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Kim M, Park SW, Lee JY, Kim H, Rhim JH, Park S, Lee JY, Son H, Kim YK, Lee SH. Differences in Brain Morphology between Hydrocephalus Ex Vacuo and Idiopathic Normal Pressure Hydrocephalus. Psychiatry Investig 2021; 18:628-635. [PMID: 34265199 PMCID: PMC8328827 DOI: 10.30773/pi.2020.0352] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 04/10/2021] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE The distinction between idiopathic normal pressure hydrocephalus (iNPH) and hydrocephalus ex vacuo caused by encephalic volume loss remains to be established. This study aims to investigate radiological parameters as clinically useful tools to discriminate iNPH from hydrocephalus ex vacuo caused by Alzheimer's disease (AD). METHODS A total of 54 patients with ventriculomegaly (iNPH, 25; hydrocephalus ex vacuo, 29) were recruited in this study. Consequently, nine radiological parameters were compared between iNPH and hydrocephalus ex vacuo using magnetic resonance imaging (MRI). RESULTS A small callosal angle (CA), the Sylvian fissure dilatation, and absence of narrowing of superior parietal sulci discriminated the iNPH group from the hydrocephalus ex vacuo group (p<0.05). The final binary logistic regression model included narrowing of superior parietal sulci, degrees of the CA, and height of the Sylvian fissure after controlling for age and global Clinical Dementia Rating (CDR). The composite score made from these three indicators (narrowing of superior parietal sulci, degrees of the CA, and height of the Sylvian fissure) was statistically different between iNPH and hydrocephalus ex vacuo. CONCLUSION The narrowing of the CA, dilatation of the Sylvain fissure, and narrowing of superior parietal sulci may be used as radiological key indices and noninvasive tools for the differential diagnosis of iNPH from hydrocephalus ex vacuo.
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Affiliation(s)
- Minkyung Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sun-Won Park
- Department of Radiology, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea.,Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jun-Young Lee
- Department of Psychiatry, Seoul National University College of Medicine & SMG-SNU Boramae Medical Center, Seoul, Republic of Korea
| | - Hongrae Kim
- Department of Psychiatry, Seoul National University College of Medicine & SMG-SNU Boramae Medical Center, Seoul, Republic of Korea
| | - Jung Hyo Rhim
- Department of Radiology, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea
| | - Soowon Park
- Department of Teacher Education, College of Liberal Arts and Interdisciplinary Studies, Kyonggi University, Suwon, Republic of Korea
| | - Jee-Young Lee
- Department of Neurology, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea
| | - Hwancheol Son
- Department of Urology, Seoul National University College of Medicine & SMG-SNU Boramae Medical Center, Seoul, Republic of Korea
| | - Yu Kyeong Kim
- Department of Nuclear Medicine, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea
| | - Sang Hyung Lee
- Department of Neurosurgery, Seoul National University College of Medicine & SMG-SNU Boramae Medical Center, Seoul, Republic of Korea
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Hippocampal Subfield Volumes in Major Depressive Disorder Adolescents with a History of Suicide Attempt. BIOMED RESEARCH INTERNATIONAL 2021; 2021:5524846. [PMID: 33954172 PMCID: PMC8057893 DOI: 10.1155/2021/5524846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/23/2021] [Accepted: 04/05/2021] [Indexed: 12/03/2022]
Abstract
Suicidal behavior is a leading cause of death and often commences during adolescence/young adulthood (15~29 years old). The hippocampus, which consists of multiple functionally specialized subfields, may contribute to the pathophysiology of depression and suicidal behavior. We aimed to investigate the differences of hippocampal subfield volume between major depressive disorder (MDD) patients with and without suicide attempts and healthy controls in adolescents and young adults. A total of 40 MDD suicide attempters (MDD+SA), 27 MDD patients without suicide attempt (MDD-SA), and 37 healthy controls (HC) were recruited. High-resolution T1 MRI images were analyzed with the automated hippocampal substructure module in FreeSurfer 6.0. Volume differences among the groups were analyzed by a generalized linear model controlling for intracranial cavity volume (ICV). The relationship between hippocampal subfield volumes and clinical characteristics (HAM-D and SSI scores) was assessed using two-tailed partial correlation controlling for ICV in MDD+SA and MDD-SA. We found that MDD-SA had significantly smaller bilateral hippocampal fissure volume than HC and MDD+SA. No significant correlation was observed between hippocampal subfield volume and clinical characteristics (HAM-D and SSI scores) in MDD+SA and MDD-SA. Adolescent/young adult suicide attempters with MDD suicide attempters have larger bilateral hippocampal fissures than depressed patients without suicide attempts, independently from clinical characteristics. Within the heterogeneous syndrome of major depressive disorder that holds a risk for suicidality for subgroups, hippocampal morphology may help to explain or possibly predict such risk, yet longitudinal and functional studies are needed for understanding the biological mechanisms underlying.
