Cerebral Venous Thrombosis: A Challenging Diagnosis; A New Nonenhanced Computed Tomography Standardized Semi-Quantitative Method

Bibliographic Details
Title: Cerebral Venous Thrombosis: A Challenging Diagnosis; A New Nonenhanced Computed Tomography Standardized Semi-Quantitative Method
Authors: Andrea Romano, Maria Camilla Rossi-Espagnet, Luca Pasquini, Alberto Di Napoli, Francesco Dellepiane, Giulia Butera, Giulia Moltoni, Olga Gagliardo, Alessandro Bozzao
Source: Tomography, Vol 8, Iss 1, Pp 1-9 (2021)
Publisher Information: MDPI AG, 2021.
Publication Year: 2021
Collection: LCC:Computer applications to medicine. Medical informatics
Subject Terms: cerebral venous thrombosis, diagnosis, standardized method, CT, ROI based, Computer applications to medicine. Medical informatics, R858-859.7
More Details: Cerebral venous sinus thrombosis (CVST) on non-contrast CT (NCCT) is often challenging to detect. We retrospectively selected 41 children and 36 adults with confirmed CVST and two age-matched control groups with comparable initial symptoms. We evaluated NCCT placing four small circular ROIs in standardized regions of the cerebral dural venous system. The mean and maximum HU values were considered from each ROI, and the relative percentage variations were calculated (mean % variation and maximum % variation). We compared the highest measured value to the remaining three HU values through an ad-hoc formula based on the assumption that the thrombosed sinus has higher attenuation compared with the healthy sinuses. Percentage variations were employed to reflect how the attenuation of the thrombosed sinus deviates from the unaffected counterparts. The attenuation of the affected sinus was increased in patients with CVST, and consequently both the mean % and maximum % variations were increased. A mean % variation value of 12.97 and a maximum % variation value of 10.14 were found to be useful to distinguish patients with CVST from healthy subjects, with high sensitivity and specificity. Increased densitometric values were present in the site of venous thrombosis. A systematic, blind evaluation of the brain venous system can assist radiologists in identifying patients who need or do not need further imaging.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2379-139X
2379-1381
Relation: https://www.mdpi.com/2379-139X/8/1/1; https://doaj.org/toc/2379-1381; https://doaj.org/toc/2379-139X
DOI: 10.3390/tomography8010001
Access URL: https://doaj.org/article/c4afefca46c844e090af5ad092c3a15d
Accession Number: edsdoj.4afefca46c844e090af5ad092c3a15d
Database: Directory of Open Access Journals
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  Data: Cerebral Venous Thrombosis: A Challenging Diagnosis; A New Nonenhanced Computed Tomography Standardized Semi-Quantitative Method
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  Data: <searchLink fieldCode="AR" term="%22Andrea+Romano%22">Andrea Romano</searchLink><br /><searchLink fieldCode="AR" term="%22Maria+Camilla+Rossi-Espagnet%22">Maria Camilla Rossi-Espagnet</searchLink><br /><searchLink fieldCode="AR" term="%22Luca+Pasquini%22">Luca Pasquini</searchLink><br /><searchLink fieldCode="AR" term="%22Alberto+Di+Napoli%22">Alberto Di Napoli</searchLink><br /><searchLink fieldCode="AR" term="%22Francesco+Dellepiane%22">Francesco Dellepiane</searchLink><br /><searchLink fieldCode="AR" term="%22Giulia+Butera%22">Giulia Butera</searchLink><br /><searchLink fieldCode="AR" term="%22Giulia+Moltoni%22">Giulia Moltoni</searchLink><br /><searchLink fieldCode="AR" term="%22Olga+Gagliardo%22">Olga Gagliardo</searchLink><br /><searchLink fieldCode="AR" term="%22Alessandro+Bozzao%22">Alessandro Bozzao</searchLink>
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  Data: Tomography, Vol 8, Iss 1, Pp 1-9 (2021)
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  Data: MDPI AG, 2021.
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  Data: 2021
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  Data: LCC:Computer applications to medicine. Medical informatics
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  Data: <searchLink fieldCode="DE" term="%22cerebral+venous+thrombosis%22">cerebral venous thrombosis</searchLink><br /><searchLink fieldCode="DE" term="%22diagnosis%22">diagnosis</searchLink><br /><searchLink fieldCode="DE" term="%22standardized+method%22">standardized method</searchLink><br /><searchLink fieldCode="DE" term="%22CT%22">CT</searchLink><br /><searchLink fieldCode="DE" term="%22ROI+based%22">ROI based</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+applications+to+medicine%2E+Medical+informatics%22">Computer applications to medicine. Medical informatics</searchLink><br /><searchLink fieldCode="DE" term="%22R858-859%2E7%22">R858-859.7</searchLink>
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  Label: Description
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  Data: Cerebral venous sinus thrombosis (CVST) on non-contrast CT (NCCT) is often challenging to detect. We retrospectively selected 41 children and 36 adults with confirmed CVST and two age-matched control groups with comparable initial symptoms. We evaluated NCCT placing four small circular ROIs in standardized regions of the cerebral dural venous system. The mean and maximum HU values were considered from each ROI, and the relative percentage variations were calculated (mean % variation and maximum % variation). We compared the highest measured value to the remaining three HU values through an ad-hoc formula based on the assumption that the thrombosed sinus has higher attenuation compared with the healthy sinuses. Percentage variations were employed to reflect how the attenuation of the thrombosed sinus deviates from the unaffected counterparts. The attenuation of the affected sinus was increased in patients with CVST, and consequently both the mean % and maximum % variations were increased. A mean % variation value of 12.97 and a maximum % variation value of 10.14 were found to be useful to distinguish patients with CVST from healthy subjects, with high sensitivity and specificity. Increased densitometric values were present in the site of venous thrombosis. A systematic, blind evaluation of the brain venous system can assist radiologists in identifying patients who need or do not need further imaging.
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