Anatomic Variation of the Lateral Sinus in Patients With Idiopathic Intracranial Hypertension: Delineation With Black-Blood Contrast-Enhanced MRI

Objectives: The purpose of this study was to describe the peculiar anatomic variations in the lateral sinus and analyze the patterns of cerebrospinal fluid (CSF) drainage by using high-resolution (HR) black-blood (BB) contrast-enhanced magnetic resonance imaging (MRI) in patients with idiopathic int...

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Autores principales:	Yu Tian, Zhe Zhang, Jing Jing, Kehui Dong, Dapeng Mo, Yilong Wang
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	pseudotumor cerebri syndrome Idiopathic intracranial hypertension (IIH) cerebral venous sinus stenosis (CVSS) arachnoid granulation black-blood magnetic resonance imaging (BB-MRI) Neurology. Diseases of the nervous system RC346-429
Acceso en línea:	https://doaj.org/article/e48e633d88bf4b55b007803140986cd1
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spelling	oai:doaj.org-article:e48e633d88bf4b55b007803140986cd12021-12-01T01:27:17ZAnatomic Variation of the Lateral Sinus in Patients With Idiopathic Intracranial Hypertension: Delineation With Black-Blood Contrast-Enhanced MRI1664-229510.3389/fneur.2021.715857https://doaj.org/article/e48e633d88bf4b55b007803140986cd12021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fneur.2021.715857/fullhttps://doaj.org/toc/1664-2295Objectives: The purpose of this study was to describe the peculiar anatomic variations in the lateral sinus and analyze the patterns of cerebrospinal fluid (CSF) drainage by using high-resolution (HR) black-blood (BB) contrast-enhanced magnetic resonance imaging (MRI) in patients with idiopathic intracranial hypertension (IIH).Methods: Total 33 IIH patients who were found cerebral venous sinus stenosis (CVSS) by MR venography (MRV) were enrolled in this study. HR-BB contrast-enhanced MRI was used to assess the features of anatomical variations in transverse sinus and sigmoid sinus. The development of bilateral sinuses was firstly evaluated, including unilateral hypoplasia with contralateral dominance or bilateral balanced development. Then, four kinds of anatomical variations were eventually recorded, including circumscribed stenosis, arachnoid granulation (AG), fibrous septum (FS), and brain herniation (BH) into dural venous sinus (DVS).Results: Bilateral venous drainage dysfunction was found in 30(90.9%) patients, whereas only 3(9.1%) patients presented unilateral venous drainage dysfunction. There was no difference in clinical symptoms between the two groups. The most common case is hypoplasia in unilateral sinus combined with anatomic variation in the contralateral dominant transverse sinus such as AG and BH into DVS. Total of 52 anatomic variations were finally found in bilateral sinuses in 33 enrolled patients, including 19(36.5%)AGs, 12(23.1%)FS, 7(13.5%) BH into DVS and 14(26.9%) circumscribed stenoses. Moreover, 41(62.1%) lateral sinuses showed enhancement in T1-weight-enhanced MRI.Conclusions: Patients with CVSS almost had CSF outflow disorders, whatever bilateral equalization or unilateral hypoplasia with contralateral dominance. Four types of main anatomic variations, including circumscribed stenosis, AG, FS, and BH into DVS, caused venous reflux obstruction by elevating the intracranial press (ICP).Yu TianYu TianYu TianYu TianYu TianZhe ZhangZhe ZhangZhe ZhangZhe ZhangZhe ZhangJing JingJing JingJing JingJing JingJing JingKehui DongKehui DongKehui DongKehui DongKehui DongDapeng MoDapeng MoDapeng MoDapeng MoDapeng MoYilong WangYilong WangYilong WangYilong WangYilong WangFrontiers Media S.A.articlepseudotumor cerebri syndromeIdiopathic intracranial hypertension (IIH)cerebral venous sinus stenosis (CVSS)arachnoid granulationblack-blood magnetic resonance imaging (BB-MRI)Neurology. Diseases of the nervous systemRC346-429ENFrontiers in Neurology, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	pseudotumor cerebri syndrome Idiopathic intracranial hypertension (IIH) cerebral venous sinus stenosis (CVSS) arachnoid granulation black-blood magnetic resonance imaging (BB-MRI) Neurology. Diseases of the nervous system RC346-429
