Active clinical trials for "Brain Neoplasms"

This study looks at dose escalation for five fraction stereotactic radiotherapy for patients diagnosed with brain metastases with tumors 2.1-4.0 cm in diameter or 4.1-6.0 cm in diameter.

The aim of this protocol is to refine the accuracy of proton beam therapy (PT) by the use of dual energy computed tomography (DECT), in conjunction with novel iterative image reconstruction algorithms, to more precisely determine the tissue properties through which the proton beam path travels.

This is a prospective, single arm, phase II trial to determine the local control at 6 months utilizing pre-operative stereotactic radiosurgery followed by surgery within 1 - 4 days in subjects with a diagnosis of 1-4 brain metastases and with an indication for surgical resection of at least one brain metastasis at the discretion of a neurosurgeon.

Stereotactic radiation therapy is an important and common method of treating brain metastases in patients with malignant disease. Today, however, there are no methods available to determine the metastasis' radiation sensitivity in advance and treatment responses can only be seen by changing of the size of the metastasis on conventional X-ray examinations, computed tomography (CT) and magnetic resonance imaging (MRI). Changes in the size of the metastases is something that is often seen weeks / months after treatment is completed. At Lund University Hospital, a new imaging technique, diffusional variance decomposition (DIVIDE), has now been developed. With this technique, the scatter in isotropic and anisotropic diffusion can be measured for each measuring point, which provides significantly more information about the properties of the tissue compared to current methods.

This clinical trial studies the use of 7-Tesla (7T)and 3T magnetic resonance imaging (MRI) in detecting brain diseases. 7T MRI has increased detection sensitivity, including more accurate lesion delineation, higher inter-rater agreement. Diagnostic procedures such as 7T MRI may help ultimately improved diagnostic and therapies confidence to inform decision making than standard 3T MRI.

The objectives of the study are (1) to evaluate the feasibility of using a combined spin- and gradient- echo (SAGE) sequence in dynamic susceptibility contrast magnetic resonance imaging (DSC MRI) and (2) to determine quantitative estimates of vessel density and size to differentiate between areas of radiation necrosis and tumor recurrence.

The purpose of the study is to determine in brain metastases and according to feasibility in liquid biopsies: Molecular alterations including in particular mutations, amplifications, Copy number gene variants and fusion transcripts identified by high-throughput sequencing; The rate of variation either in gain or in loss of expression of the different messenger Ribonucleic Acids by analysis of the transcriptome; Epigenetic alterations by methylation of deoxyribonucleic acid clusters by methylome chips.

This pilot clinical trial studies how well electrocorticography works in mapping functional brain areas during surgery in patients with brain tumors. Using a larger than the standard mapping grid currently used during brain tumor surgery or a high-definition grid for electrocorticogram brain mapping may help doctors to better identify which areas of the brain are active during specific limb movement and speech during surgery in patients with brain tumors.

This pilot study investigates whether advanced diffusion-weighted MRI (ADW-MRI) can differentiate between true tumor progression (TP) and a pseudoprogression (PsP) in patients with glioblastoma (GBM) or brain metastases.

Stereotactic radiosurgery or hypofractionated radiotherapy of the resection cavity after metastasectomy in cancer patients with brain metastases