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Park BS, Lee DA, Lee H, Kim J, Ko J, Lee WH, Yi J, Park KM. Correlation of diffusion tensor tractography with obstructive sleep apnea severity. Brain Behav 2024; 14:e3541. [PMID: 38773829 PMCID: PMC11109523 DOI: 10.1002/brb3.3541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/28/2024] [Accepted: 04/28/2024] [Indexed: 05/24/2024] Open
Abstract
INTRODUCTION Using correlation tractography, this study aimed to find statistically significant correlations between white matter (WM) tracts in participants with obstructive sleep apnea (OSA) and OSA severity. We hypothesized that changes in certain WM tracts could be related to OSA severity. METHODS We enrolled 40 participants with OSA who underwent diffusion tensor imaging (DTI) using a 3.0 Tesla MRI scanner. Fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD), radial diffusivity (RD), and quantitative anisotropy (QA)-values were used in the connectometry analysis. The apnea-hypopnea index (AHI) is a representative measure of the severity of OSA. Diffusion MRI connectometry that was used to derive correlational tractography revealed changes in the values of FA, MD, AD, RD, and QA when correlated with the AHI. A false-discovery rate threshold of 0.05 was used to select tracts to conduct multiple corrections. RESULTS Connectometry analysis revealed that the AHI in participants with OSA was negatively correlated with FA values in WM tracts that included the cingulum, corpus callosum, cerebellum, inferior longitudinal fasciculus, fornices, thalamic radiations, inferior fronto-occipital fasciculus, superior and posterior corticostriatal tracts, medial lemnisci, and arcuate fasciculus. However, there were no statistically significant results in the WM tracts, in which FA values were positively correlated with the AHI. In addition, connectometry analysis did not reveal statistically significant results in WM tracts, in which MD, AD, RD, and QA values were positively or negatively correlated with the AHI. CONCLUSION Several WM tract changes were correlated with OSA severity. However, WM changes in OSA likely involve tissue edema and not neuronal changes, such as axonal loss. Connectometry analyses are valuable tools for detecting WM changes in sleep disorders.
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Affiliation(s)
- Bong Soo Park
- Departments of Internal Medicine, Haeundae Paik HospitalInje University College of MedicineBusanSouth Korea
| | - Dong Ah Lee
- Departments of Neurology, Haeundae Paik HospitalInje University College of MedicineBusanSouth Korea
| | - Ho‐Joon Lee
- Departments of Radiology, Haeundae Paik HospitalInje University College of MedicineBusanSouth Korea
| | - Jinseung Kim
- Department of Family Medicine, Busan Paik HospitalInje University College of MedicineBusanRepublic of Korea
| | - Junghae Ko
- Departments of Internal Medicine, Haeundae Paik HospitalInje University College of MedicineBusanSouth Korea
| | - Won Hee Lee
- Department of Neurosurgey, Busan Paik HospitalInje University College of MedicineBusanRepublic of Korea
| | - Jiyae Yi
- Departments of Internal Medicine, Haeundae Paik HospitalInje University College of MedicineBusanSouth Korea
| | - Kang Min Park
- Departments of Neurology, Haeundae Paik HospitalInje University College of MedicineBusanSouth Korea
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Park BS, Choi B, Heo CM, Lee YJ, Park S, Kim YW, Ko J, Lee DA, Park KM. The effects of the dialysis on the white matter tracts in patients with end-stage renal disease using differential tractography study. Sci Rep 2023; 13:20064. [PMID: 37973892 PMCID: PMC10654401 DOI: 10.1038/s41598-023-47533-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/14/2023] [Indexed: 11/19/2023] Open
Abstract
This study aimed to determine whether white matter tracts correlate with kidney function using correlation tractography, and to investigate the effects of dialysis on white matter tracts in patients with end-stage renal disease (ESRD) using differential tractography. Ten patients with ESRD, who had a glomerular filtration rate of < 15 mL/min/1.73 m2, were enrolled in this prospective study. Diffusion tensor imaging (DTI) was performed both before and after dialysis. We discovered that white matter tracts correlated with the estimated glomerular filtration rate based on pre- and post-dialysis DTI using correlation tractography and investigated the differences in the white matter tracts between pre- and post-dialysis DTI in patients with ESRD using differential tractography. Correlation tractography revealed no quantitative anisotropy of the white matter tracts that correlated with the estimated glomerular filtration rate in pre- and post-dialysis patients with ESRD. Differential tractography revealed significant differences in several white matter tracts, particularly the cingulum, thalamic radiation, corpus callosum, and superior longitudinal fasciculus, between pre- and post-dialysis DTI, which revealed increased diffusion density after dialysis. We demonstrated the significant effects of dialysis on several white matter tracts in patients with ESRD using differential tractography, which showed increased diffusion density after dialysis. In this study, we confirmed the effects of dialysis on brain structure, especially white matter tracts.