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Achour A, Mnari W, Miladi A, Hmida B, Maatouk M, Golli M, Zrig A. Temporal choroidal fissure cyst: a rare cause of temporal lobe epilepsy. Pan Afr Med J 2020; 36:120. [PMID: 32821331 PMCID: PMC7406448 DOI: 10.11604/pamj.2020.36.120.21327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 01/14/2020] [Indexed: 11/13/2022] Open
Abstract
Only a few cases of temporal choroidal fissure cyst are reported. We describe a new case of an 8 years old girl who manifested complex partial seizure. The diagnosis was made by magnetic resonance imagining (MRI). The signal intensity of the cyst was identical to the cerebrospinal fluid (CSF), and the underlying hippocampus was compressed by the cyst. The seizures were medically controlled. The value of MRI in the diagnosis and medical treatment will be discussed.
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Affiliation(s)
- Asma Achour
- Radiology department A, Fattouma Bourguiba Hospital, Monastir Medical University, Monastir, Tunisia
| | - Walid Mnari
- Radiology department A, Fattouma Bourguiba Hospital, Monastir Medical University, Monastir, Tunisia
| | - Ahmed Miladi
- Radiology department A, Fattouma Bourguiba Hospital, Monastir Medical University, Monastir, Tunisia
| | - Badii Hmida
- Radiology department A, Fattouma Bourguiba Hospital, Monastir Medical University, Monastir, Tunisia
| | - Mezri Maatouk
- Radiology department A, Fattouma Bourguiba Hospital, Monastir Medical University, Monastir, Tunisia
| | - Mondher Golli
- Radiology department A, Fattouma Bourguiba Hospital, Monastir Medical University, Monastir, Tunisia
| | - Ahmed Zrig
- Radiology department A, Fattouma Bourguiba Hospital, Monastir Medical University, Monastir, Tunisia
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Scelsi CL, Rahim TA, Morris JA, Kramer GJ, Gilbert BC, Forseen SE. The Lateral Ventricles: A Detailed Review of Anatomy, Development, and Anatomic Variations. AJNR Am J Neuroradiol 2020; 41:566-572. [PMID: 32079598 PMCID: PMC7144651 DOI: 10.3174/ajnr.a6456] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 01/06/2020] [Indexed: 02/04/2023]
Abstract
The cerebral ventricles have been studied since the fourth century BC and were originally thought to harbor the soul and higher executive functions. During the infancy of neuroradiology, alterations to the ventricular shape and position on pneumoencephalography and ventriculography were signs of mass effect or volume loss. However, in the current era of high-resolution cross-sectional imaging, variation in ventricular anatomy is more easily detectable and its clinical significance is still being investigated. Interpreting radiologists must be aware of anatomic variations of the ventricular system to prevent mistaking normal variants for pathology. We will review of the anatomy and development of the lateral ventricles and discuss several ventricular variations.
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Affiliation(s)
- C L Scelsi
- From the Departments of Radiology (C.L.S., T.A.R., J.A.M., G.J.K.)
| | - T A Rahim
- From the Departments of Radiology (C.L.S., T.A.R., J.A.M., G.J.K.)
| | - J A Morris
- From the Departments of Radiology (C.L.S., T.A.R., J.A.M., G.J.K.)
| | - G J Kramer
- From the Departments of Radiology (C.L.S., T.A.R., J.A.M., G.J.K.)
