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Advanced cerebrospinal fluid flow MRI findings of aqueductal stenosis caused by web

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dc.contributor.authorYILMAZ T. F.
dc.contributor.authorSari L.
dc.contributor.authorTOPRAK H.
dc.contributor.institutionauthorYILMAZ, TEMEL FATİH
dc.contributor.institutionauthorTOPRAK, HÜSEYİN
dc.date.accessioned2023-12-20T21:50:25Z
dc.date.available2023-12-20T21:50:25Z
dc.date.issued2023-01-01
dc.description.abstractBackground: The aqueductal web (AW) is one of the causes of aqueductus stenosis (AS). Recent advances in Magnetic resonance (MR) imaging have enabled us to better reveal the cerebrospinal fluid (CSF) flow dynamics and aqueductal anatomy. Purpose: The aim of this study is to evaluate the CSF flow dynamics of patients with AW with phase contrast Magnetic resonance imaging (MRI) and compare them with the imaging findings. Materials and Methods: We evaluated 23 patients under 65-year-old age. On constructive interference in steady-state (T2 CISS) images, the width of prepontine cistern (PPC) and the width of Sylvian aqueduct (SA) were measured. Localization and number of webs were evaluated. The existence of flow at the aqueduct and the presence of spontaneous third ventriculostomy (STV) were evaluated on sagittal Sampling Perfection with Application optimized Contrast (SPACE) sequences. Results: Of the 23 patients included in the study, 11 were male and 12 were female. The mean age was 34.02 (0.5–64). A total of 31 AWs were detected in 23 patients. Six of 23 patients (26.1%) had STV and 17 of those not. Four of 23 patients (17.4%) had aqueductal flow on SPACE sequences. The PPC distance was significantly wider in patients with STV (median: 6.7–4.5, interquartile range (IQR): 1.35, p = 0.004). In the cases where artifact secondary to flow is observed in SPACE sequences in aqueduct, the Evan index (EI) was significantly lower (median: 0.2955–0.3900, IQR: 0.03–0.14, p < 0.001). Conclusion: In patients with a low EI, there may be flow in the SA even if there is a web. In patients with a wide PPC distance, it is necessary to consider the presence of STV and evaluate the presence of flow with the SPACE sequences.
dc.identifier.citationYILMAZ T. F., Sari L., TOPRAK H., "Advanced cerebrospinal fluid flow MRI findings of aqueductal stenosis caused by web", Journal of Clinical Ultrasound, 2023
dc.identifier.doi10.1002/jcu.23606
dc.identifier.issn0091-2751
dc.identifier.pubmed38013602
dc.identifier.scopus85177798082
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85177798082&origin=inward
dc.identifier.urihttps://hdl.handle.net/20.500.12645/38848
dc.relation.ispartofJournal of Clinical Ultrasound
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectTıp
dc.subjectDahili Tıp Bilimleri
dc.subjectNükleer Tıp
dc.subjectSağlık Bilimleri
dc.subjectMedicine
dc.subjectInternal Medicine Sciences
dc.subjectNuclear medicine
dc.subjectHealth Sciences
dc.subjectKlinik Tıp (MED)
dc.subjectKlinik Tıp
dc.subjectRADYOLOJİ, NÜKLEER TIP ve MEDİKAL GÖRÜNTÜLEME
dc.subjectClinical Medicine (MED)
dc.subjectCLINICAL MEDICINE
dc.subjectRADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
dc.subjectRadyoloji, Nükleer Tıp ve Görüntüleme
dc.subjectRadiology, Nuclear Medicine and Imaging
dc.subjectaqueductal stenosis
dc.subjectCSF flow
dc.subjectMRI
dc.subjectweb
dc.titleAdvanced cerebrospinal fluid flow MRI findings of aqueductal stenosis caused by web
dc.typearticle
dspace.entity.typePublication
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relation.isAuthorOfPublicationa87df4dd-3b1a-4db6-8da9-eb4909aa31c6
relation.isAuthorOfPublication64a97471-2c35-4dc5-9fd1-157fd3334a08
relation.isAuthorOfPublication.latestForDiscoverya87df4dd-3b1a-4db6-8da9-eb4909aa31c6
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