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Affiliation(s)
- Bong Soo Park
- Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Byeongo Choi
- Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Chang Min Heo
- Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Yoo Jin Lee
- Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Sihyung Park
- Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Yang Wook Kim
- Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Junghae Ko
- Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Dong Ah Lee
- Department of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Haeundae-ro 875, Haeundae-gu, Busan, 48108, South Korea
| | - Kang Min Park
- Department of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Haeundae-ro 875, Haeundae-gu, Busan, 48108, South Korea.
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Park KM, Kim KT, Lee DA, Cho YW. Correlation of Diffusion Tensor Tractography with Restless Legs Syndrome Severity. Brain Sci 2023; 13:1560. [PMID: 38002520 PMCID: PMC10670044 DOI: 10.3390/brainsci13111560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 10/31/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023] Open
Abstract
This prospective study investigated white matter tracts associated with restless legs syndrome (RLS) severity in 69 patients with primary RLS using correlational tractography based on diffusion tensor imaging. Fractional anisotropy (FA) and quantitative anisotropy (QA) were analyzed separately to understand white matter abnormalities in RLS patients. Connectometry analysis revealed positive correlations between RLS severity and FA values in various white matter tracts, including the left and right cerebellum, corpus callosum forceps minor and major, corpus callosum body, right cingulum, and frontoparietal tract. In addition, connectometry analysis revealed that the FA of the middle cerebellar peduncle, left inferior longitudinal fasciculus, left corticospinal tract, corpus callosum forceps minor, right cerebellum, left frontal aslant tract, left dentatorubrothalamic tract, right inferior longitudinal fasciculus, left corticostriatal tract superior, and left cingulum parahippocampoparietal tract was negatively correlated with RLS severity in patients with RLS. However, there were no significant correlations between QA values and RLS severity. It is implied that RLS symptoms may be potentially reversible with appropriate treatment. This study highlights the importance of considering white matter alterations in understanding the pathophysiology of RLS and in developing effective treatment strategies.
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Affiliation(s)
- Kang Min Park
- Department of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Busan 48108, Republic of Korea; (K.M.P.); (D.A.L.)
| | - Keun Tae Kim
- Department of Neurology, Keimyung University School of Medicine, Daegu 42601, Republic of Korea;
| | - Dong Ah Lee
- Department of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Busan 48108, Republic of Korea; (K.M.P.); (D.A.L.)
| | - Yong Won Cho
- Department of Neurology, Keimyung University School of Medicine, Daegu 42601, Republic of Korea;
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Huang SH, Li MJ, Yeh FC, Huang CX, Zhang HT, Liu J. Differential and correlational tractography as tract-based biomarkers in mild traumatic brain injury: A longitudinal MRI study. NMR IN BIOMEDICINE 2023; 36:e4991. [PMID: 37392139 DOI: 10.1002/nbm.4991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 07/03/2023]
Abstract
We evaluated the fiber bundles in mild traumatic brain injury (mTBI) patients using differential and correlational tractography in a longitudinal analysis. Diffusion MRI data were acquired in 34 mTBI patients at 7 days (acute stage) and 3 months or longer (chronic stage) after mTBI. Trail Making Test A (TMT-A) and Digital Symbol Substitution Test changes were used to evaluate the cognitive performance. Longitudinal correlational tractography showed decreased anisotropy in the corpus callosum during the chronic mTBI stage. The changes in anisotropy in the corpus callosum were significantly correlated with the changes in TMT-A (false discovery rate [FDR] = 0.000094). Individual longitudinal differential tractography found that anisotropy decreased in the corpus callosum in 30 mTBI patients. Group cross-sectional differential tractography found that anisotropy increased (FDR = 0.02) in white matter in the acute mTBI patients, while no changes occurred in the chronic mTBI patients. Our study confirms the feasibility of using correlational and differential tractography as tract-based monitoring biomarkers to evaluate the disease progress of mTBI, and indicates that normalized quantitative anisotropy could be used as a biomarker to monitor the injury and/or repairs of white matter in individual mTBI patients.