spellingShingle	pseudotumor cerebri syndrome Idiopathic intracranial hypertension (IIH) cerebral venous sinus stenosis (CVSS) arachnoid granulation black-blood magnetic resonance imaging (BB-MRI) Neurology. Diseases of the nervous system RC346-429 Yu Tian Yu Tian Yu Tian Yu Tian Yu Tian Zhe Zhang Zhe Zhang Zhe Zhang Zhe Zhang Zhe Zhang Jing Jing Jing Jing Jing Jing Jing Jing Jing Jing Kehui Dong Kehui Dong Kehui Dong Kehui Dong Kehui Dong Dapeng Mo Dapeng Mo Dapeng Mo Dapeng Mo Dapeng Mo Yilong Wang Yilong Wang Yilong Wang Yilong Wang Yilong Wang Anatomic Variation of the Lateral Sinus in Patients With Idiopathic Intracranial Hypertension: Delineation With Black-Blood Contrast-Enhanced MRI
description	Objectives: The purpose of this study was to describe the peculiar anatomic variations in the lateral sinus and analyze the patterns of cerebrospinal fluid (CSF) drainage by using high-resolution (HR) black-blood (BB) contrast-enhanced magnetic resonance imaging (MRI) in patients with idiopathic intracranial hypertension (IIH).Methods: Total 33 IIH patients who were found cerebral venous sinus stenosis (CVSS) by MR venography (MRV) were enrolled in this study. HR-BB contrast-enhanced MRI was used to assess the features of anatomical variations in transverse sinus and sigmoid sinus. The development of bilateral sinuses was firstly evaluated, including unilateral hypoplasia with contralateral dominance or bilateral balanced development. Then, four kinds of anatomical variations were eventually recorded, including circumscribed stenosis, arachnoid granulation (AG), fibrous septum (FS), and brain herniation (BH) into dural venous sinus (DVS).Results: Bilateral venous drainage dysfunction was found in 30(90.9%) patients, whereas only 3(9.1%) patients presented unilateral venous drainage dysfunction. There was no difference in clinical symptoms between the two groups. The most common case is hypoplasia in unilateral sinus combined with anatomic variation in the contralateral dominant transverse sinus such as AG and BH into DVS. Total of 52 anatomic variations were finally found in bilateral sinuses in 33 enrolled patients, including 19(36.5%)AGs, 12(23.1%)FS, 7(13.5%) BH into DVS and 14(26.9%) circumscribed stenoses. Moreover, 41(62.1%) lateral sinuses showed enhancement in T1-weight-enhanced MRI.Conclusions: Patients with CVSS almost had CSF outflow disorders, whatever bilateral equalization or unilateral hypoplasia with contralateral dominance. Four types of main anatomic variations, including circumscribed stenosis, AG, FS, and BH into DVS, caused venous reflux obstruction by elevating the intracranial press (ICP).
format	article
author	Yu Tian Yu Tian Yu Tian Yu Tian Yu Tian Zhe Zhang Zhe Zhang Zhe Zhang Zhe Zhang Zhe Zhang Jing Jing Jing Jing Jing Jing Jing Jing Jing Jing Kehui Dong Kehui Dong Kehui Dong Kehui Dong Kehui Dong Dapeng Mo Dapeng Mo Dapeng Mo Dapeng Mo Dapeng Mo Yilong Wang Yilong Wang Yilong Wang Yilong Wang Yilong Wang
author_facet	Yu Tian Yu Tian Yu Tian Yu Tian Yu Tian Zhe Zhang Zhe Zhang Zhe Zhang Zhe Zhang Zhe Zhang Jing Jing Jing Jing Jing Jing Jing Jing Jing Jing Kehui Dong Kehui Dong Kehui Dong Kehui Dong Kehui Dong Dapeng Mo Dapeng Mo Dapeng Mo Dapeng Mo Dapeng Mo Yilong Wang Yilong Wang Yilong Wang Yilong Wang Yilong Wang
author_sort	Yu Tian
title	Anatomic Variation of the Lateral Sinus in Patients With Idiopathic Intracranial Hypertension: Delineation With Black-Blood Contrast-Enhanced MRI
title_short	Anatomic Variation of the Lateral Sinus in Patients With Idiopathic Intracranial Hypertension: Delineation With Black-Blood Contrast-Enhanced MRI
title_full	Anatomic Variation of the Lateral Sinus in Patients With Idiopathic Intracranial Hypertension: Delineation With Black-Blood Contrast-Enhanced MRI
title_fullStr	Anatomic Variation of the Lateral Sinus in Patients With Idiopathic Intracranial Hypertension: Delineation With Black-Blood Contrast-Enhanced MRI
title_full_unstemmed	Anatomic Variation of the Lateral Sinus in Patients With Idiopathic Intracranial Hypertension: Delineation With Black-Blood Contrast-Enhanced MRI
title_sort	anatomic variation of the lateral sinus in patients with idiopathic intracranial hypertension: delineation with black-blood contrast-enhanced mri
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/e48e633d88bf4b55b007803140986cd1
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Anatomic Variation of the Lateral Sinus in Patients With Idiopathic Intracranial Hypertension: Delineation With Black-Blood Contrast-Enhanced MRI

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