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Estimating Flow Direction of Circle of Willis Using Dynamic Arterial Spin Labeling Magnetic Resonance Angiography.
Zhang, Kaiyu; Akcicek, Halit; Shi, Gen; Canton, Gador; Liu, Josh; Guo, Yin; Wang, Xin; Chen, Li; Pimentel, Kristi D; Akcicek, Ebru Yaman; Tang, Xihe; Jin, Yongjian; Li, Xuesong; Balu, Niranjan; Hatsukami, Thomas S; Mossa-Basha, Mahmud; Chen, Zhensen; Yuan, Chun.
Afiliação
  • Zhang K; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Akcicek H; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Shi G; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Canton G; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Liu J; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Guo Y; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Wang X; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Chen L; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Pimentel KD; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Akcicek EY; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Tang X; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Jin Y; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Li X; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Balu N; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Hatsukami TS; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Mossa-Basha M; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Chen Z; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
  • Yuan C; From the Department of Bioengineering (K.Z., J.L., Y.G., C.Y.), Department of Radiology (G.C., K.D.P., N.B., M.M., C.Y.), Department of Electrical and Computer Engineering (X.W., L.C.), and Department of Surgery (T.S.H.), University of Washington, Seattle, Washington, USA; Department of Radiology an
AJNR Am J Neuroradiol ; 2024 May 24.
Article em En | MEDLINE | ID: mdl-38789121
ABSTRACT
BACKGROUND AND

PURPOSE:

The Circle of Willis (COW) is a crucial mechanism for cerebral collateral circulation. This proof-ofconcept study aims to develop and assess an analysis method to characterize the hemodynamics of the arterial segments in COW using arterial spin labeling (ASL) based non-contrast enhanced dynamic magnetic resonance angiography (dMRA). MATERIALS AND

METHODS:

The developed analysis method uses a graph model, bootstrap strategy, and ensemble learning methodologies to determine the time-curve shift from ASL dMRA to estimate the flow direction within the COW. The performance of the method was assessed on 52 subjects, using the flow direction, either antegrade or retrograde, derived from 3D phase contrast (PC) MRI as the reference.

RESULTS:

A total of 340 arterial segments in COW were evaluated, among which 30 (8.8%) had retrograde flow according to 3D PC. The ASL dMRA-based flow direction estimation has an accuracy, sensitivity, and specificity of 95.47%, 80%, and 96.34%, respectively.

CONCLUSIONS:

Using ASL dMRA and the developed image analysis method to estimate the flow direction in COW is feasible. This study provides a new method to assess the hemodynamics of the COW, which could be useful for the diagnosis and study of cerebrovascular diseases. ABBREVIATIONS COW = Circle of Willis; ASL = arterial spin labeling; dMRA =dynamic magnetic resonance angiography; PC = phase contrast.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article
Texto completo
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PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article