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Affiliation(s)
- Si-Hong Huang
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Meng-Jun Li
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Fang-Cheng Yeh
- Department of Neurological Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Bioengineering, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Chu-Xin Huang
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Hui-Ting Zhang
- MR Scientific Marketing, Siemens Healthineers Ltd., Wuhan, China
| | - Jun Liu
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
- Department of Radiology Quality Control Center, Changsha, China
- Clinical Research Center for Medical Imaging in Hunan Province, Changsha, China
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Kikuchi H, Jitsuishi T, Hirono S, Yamaguchi A, Iwadate Y. 2D and 3D structures of the whole-brain, directly visible from 100-micron slice 7TMRI images. INTERDISCIPLINARY NEUROSURGERY 2023. [DOI: 10.1016/j.inat.2023.101755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
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Li M, Zhang Z, Wu X, Wang X, Liu X, Liang J, Chen G, Feng Y, Li M. Tractography of the Stria Terminalis in the Human Brain. Clin Anat 2022; 35:383-391. [PMID: 35102603 DOI: 10.1002/ca.23843] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/24/2022] [Accepted: 01/26/2022] [Indexed: 11/08/2022]
Abstract
The aim of this study was to investigate the trajectory of the stria terminalis and develop a protocol for mapping the stria terminalis using multi-shell diffusion images based tractography. The stria terminalis was reconstructed by combining one region of interest at the amygdala with another region of interest at the bed nucleus of stria terminalis. In addition, one region of avoidance was placed on the fornix at the interventricular foramen and another was set at the anterior perforated substance. The fiber-tracking protocol was tested in a Human Connectome Project-842 template, 35 healthy subjects from Massachusetts General Hospital, and 20 healthy subjects from the Human Connectome Project using generalized q-sampling imaging based tractography. The stria terminalis was reconstructed in the Human Connectome Project-842 template, 35 Massachusetts General Hospital healthy subjects, and 20 Human Connectome Project healthy subjects with our protocol. The stria terminalis originated from the amygdala and travelled parallel to the fornix. Then, the stria terminalis followed a C-shaped trajectory around the inferior, posterior, and dorsal surfaces of the thalamus before projecting to the bed nucleus of stria terminalis between the thalamus and caudate nucleus. There were no significant differences in the quantitative anisotropy and fractional anisotropy values between the left and right stria terminalis. The stria terminalis was accurately visualized across subjects using multi-shell diffusion images through generalized q-sampling imaging based tractography. This method could be an important tool for the reconstruction and evaluation of the stria terminalis in various neurological disorders. One Sentence Summary The visualizetion of the stria terminalis through the multi-shell diffusion images using generalized q-sampling imaging based tractography.
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Affiliation(s)
- Mengjun Li
- Department of Neurosurgery, Samii Clinical Neuroanatomy Research & Education Center, Capital Medical University Xuanwu Hospital, China International Neuroscience Institute (China-INI), Beijing, China
| | - Zhiping Zhang
- Department of Neurosurgery, Samii Clinical Neuroanatomy Research & Education Center, Capital Medical University Xuanwu Hospital, China International Neuroscience Institute (China-INI), Beijing, China
| | - Xiaolong Wu
- Department of Neurosurgery, Samii Clinical Neuroanatomy Research & Education Center, Capital Medical University Xuanwu Hospital, China International Neuroscience Institute (China-INI), Beijing, China
| | - Xu Wang
- Department of Neurosurgery, Samii Clinical Neuroanatomy Research & Education Center, Capital Medical University Xuanwu Hospital, China International Neuroscience Institute (China-INI), Beijing, China
| | - Xiaohai Liu
- Department of Neurosurgery, Samii Clinical Neuroanatomy Research & Education Center, Capital Medical University Xuanwu Hospital, China International Neuroscience Institute (China-INI), Beijing, China
| | - Jiantao Liang
- Department of Neurosurgery, Samii Clinical Neuroanatomy Research & Education Center, Capital Medical University Xuanwu Hospital, China International Neuroscience Institute (China-INI), Beijing, China
| | - Ge Chen
- Department of Neurosurgery, Samii Clinical Neuroanatomy Research & Education Center, Capital Medical University Xuanwu Hospital, China International Neuroscience Institute (China-INI), Beijing, China
| | - Yuanjing Feng
- Institute of Information Processing and Automation, College of Information Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Mingchu Li
- Department of Neurosurgery, Samii Clinical Neuroanatomy Research & Education Center, Capital Medical University Xuanwu Hospital, China International Neuroscience Institute (China-INI), Beijing, China
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Huang J, Li M, Zeng Q, Xie L, He J, Chen G, Liang J, Li M, Feng Y. Automatic oculomotor nerve identification based on
data‐driven
fiber clustering. Hum Brain Mapp 2022; 43:2164-2180. [PMID: 35092135 PMCID: PMC8996358 DOI: 10.1002/hbm.25779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/09/2021] [Accepted: 12/26/2021] [Indexed: 11/10/2022] Open
Abstract
The oculomotor nerve (OCN) is the main motor nerve innervating eye muscles and can be involved in multiple flammatory, compressive, or pathologies. The diffusion magnetic resonance imaging (dMRI) tractography is now widely used to describe the trajectory of the OCN. However, the complex cranial structure leads to difficulties in fiber orientation distribution (FOD) modeling, fiber tracking, and region of interest (ROI) selection. Currently, the identification of OCN relies on expert manual operation, resulting in challenges, such as the carries high clinical, time‐consuming, and labor costs. Thus, we propose a method that can automatically identify OCN from dMRI tractography. First, we choose the multi‐shell multi‐tissue constraint spherical deconvolution (MSMT‐CSD) FOD estimation model and deterministic tractography to describe the 3D trajectory of the OCN. Then, we rely on the well‐established computational pipeline and anatomical expertise to create a data‐driven OCN tractography atlas from 40 HCP data. We identify six clusters belonging to the OCN from the atlas, including the structures of three kinds of positional relationships (pass between, pass through, and go around) with the red nuclei and two kinds of positional relationships with medial longitudinal fasciculus. Finally, we apply the proposed OCN atlas to identify the OCN automatically from 40 new HCP subjects and two patients with brainstem cavernous malformation. In terms of spatial overlap and visualization, experiment results show that the automatically and manually identified OCN fibers are consistent. Our proposed OCN atlas provides an effective tool for identifying OCN by avoiding the traditional selection strategy of ROIs.
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Affiliation(s)
- Jiahao Huang
- Institute of Information Processing and Automation, College of Information Engineering, Zhejiang University of Technology Hangzhou China
- Zhejiang Provincial United Key Laboratory of Embedded Systems Hangzhou China
| | - Mengjun Li
- Department of Radiology, Second Xiangya Hospital Central South University Hunan China
- Department of Neurosurgery Capital Medical University Xuanwu Hospital Beijing China
| | - Qingrun Zeng
- Institute of Information Processing and Automation, College of Information Engineering, Zhejiang University of Technology Hangzhou China
- Zhejiang Provincial United Key Laboratory of Embedded Systems Hangzhou China
| | - Lei Xie
- Institute of Information Processing and Automation, College of Information Engineering, Zhejiang University of Technology Hangzhou China
- Zhejiang Provincial United Key Laboratory of Embedded Systems Hangzhou China
| | - Jianzhong He
- Institute of Information Processing and Automation, College of Information Engineering, Zhejiang University of Technology Hangzhou China
- Zhejiang Provincial United Key Laboratory of Embedded Systems Hangzhou China
| | - Ge Chen
- Department of Neurosurgery Capital Medical University Xuanwu Hospital Beijing China
| | - Jiantao Liang
- Department of Neurosurgery Capital Medical University Xuanwu Hospital Beijing China
| | - Mingchu Li
- Department of Neurosurgery Capital Medical University Xuanwu Hospital Beijing China
| | - Yuanjing Feng
- Institute of Information Processing and Automation, College of Information Engineering, Zhejiang University of Technology Hangzhou China
- Zhejiang Provincial United Key Laboratory of Embedded Systems Hangzhou China
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Li MJ, Yeh FC, Huang SH, Huang CX, Zhang H, Liu J. Differential Tractography and Correlation Tractography Findings on Patients With Mild Traumatic Brain Injury: A Pilot Study. Front Hum Neurosci 2022; 16:751902. [PMID: 35126076 PMCID: PMC8811572 DOI: 10.3389/fnhum.2022.751902] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 01/05/2022] [Indexed: 11/13/2022] Open
Abstract
Differential tractography and correlation tractography are new tractography modalities to study neuronal changes in brain diseases, but their performances in detecting neuronal injuries are yet to be investigated in patients with mild traumatic brain injury (mTBI). Here we investigated the white matter injury in mTBI patients using differential and correlation tractography. The diffusion MRI was acquired at 33 mTBI patients and 31 health controls. 7 of the mTBI patients had one-year follow-up scans, and differential tractography was used to evaluate injured fiber bundles on these 7 patients. All subjects were evaluated using digital symbol substitution test (DSST) and trail making test A (TMT-A), and the correlation tractography was performed to explore the exact pathways related to the cognitive performance. Our results showed that differential tractography revealed neuronal changes in the corpus callosum in all 7 follow-up mTBI patients with FDR between 0.007 and 0.17. Further, the correlation tractography showed that the splenium of the corpus callosum, combined with the right superior longitudinal fasciculus and right cingulum, were correlated with DSST (FDR = 0.001669) in the acute mTBI patients. The cognitive impairment findings in the acute stage and the longitudinal findings in the corpus callosum in the chronic stage of mTBI patients suggest that differential tractography and correlation tractography are valuable tools in the diagnostic and prognostic evaluation of neuronal injuries in mTBI patients.
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Affiliation(s)
- Meng-Jun Li
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Fang-Cheng Yeh
- Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Department of Bioengineering, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Si-Hong Huang
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Chu-Xin Huang
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Huiting Zhang
- MR Scientific Marketing, Siemens Healthcare Ltd., Wuhan, China
| | - Jun Liu
- Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China
- *Correspondence: Jun Liu,
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