Diffusion tensor imaging (DTI) of rodent brains in vivo using a 1.5T clinical MR scanner

2006 ◽  
Vol 23 (5) ◽  
pp. 747-751 ◽  
Author(s):  
Francis K.H. Lee ◽  
Ma-Rong Fang ◽  
Gregory E. Antonio ◽  
David K.W. Yeung ◽  
Edward T.Y. Chan ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Diffusion Tensor Imaging Dti

In vivo diffusion tensor imaging (DTI) of brain subdivisions and vocal pathways in songbirds

NeuroImage ◽  
2006 ◽  
Vol 29 (3) ◽  
pp. 754-763 ◽  
Author(s):  
Geert De Groof ◽  
Marleen Verhoye ◽  
Vincent Van Meir ◽  
Ilse Tindemans ◽  
Alexander Leemans ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Diffusion Tensor Imaging Dti

scholarly journals Is Diffusion Tensor Imaging-Guided Radiotherapy the New State-of-the-Art? A Review of the Current Literature and Technical Insights

2022 ◽  
Vol 12 (2) ◽  
pp. 816
Author(s):  
Jordan Colman ◽  
Laura Mancini ◽  
Spyros Manolopoulos ◽  
Meetakshi Gupta ◽  
Michael Kosmin ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Grey Matter ◽  
Diffusion Tensor ◽  
State Of The Art ◽  
Imaging Technique ◽  
Neurological Complications ◽  
Current Evidence ◽  
Structural Imaging ◽  
Diffusion Tensor Imaging Dti

Despite the increasing precision of radiotherapy delivery, it is still frequently associated with neurological complications. This is in part due to damage to eloquent white matter (WM) tracts, which is made more likely by the fact they cannot be visualised on standard structural imaging. WM is additionally more vulnerable than grey matter to radiation damage. Primary brain malignancies also are known to spread along the WM. Diffusion tensor imaging (DTI) is the only in vivo method of delineating WM tracts. DTI is an imaging technique that models the direction of diffusion and therefore can infer the orientation of WM fibres. This review article evaluates the current evidence for using DTI to guide intracranial radiotherapy and whether it constitutes a new state-of-the-art technique. We provide a basic overview of DTI and its known applications in radiotherapy, which include using tractography to reduce the radiation dose to eloquent WM tracts and using DTI to detect or predict tumoural spread. We evaluate the evidence for DTI-guided radiotherapy in gliomas, metastatic disease, and benign conditions, finding that the strongest evidence is for its use in arteriovenous malformations. However, the evidence is weak in other conditions due to a lack of case-controlled trials.

scholarly journals MR Parameter Map Suite: ITK Classes for Calculating Magnetic Resonance T2 and T1 Parameter Maps

2008 ◽  
Author(s):  
Don Bigler ◽  
Mark Meadowcroft ◽  
Xiaoyan Sun ◽  
Jeffrey Vesek ◽  
Alex Dresner ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Magnetic Resonance ◽  
Diffusion Tensor ◽  
Non Invasive ◽  
Mr Diffusion ◽  
Mr Diffusion Tensor Imaging ◽  
Diffusion Tensor Imaging Dti

This document describes a suite of new multi-threaded classes for calculating magnetic resonance (MR) T2 and T1 parameter maps implemented using the Insight Toolkit ITK (www.itk.org). Similar to MR diffusion tensor imaging (DTI), MR T2 and T1 parameter maps provide a non-invasive means for quantitatively measuring disease or pathology in-vivo. Included in the suite are classes for reading proprietary Bruker 2dseq and Philips PAR/REC images and example programs and data for validating the new classes.

scholarly journals Diffusion Tensor Imaging for In Vivo Detection of Degenerated Optic Radiation

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Georg Michelson ◽  
Tobias Engelhorn ◽  
Simone Waerntges ◽  
Arnd Doerfler
Keyword(s):  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Open Angle Glaucoma ◽  
Optic Radiation ◽  
New Approach ◽  
Transneuronal Degeneration ◽  
In Vivo Detection ◽  
Magnetic Resonance Imaging Mri ◽  
Diffusion Tensor Imaging Dti

Glaucomatous optic nerve atrophy may continue to the linked optic radiation by transneuronal degeneration, as described in animal models of glaucoma. In vivo visualization of the visual pathway represents a new challenge in the field of ophthalmology. We present a new approach for illustration of the optic radiation by diffusion tensor imaging (DTI) based on magnetic resonance imaging (MRI). The DTI was established by use of a 3T high-field scanner. The case of a patient with primary open-angle glaucoma is opposed to this one of a healthy subject to demonstrate the visible rarefication of the optic radiation. The goal was to introduce the technique of the DTI also in ophthalmology and to demonstrate that it may be useful to judge glaucoma-related differences.

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