Arterial Spin Labeling Perfusion Magnetic Resonance (MR) Imaging in Pediatric Brain Tumors
The purpose of this study is to get information regarding the usefulness and accuracy of this new MRI technique - termed arterial spin labeling (ASL) - in the diagnosis of pediatric brain tumors.
The purpose of this study is to get information regarding the usefulness and accuracy of this new MRI technique - termed arterial spin labeling (ASL) - in the diagnosis of pediatric brain tumors. This technique can non-invasively measure the blood flow to the brain during MRI examination. Because aggressive brain tumors require new blood vessels and a high level of blood supply to support its growth, we believe the tumor blood flow measured using ASL is a reliable indicator of tumor grade. This information may be useful for doctors to make treatment decisions and to monitor patients' response to treatment.
Observational Model: Case-Only, Time Perspective: Prospective
The Children's Hospital of Philadelphia
Children's Hospital of Philadelphia
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00907244
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Cerebral Ventricle Neoplasms
Neoplasms located in the brain ventricles, including the two lateral, the third, and the fourth ventricle. Ventricular tumors may be primary (e.g., CHOROID PLEXUS NEOPLASMS and GLIOMA, SUBEPENDYMAL), metastasize from distant organs, or occur as extensions of locally invasive tumors from adjacent brain structures.
Neoplasms of the intracranial components of the central nervous system, including the cerebral hemispheres, basal ganglia, hypothalamus, thalamus, brain stem, and cerebellum. Brain neoplasms are subdivided into primary (originating from brain tissue) and secondary (i.e., metastatic) forms. Primary neoplasms are subdivided into benign and malignant forms. In general, brain tumors may also be classified by age of onset, histologic type, or presenting location in the brain.
A BRAIN-specific hyalectin that may play a role in terminally differentiating NEURONS. It is found highly overexpressed in primary BRAIN TUMORS and in experimental models of GLIOMA.
Intracranial tumors originating in the region of the brain inferior to the tentorium cerebelli, which contains the cerebellum, fourth ventricle, cerebellopontine angle, brain stem, and related structures. Primary tumors of this region are more frequent in children, and may present with ATAXIA; CRANIAL NERVE DISEASES; vomiting; HEADACHE; HYDROCEPHALUS; or other signs of neurologic dysfunction. Relatively frequent histologic subtypes include TERATOMA; MEDULLOBLASTOMA; GLIOBLASTOMA; ASTROCYTOMA; EPENDYMOMA; CRANIOPHARYNGIOMA; and choroid plexus papilloma (PAPILLOMA, CHOROID PLEXUS).
Rare mixed tumors of the brain and rarely the spinal cord which contain malignant neuroectodermal (glial) and mesenchymal components, including spindle-shaped fibrosarcoma cells. These tumors are highly aggressive and present primarily in adults as rapidly expanding mass lesions. They may arise in tissue that has been previously irradiated. (From Br J Neurosurg 1995 Apr;9(2):171-8)
The first phase of the study will investigate if there is increased uptake of [F-18]FDOPA in pediatric brain tumors when compared to normal brain tissue.
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