| | - B C Gilbert
- Neuroradiology (B.C.G., S.E.F.), Medical College of Georgia, Augusta, Georgia
| | - S E Forseen
- Neuroradiology (B.C.G., S.E.F.), Medical College of Georgia, Augusta, Georgia
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Wang H, Ahmed SN, Mandal M. Computer-aided detection of mesial temporal sclerosis based on hippocampus and cerebrospinal fluid features in MR images. Biocybern Biomed Eng 2019. [DOI: 10.1016/j.bbe.2018.10.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Li Y, Yan J, Zhu X, Zhu Y, Qin J, Zhang N, Ju S. Increased hippocampal fissure width is a sensitive indicator of rat hippocampal atrophy. Brain Res Bull 2017; 137:91-97. [PMID: 29174731 DOI: 10.1016/j.brainresbull.2017.11.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 11/08/2017] [Accepted: 11/22/2017] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Volume loss within the hippocampus is known as the most replicated finding of structural brain imaging studies of neuropsychiatric diseases. Although voxel-based auto or semi-auto volumetric measurements are widely used in the determination of the human hippocampus, the detection of hippocampal atrophy in rats is still a dilemma as it relies on a relatively primitive and complex approach. In this study, we aimed to develop a convenient way to measure the atrophy of the hippocampus in rats. METHODS Twenty-four male Wistar rats were exposed to chronic unpredictable mild stress (CUMS) and a wheel running test (WRT) to simulate the conditions of hippocampal volume atrophy and improvement. The hippocampal volume and hippocampal fissure (HiF) width were dynamically measured using 7 T structural magnetic resonance imaging (MRI) with the grayscale method at week 0, 2, 4, and 8. The changes in the hippocampal volume and HiF width in rats were compared. In addition, hematoxylin-eosin (HE) staining of the HiF was used to verify the MRI findings. RESULTS The hippocampal volume and the HiF width presented opposite trends based on the MRI findings and the histology data. The atrophy of the hippocampal subfields was closely related to the corresponding increase in the HiF width. CONCLUSION Determination of the HiF width may serve as a sensitive and convenient indicator of rat hippocampal atrophy.
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Affiliation(s)
- Yuefeng Li
- Department of Radiology, Zhongda Affiliated Hospital of Southeast University, Nanjing, China; Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jinchuan Yan
- Department of Cardiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xiaolan Zhu
- Department of Obstetrics and Gynecology, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China.
| | - Yan Zhu
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jiasheng Qin
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Ningning Zhang
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Shenghong Ju
- Department of Radiology, Zhongda Affiliated Hospital of Southeast University, Nanjing, China.
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Schwartz TH, Marks D, Pak J, Hill J, Mandelbaum DE, Holodny AI, Schulder M. Standardization of amygdalohippocampectomy with intraoperative magnetic resonance imaging: preliminary experience. Epilepsia 2002; 43:430-6. [PMID: 11952775 DOI: 10.1046/j.1528-1157.2002.39101.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
PURPOSE Intraoperative magnetic resonance imaging (IMRI) is an extremely useful neurosurgical tool in surgeries in which the extent of resection is known to have a significant impact on outcome. Residual hippocampus is the most common cause of recurrent seizures after temporal lobectomy for medial temporal lobe epilepsy. Although the risk/benefit ratio of a policy of universal radical hippocampal resection is not known, we hypothesized that IMRI would aid in the intraoperative assessment of the extent of hippocampal resection and assist in accomplishing a complete hippocampectomy. METHODS Five consecutive patients with medically intractable medial temporal lobe epilepsy underwent a radical amygdalohippocampectomy as part of the their surgery for epilepsy. IMRI was used before surgery and after an initial resection. The quality of images was assessed. Postoperative MR images were evaluated by a radiologist to determine the extent of resection of the amygdala, hippocampus, and parahippocampal gyrus. RESULTS There were no perioperative infections. After a mean follow-up of 10 months, all patients are seizure free. T(1)-weighted coronal intraoperative images were judged adequate at visualizing the medial structures in all patients. T(2) and fluid-attenuated inversion recovery (FLAIR) images did not provide useful information. Postoperative MR images indicated that a complete hippocampectomy had been achieved in all patients. CONCLUSIONS IMRI is a useful adjunct in the surgical treatment of medial temporal lobe epilepsy and perhaps the most reliable method of standardizing a complete hippocampectomy. T(1)-weighted coronal images are the most helpful sequence.
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Affiliation(s)
- Theodore H Schwartz
- Department of Neurosurgery, The Neurological Institute of New Jersey, UMDNJ-New Jersey Medical School, Newark, NJ, U.S.A.
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