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Relationship between Abnormal Hyperintensity on T2-Weighted Images Around Developmental Venous Anomalies and Magnetic Susceptibility of Their Collecting Veins: In-Vivo Quantitative Susceptibility Mapping Study

Korean Journal of Radiology, 2019, 20(4), , pp.662-670

Copyright © 2019 The Korean Society of Radiology. ;2019. This work is published under http://creativecommons.org/licenses/by-nc/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;Copyright © 2019 The Korean Society of Radiology 2019 The Korean Society of Radiology ;ISSN: 1229-6929 ;EISSN: 2005-8330 ;DOI: 10.3348/kjr.2018.0685 ;PMID: 30887748

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  • Title:
    Relationship between Abnormal Hyperintensity on T2-Weighted Images Around Developmental Venous Anomalies and Magnetic Susceptibility of Their Collecting Veins: In-Vivo Quantitative Susceptibility Mapping Study
  • Author: Choi, Yangsean ; Jang, Jinhee ; Nam, Yoonho ; Shin, Na Young ; Choi, Hyun Seok ; Jung, So Lyung ; Ahn, Kook Jin ; Kim, Bum Soo
  • Subjects: Adult ; Aged ; Cerebral Veins - abnormalities ; Cerebral Veins - diagnostic imaging ; Clinical significance ; Edema ; Edema - pathology ; Female ; Fistula ; Frontal Lobe - diagnostic imaging ; Humans ; Magnetic Resonance Imaging ; Male ; Metabolism ; Middle Aged ; Neuroimaging and Head & Neck ; Retrospective Studies ; Vascular Malformations - diagnosis ; Veins & arteries ; 방사선과학
  • Is Part Of: Korean Journal of Radiology, 2019, 20(4), , pp.662-670
  • Description: A developmental venous anomaly (DVA) is a vascular malformation of ambiguous clinical significance. We aimed to quantify the susceptibility of draining veins (χ ) in DVA and determine its significance with respect to oxygen metabolism using quantitative susceptibility mapping (QSM). Brain magnetic resonance imaging of 27 consecutive patients with incidentally detected DVAs were retrospectively reviewed. Based on the presence of abnormal hyperintensity on T2-weighted images (T2WI) in the brain parenchyma adjacent to DVA, the patients were grouped into edema (E+, n = 9) and non-edema (E-, n = 18) groups. A 3T MR scanner was used to obtain fully flow-compensated gradient echo images for susceptibility-weighted imaging with source images used for QSM processing. The χ was measured semi-automatically using QSM. The normalized χ was also estimated. Clinical and MR measurements were compared between the E+ and E- groups using Student's t-test or Mann-Whitney U test. Correlations between the χ and area of hyperintensity on T2WI and between χ and diameter of the collecting veins were assessed. The correlation coefficient was also calculated using normalized veins. The DVAs of the E+ group had significantly higher χ (196.5 ± 27.9 vs. 167.7 ± 33.6, = 0.036) and larger diameter of the draining veins ( = 0.006), and patients were older ( = 0.006) than those in the E- group. The χ was also linearly correlated with the hyperintense area on T2WI ( = 0.633, 95% confidence interval 0.333-0.817, < 0.001). DVAs with abnormal hyperintensity on T2WI have higher susceptibility values for draining veins, indicating an increased oxygen extraction fraction that might be associated with venous congestion.
  • Publisher: Korea (South): The Korean Society of Radiology
  • Language: English
  • Identifier: ISSN: 1229-6929
    EISSN: 2005-8330
    DOI: 10.3348/kjr.2018.0685
    PMID: 30887748
  • Source: KoreaMed Synapse
    GFMER Free Medical Journals
    MEDLINE
    PubMed Central
    Alma/SFX Local Collection
    KoreaMed Open Access
    ProQuest Central
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