation therapy strat...

Journal: :Cancer Imaging 2006
Guoguang Fan

In vivo proton magnetic resonance spectroscopy (1HMRS) can substantially improve the non-invasive categorization of human brain tumors, especially for gliomas. It provides greater information concerning tumor activity and characterization of the tumor tissue than is possible with MRI techniques alone. Moreover, 1HMRS may ultimately prove to be a highly beneficial modality in the post-irradiatio...

2017
Viren R. Amin Liangshou Wu Ronald A. Roberts Bruce Thompson Timothy Ryken Viren Amin Ron Roberts R. B. Thompson

Current HIFU challenges include amount of tissue that can be destroyed by a single exposure, the inability to treat through bone, difficulty in monitoring therapy in real‐time, and difficulty in planning the strategy before therapy. Technological advances such as multi‐transducer or array beam generator, instrumentation and image‐based guidance of HIFU treatment promise to overcome many of thes...

2015
James R. Fink Mark Muzi Melinda Peck Kenneth A. Krohn

Standard magnetic resonance imaging (MRI) and computed tomography are routinely employed for anatomic diagnosis in brain tumors. Pre-therapy planning and post-treatment response assessments rely heavily on gadolinium-enhanced MRI. Advanced MRI techniques and positron emission tomography (PET) imaging offer physiologic, metabolic or functional information about tumor biology that goes beyond the...

Journal: :iranian journal of radiation research 0
n.a. koonce department of radiation oncology, university of arkansas for medical sciences, usa x. chen department of radiation oncology, stanford university, usa e.g. moros department of radiation oncology, moffitt cancer center, tampa, fl, usa g. shafirstein department of otolaryngology, university of arkansas for medical sciences, usa p. corry department of radiation oncology, university of arkansas for medical sciences, usa r.j. griffin department of radiation oncology, university of arkansas for medical sciences, usa

background: the rationale was to develop an ablation approach to destroy regions of tumor resistant to radiation and thus reduce the time required for whole tumor ablation, while improving overall tumor control after radiotherapy. materials and methods: the system is composed of a micro positron emission tomography (mpet), 7t magnetic resonance imaging (mri), and a customized mri-compatible foc...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید