News | December 07, 2009

Diffusion Tensor Imaging Navigates Pediatric Brain Surgery

Diffusion tensor imaging increases ability to remove benign tumors in children.

December 4, 2009 - Operative plans for removing juvenile pilocytic astrocytoma, or JPA, tumors in the thalamus of the brain can be augmented with diffusion tensor imaging, or DTI, according to a new study published in last week's issue of the Journal of Neurosurgery: Pediatrics.

Operating on patients with deep-seated tumors such as JPA, a benign tumor most frequently observed in children and young adults in the thalamus, remains a neurosurgical challenge. Conventional imaging techniques, such as structural MRI, has helped to reveal major anatomical features of the brain, primary gray matter.

DTI, a variation of MRI, can help identify white matter, or nerve fiber bundles, using specific radio-frequency and magnetic field pulses to track the movement of water molecules of the brain. In most brain tissue, water molecules diffuse in all different directions. But they tend to diffuse along the length of axons, whose coating of white, fatty myelin holds them in. Scientists can create pictures of axons by analyzing the direction of water diffusion.

The sensitivity of DTI imaging allows for the visualization of nerve fiber bundles in the brain. This information can maximize the potential of completely removing the tumor, while avoiding damage to the fiber bundles that are directly related to motor functions of the patient.

“This study of six children with thalamic JPA showed that using advanced MRI technology can help identify distorted nerve fiber bundles around brain tumors,” said Jeffrey H. Wisoff, M.D., director of the Division of Pediatric Neurosurgery at NYU Langone Medical Center. “This allows an otherwise inoperable tumor to be completely removed which can hopefully lead to a cure.”

The co-authors of the study include Yaron Moshel, M.D., Ph.D., of the department of neurosurgery, David J. Monoky, M.D., clinical assistant professor in the department of radiology and Robert E. Elliott, M.D., in the department of neurosurgery at NYU Langone Medical Center.

For more information: www.communications.med.nyu.edu

Related Content

Washington University in St. Louis Begins Clinical Treatments With ViewRay MRIdian Linac
News | Image Guided Radiation Therapy (IGRT) | June 14, 2018
June 14, 2018 — The Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine in S
Reduced hippocampal volume on MRI

This figure shows reduced hippocampal volume over the course of 6 years as seen on progressive volumetric analysis and also coronal MRI evaluations (arrows).Progressive volume loss in the mesial temporal lobe on MRI is a characteristic imaging feature of AD. This patient was a case of Alzheimer’s Dementia.

 

News | Neuro Imaging | June 12, 2018
According to a UCLA Medical Center study, a new technology shows the potential to help doctors better determine when...
High Prevalence of Atherosclerosis Found in Lower Risk Patients
News | Magnetic Resonance Imaging (MRI) | June 08, 2018
Whole-body magnetic resonance angiography (MRA) found a surprisingly high prevalence of atherosclerosis in people...
Philips Receives FDA 510(k) for Ingenia Elition MR System
Technology | Magnetic Resonance Imaging (MRI) | June 07, 2018
Philips announced that it has received 510(k) clearance from the U.S. Food and Drug Administration (FDA) for its...
New Studies Highlight MRI Use for Prostate Cancer Screening and Management
News | Magnetic Resonance Imaging (MRI) | May 21, 2018
Three new studies presented at the 113th annual meeting of the American Urological Association (AUA) highlight the...
MRI "Glove" Provides New Look at Hand Anatomy

An experiment showed that a glove-shaped detector could yield images of bones, cartilage, and muscles interacting as a hand 'plays piano.' Traditionally, MRI had required patients to remain strictly motionless.Image courtesy of Nature Biomedical Engineering; Bei Zhang, Martijn Cloos, Daniel Sodickson

News | Magnetic Resonance Imaging (MRI) | May 17, 2018
A new kind of magnetic resonance imaging (MRI) component in the shape of a glove delivers the first clear images of...
FDA Clears Medic Vision's iQMR MRI Image Enhancement Technology

Image courtesy of Medic Vision Imaging Solutions

Technology | Magnetic Resonance Imaging (MRI) | May 15, 2018
May 15, 2018 — Medic Vision Imaging Solutions Ltd. announced that the U.S.
Impaired Brain Pathways May Cause Attention Problems After Stroke
News | Neuro Imaging | May 10, 2018
Damage to some of the pathways that carry information throughout the brain may be responsible for attention deficit in...
Functional MRI Assesses Crocodile Brain Listening to Classical Music

A research team from Ruhr-Universität Bochum (RUB) used functional MRI to assess the brain patterns of a Nile crocodile and determine what happens when the animal hears complex sounds. Image courtesy of Felix Ströckens, M.D./Proceedings of the Royal Society B: Biological Sciences

News | Magnetic Resonance Imaging (MRI) | May 08, 2018
May 8, 2018 — In a first, an international research team from the Department of Biopsychology at Ruhr-Universität Boc
7T MRI Provides Precise 3-D Maps of Brain Activity

fMRI of a patient with secondary glioblastoma (brain tumor). Functional localization was measured before surgery by means of a motor task (hand opening and closing). On the left, the uncorrected scan, on the right the result after dynamic image correction. Image courtesy of Quelle: MUW/ High Field MR Centre of Excellence

 

News | Magnetic Resonance Imaging (MRI) | May 03, 2018
With the support of the Austrian Science Fund FWF, researchers from Vienna have developed methods to improve functional...
Overlay Init