Abstract:
OBJECTIVE:We have used diffusion tensor tractography (DTT) for the evaluation of the somatotopic organization of corticospinal tracts (CSTs) in the posterior limb of the internal capsule (PLIC) and cerebral peduncle (CP). MATERIALS AND METHODS:We imaged the brains of nine healthy right-handed subjects. We used a spin-echo echo-planar imaging (EPI) sequence with 12 diffusion-sensitized directions. DTT was calculated with an angular threshold of 35 degrees and a fractional anistropy (FA) threshold of 0.25. We determined the location of the CSTs by using two regions of interest (ROI) at expected areas of the pons and expected areas of the lateral half of the PLIC, in the left hemisphere of the brain. Fiber tracts crossing these two ROIs and the precentral gyrus (PCG) were defined as CSTs. Four new ROIs were then defined for the PCG, from the medial to lateral direction, as ROI 1 (medial) to ROI 4 (lateral). Finally, we defined each fiber tract of the CSTs between the pons and each ROI in the PCG by using two ROIs methods. RESULTS:In all subjects, the CSTs were organized along the long axis of the PLIC, and the hand fibers were located anterior to the foot fibers. The CSTs showed transverse orientation in the CP, and the hand fibers were located usually medial to the foot fibers. CONCLUSION:Corticospinal tracts are organized along the long axis of the PLIC and the horizontal direction of the CP.
journal_name
Korean J Radioljournal_title
Korean journal of radiologyauthors
Park JK,Kim BS,Choi G,Kim SH,Choi JC,Khang Hdoi
10.3348/kjr.2008.9.3.191subject
Has Abstractpub_date
2008-05-01 00:00:00pages
191-5issue
3eissn
1229-6929issn
2005-8330pii
2008v9n3p191journal_volume
9pub_type
杂志文章abstract:OBJECTIVE:While the prognostic factors of survival for patients with hepatocellular carcinoma (HCC) who underwent transarterial chemoembolization (TACE) are well known, the clinical significance of performing selective TACE for HCC patients has not been clearly documented. We tried to analyze the potential factors of d...
journal_title:Korean journal of radiology
pub_type: 杂志文章
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journal_title:Korean journal of radiology
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journal_title:Korean journal of radiology
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journal_title:Korean journal of radiology
pub_type: 杂志文章
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journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
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pub_type: 杂志文章
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更新日期:2017-07-01 00:00:00
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journal_title:Korean journal of radiology
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2006.7.3.199
更新日期:2006-07-01 00:00:00
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journal_title:Korean journal of radiology
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更新日期:2016-01-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
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更新日期:2007-03-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
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更新日期:2010-01-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2012.13.6.720
更新日期:2012-11-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
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更新日期:2008-07-01 00:00:00
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pub_type: 杂志文章
doi:10.3348/kjr.2014.15.3.356
更新日期:2014-05-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
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更新日期:2015-09-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2012-09-01 00:00:00
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pub_type: 杂志文章
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更新日期:2008-09-01 00:00:00
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journal_title:Korean journal of radiology
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doi:10.3348/kjr.2012.13.5.541
更新日期:2012-09-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
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更新日期:2018-09-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2018.0474
更新日期:2019-05-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2014.15.2.267
更新日期:2014-03-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2009.10.3.227
更新日期:2009-05-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2018.19.6.1089
更新日期:2018-11-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2015.16.3.604
更新日期:2015-05-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2012.13.4.476
更新日期:2012-07-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2013.14.6.869
更新日期:2013-11-01 00:00:00
abstract:OBJECTIVE:To evaluate the feasibility of texture analysis on non-contrast-enhanced T1 maps of cardiac magnetic resonance (CMR) imaging for the diagnosis of myocardial injury in acute myocardial infarction (MI). MATERIALS AND METHODS:This study included 68 patients (57 males and 11 females; mean age, 55.7 ± 10.5 years)...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2019.0969
更新日期:2020-11-30 00:00:00