scholarly journals Novel Proximal 14q Deletion: Clinical and Diffusion Tensor Imaging Tractography Findings in a Patient with Lissencephaly, Agenesis of the Corpus Callosum, and Septo-Optic Dysplasia

2011 ◽  
Vol 33 (2) ◽  
pp. E16-E18 ◽  
Author(s):  
E.K. Bravo ◽  
M.L. White ◽  
A.H. Olney ◽  
J.L. McAllister ◽  
Y.D. Zhang
Keyword(s):  
Diffusion Tensor Imaging ◽  
Corpus Callosum ◽  
Diffusion Tensor ◽  
And Diffusion ◽  
Diffusion Tensor Imaging Tractography

scholarly journals Prediction of recovery from supplementary motor area syndrome after brain tumor surgery: preoperative diffusion tensor tractography analysis and postoperative neurological clinical course

2018 ◽  
Vol 44 (6) ◽  
pp. E3 ◽  
Author(s):  
Kazunori Oda ◽  
Fumio Yamaguchi ◽  
Hiroyuki Enomoto ◽  
Tadashi Higuchi ◽  
Akio Morita
Keyword(s):  
Diffusion Tensor Imaging ◽  
Corpus Callosum ◽  
Supplementary Motor Area ◽  
Diffusion Tensor ◽  
Motor Area ◽  
Primary Motor Area ◽  
Sma Syndrome ◽  
Interhemispheric Connectivity ◽  
Recovery Group ◽  
Diffusion Tensor Imaging Tractography

OBJECTIVEPrevious studies have suggested a correlation between interhemispheric sensorimotor networks and recovery from supplementary motor area (SMA) syndrome. In the present study, the authors examined the hypothesis that interhemispheric connectivity of the primary motor cortex in one hemisphere with the contralateral SMA may be important in the recovery from SMA syndrome. Further, they posited that motor cortical fiber connectivity with the SMA is related to the severity of SMA syndrome.METHODSPatients referred to the authors’ neurological surgery department were retrospectively analyzed for this study. All patients with tumors involving the unilateral SMA region, without involvement of the primary motor area, and diagnosed with SMA syndrome in the postoperative period were eligible for inclusion. Preoperative diffusion tensor imaging tractography (DTT) was used to examine the number of fiber tracts (NFidx) connecting the contralateral SMA to the ipsilateral primary motor area via the corpus callosum. Complete neurological examination had been performed in all patients in the pre- and postoperative periods. All patients were divided into two groups: those who recovered from SMA syndrome in ≤ 7 days (early recovery group) and those who recovered in ≥ 8 days (late recovery group). Differences between the two groups were assessed using the Student t-test and the chi-square test.RESULTSEleven patients (10 men, 1 woman) were included in the study. All patients showed transient postoperative motor deficits because of SMA syndrome. Tractography data revealed NFidx from the contralateral SMA to the ipsilateral primary motor area via the corpus callosum. The mean tumor volume (early 27.87 vs late 50.91 cm3, p = 0.028) and mean NFidx (early 8923.16 vs late 4726.4, p = 0.002) were significantly different between the two groups. Fisher exact test showed a significant difference in the days of recovery from SMA syndrome between patients with an NFidx > 8000 and those with an NFidx < 8000.CONCLUSIONSDiffusion tensor imaging tractography may be useful for predicting the speed of recovery from SMA syndrome. To the authors’ knowledge, this is the first DTT study to identify interhemispheric connectivity of the SMA in patients with brain tumors.

The role of the corpus callosum in dichotic listening: A combined morphological and diffusion tensor imaging study.

2006 ◽  
Vol 20 (3) ◽  
pp. 272-279 ◽  
Author(s):  
René Westerhausen ◽  
Wolfgang Woerner ◽  
Frank Kreuder ◽  
Elisabeth Schweiger ◽  
Kenneth Hugdahl ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Corpus Callosum ◽  
Dichotic Listening ◽  
Diffusion Tensor ◽  
Imaging Study ◽  
And Diffusion ◽  
Diffusion Tensor Imaging Study

MAGNETIC RESONANCE AND DIFFUSION TENSOR IMAGING STUDY OF THE CORPUS CALLOSUM IN ADOLESCENT AND ADULT SCHIZOPHRENIA

2008 ◽  
Vol 102 (1-3) ◽  
pp. 78
Author(s):  
Emily Canfield ◽  
Monte Buchsbaum ◽  
Mehmet Haznedar ◽  
Eugene Wang ◽  
Randall Newmark ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Magnetic Resonance ◽  
Corpus Callosum ◽  
Diffusion Tensor ◽  
Imaging Study ◽  
And Diffusion ◽  
Diffusion Tensor Imaging Study
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