Motor outcome according to diffusion tensor tractography findings in the early stage of intracerebral hemorrhage

Cho, Sang Hyun; Kim, Seong Ho; Choi, Byung Yoon; Cho, Soo Ho; Kang, Jihoon; Lee, ChuHee; Byun, Woo Mok; Jang, Sung Ho

doi:10.1016/j.neulet.2007.04.052

Cited by 88 publications

(71 citation statements)

References 22 publications

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“…Recently, some DTI studies have reported that motor outcome could be predicted by using anatomic relationships between the stroke lesion and CST damage on DTT in patients with intracerebral hemorrhage, CR infarct, and lacunar infarcts. [15][16][17][18][19][20]35 Jang et al 17 demonstrated that DTT performed at an early stage of pontine infarct (mean DTT scanning, 15 days; range, 5-30 days) is useful for predicting motor outcome. Similarly, another study reported that the degree of CST involvement on DTT within 3 days of stroke onset was strongly correlated with the severity of motor deficit and functional recovery at 3 months in patients with an acute lenticulostriate infarct.…”

Section: Discussionmentioning

confidence: 99%

Acute Damage to the Posterior Limb of the Internal Capsule on Diffusion Tensor Tractography as an Early Imaging Predictor of Motor Outcome after Stroke

Puig¹,

Pedraza²,

Blasco³

et al. 2011

AJNR Am J Neuroradiol

151

124

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Section: Discussionmentioning

confidence: 99%

Acute Damage to the Posterior Limb of the Internal Capsule on Diffusion Tensor Tractography as an Early Imaging Predictor of Motor Outcome after Stroke

Puig¹,

Pedraza²,

Blasco³

et al. 2011

AJNR Am J Neuroradiol

151

124

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“…Despite promising studies using both qualitative and quantitative DT indices to predict neurological recovery in patients with ischemic and hemorrhagic stroke, 3,4,8,19 the role of DTI and tractography in predicting motor recovery following AVM hemorrhage warrants further study. The ability to predict preoperative motor recovery on the basis of CST integrity has important implications for therapeutic decision-making.…”

Section: Discussionmentioning

confidence: 99%

Corticospinal tract mapping in children with ruptured arteriovenous malformations using functionally guided diffusion-tensor imaging

Ellis¹,

Rutka²,

Kulkarni³

et al. 2012

PED

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Arteriovenous malformations (AVMs) can lead to distortion or reorganization of functional brain anatomy, making localization of eloquent white matter tracts challenging. To improve the accuracy of corticospinal tract (CST) mapping, recent studies have examined the use of functional imaging techniques to help localize cortical motor activations and use these as seed points to reconstruct CSTs using diffusion-tensor imaging (DTI). The authors examined the role of pretreatment functionally guided DTI CST mapping in 3 children with ruptured AVMs. In 2 patients, magnetoencephalography motor activations were adjacent to the nidus and/or hemorrhagic cavity. However, in 1 child, functional MRI motor activations were detected in both hemispheres, suggestive of partial transfer of cortical motor function. In all children, quantitative analysis showed that fractional anisotropy values and fiber density indices were reduced in the CSTs of the hemisphere harboring the AVM compared with the unaffected side. In 2 children, CST caliber was slightly diminished, corresponding to no motor deficit in 1 patient and a temporary motor deficit in the other. In contrast, 1 child demonstrated marked reduction and displacement of the CSTs, correlating with severe motor deficit. Preoperative motor tractography data were loaded onto the intraoperative neuronavigation platform to guide complete resection of the AVM in 2 cases without permanent neurological deficits. These preliminary results confirm the feasibility of CST mapping in children with ruptured AVMs using functionally guided DTI tractography. Prospective studies are needed to assess the full value of this technique in the risk stratification, prognosis, and multimodality management of pediatric AVMs.

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“…Clarification of the cause of motor weakness is essential for prognosis and for adoption of scientific strategies for successful rehabilitation [22][23][24][25][26]. Recovery following a stroke is typically classified into neurological recovery and functional recovery; functional recovery is influenced by the external environment, continuity of rehabilitation, and motivation, whereas neurological recovery varies according to stroke pathogenesis and lesion site [27].…”

Section: Correlation Between Brain Lesion and Motor Recoverymentioning

confidence: 99%

Prognosis and Recovery of Motor Function with Lesion–Symptom Mapping in Patients with Stroke

Lee

Lim

2017

Brain Neurorehabil

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Although studies have demonstrated that several specific brain lesions are related to the recovery and functional prognosis in patients with stroke, it still remained to be illusive. Modern imaging techniques make us possible to identify regions that are commonly related to specific deficit. Superimposing individual lesions to identify an area related to a particular function is based on the assumption that these functional modules are in the same location in different individuals. It is traditional to overlay plots using 'lesion subtraction.' Additionally, voxel-based lesion-symptom mapping (VLSM) can be used to determine relationships between behavioral measures and its neural correlates in the brain. VLSM estimates statistical parameters on a voxel-by-voxel basis by calculating the correlations between t-scores for tasks and treating voxels as subjects, allowing fairly high spatial precision. Understanding their relative merits with regard to specific brain lesions should be useful in planning rehabilitation strategies and will become an important part of neurorehabilitation.

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Motor outcome according to diffusion tensor tractography findings in the early stage of intracerebral hemorrhage

Cited by 88 publications

References 22 publications

Acute Damage to the Posterior Limb of the Internal Capsule on Diffusion Tensor Tractography as an Early Imaging Predictor of Motor Outcome after Stroke

Acute Damage to the Posterior Limb of the Internal Capsule on Diffusion Tensor Tractography as an Early Imaging Predictor of Motor Outcome after Stroke

Corticospinal tract mapping in children with ruptured arteriovenous malformations using functionally guided diffusion-tensor imaging

Prognosis and Recovery of Motor Function with Lesion–Symptom Mapping in Patients with Stroke

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