Role of diffusion tensor imaging in characterization and preoperative planning of brain neoplasms

Ibrahim, Ahmed S.; Gomaa, Mohsen; Sakr, Hossam Moussa; El-Zaher, Yosra Abd

doi:10.1016/j.ejrnm.2013.02.011

Cited by 14 publications

(20 citation statements)

References 16 publications

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“…Through linking voxel to voxel with the FACT algorithm, three-dimensional FA was then acquired. The fiber tracking termination threshold values for FA were less than 0.15 and for the trajectory angles between the ellipsoids greater than 27° [21].…”

Section: Data Processingmentioning

confidence: 88%

“…To get higher signal-to-noise ratio (SNR) and motion-free DTI, we used parallel imaging methods and single-shot spinecho echo-planar imaging (EPI). Depending on the section numbers the total time for imaging of DTI was 7-9 min, in addition to the standard MR imaging exam time [21].…”

Section: Mr Imaging Protocolmentioning

confidence: 99%

“…Thirty-two separate orientations represented diffusion weighting and the b value was 800 mm 2 /s. Other parameters for the imaging were echo time = 70 ms, repetition period = 6599-8280 ms, number of acquisitions = two [21].…”

Section: Acquisition Of Mr Imagesmentioning

confidence: 99%

See 2 more Smart Citations

Association between microstructural white matter abnormalities and cognitive functioning in patients with type 2 diabetes mellitus: a diffusion tensor imaging study

Osama

Khalil

Negm

et al. 2020

Egypt J Neurol Psychiatry Neurosurg

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Background Diffusion tensor imaging (DTI) technique is important for exploring more sensitive imaging-based biomarkers in prevention and early treatment of cognitive dysfunction induced by type 2 diabetes mellitus (DM). Objectives To predict early cognitive dysfunction and detection of microstructural white matter changes in patients with type 2 DM by diffusion tensor imaging. Patients and methods A case-control study included thirty patients aged ≥ 18 years old of both sexes with type 2 DM and 30 controls. All subjects underwent to Montreal Cognitive Assessment (MoCA) “Arabic version”: to detect mild cognitive impairment (MCI) and diffusion tensor imaging study (DTI). Results Mild cognitive impairment is related to type 2 DM (56.7% of diabetic group), reduced fractional anisotropy (FA) values, and elevated mean diffusivity (MD) values were related to cognitive impairment evaluated through Montreal Cognitive Assessment (MoCA) in patients with type 2 DM. Conclusion The integrity of the white matter measured using DTI vary in MCI diabetics compared with non-MCI diabetics. Such changes have major implications on the cognitive function.

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Section: Data Processingmentioning

confidence: 88%

Section: Mr Imaging Protocolmentioning

confidence: 99%

See 1 more Smart Citation

Association between microstructural white matter abnormalities and cognitive functioning in patients with type 2 diabetes mellitus: a diffusion tensor imaging study

Osama

Khalil

Negm

et al. 2020

Egypt J Neurol Psychiatry Neurosurg

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show abstract

“…With DTI-derived fiber tractography, white matter involvement by a tumor can be classified as displacement, infiltration or disruption, compared with the normal unaffected tract on the contralateral side [ 36 ]. Fiber tractography is critical not only for defining the effects of invasive gliomas on white matter tracts but also for demonstrating the relationships between white matter structures and the cerebral neoplasm.…”

Section: Reviewmentioning

confidence: 99%

Diffusion and perfusion weighted magnetic resonance imaging for tumor volume definition in radiotherapy of brain tumors

et al. 2016

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Accurate target volume delineation is crucial for the radiotherapy of tumors. Diffusion and perfusion magnetic resonance imaging (MRI) can provide functional information about brain tumors, and they are able to detect tumor volume and physiological changes beyond the lesions shown on conventional MRI. This review examines recent studies that utilized diffusion and perfusion MRI for tumor volume definition in radiotherapy of brain tumors, and it presents the opportunities and challenges in the integration of multimodal functional MRI into clinical practice. The results indicate that specialized and robust post-processing algorithms and tools are needed for the precise alignment of targets on the images, and comprehensive validations with more clinical data are important for the improvement of the correlation between histopathologic results and MRI parameter images.

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“…Aggressive tumors present restricted diffusion with low ADC values and tractography shows truncation and amputation of white matter tracts close to the lesion. [7][8][9] DSC detects changes of magnetic susceptibility in vessels and the surrounding tissues on dynamic contrast administration. DSC metrics and color maps showing relative cerebral blood volume (rCBV), relative cerebral blood flow, and mean transit time are reported useful in the differential diagnosis between low and high-grade tumors and between tumor recurrence and radiation necrosis.…”

Section: Introductionmentioning

confidence: 99%

Supratentorial Brain Tumors in Children

Zikou

Xydis

Alexiou

et al. 2016

J Pediatr Neuroradiol

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Brain tumors in children are the second most common type of pediatric tumors after leukemia and the most common occurring solid tumor. Brain tumors diagnosed during the first year of life have different features than those presenting later in childhood and are usually supratentorial. Magnetic resonance imaging is the modality of choice for the diagnosis and characterization of these tumors. Herewith, we provide a review of the imaging characteristics on conventional and advanced neuroimaging techniques of the most common supratentorial intracranial tumors in children.

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Role of diffusion tensor imaging in characterization and preoperative planning of brain neoplasms

Cited by 14 publications

References 16 publications

Association between microstructural white matter abnormalities and cognitive functioning in patients with type 2 diabetes mellitus: a diffusion tensor imaging study

Association between microstructural white matter abnormalities and cognitive functioning in patients with type 2 diabetes mellitus: a diffusion tensor imaging study

Diffusion and perfusion weighted magnetic resonance imaging for tumor volume definition in radiotherapy of brain tumors

Supratentorial Brain Tumors in Children

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