Journal: Journal of vascular and interventional radiology : JVIR

Article Title: The Feasibility of using Volumetric Phase Contrast MR Imaging (4D Flow) to assess for Transjugular Intrahepatic Portosystemic Shunt Dysfunction

doi: 10.1016/j.jvir.2018.07.022

Figure Lengend Snippet: 4D Flow Imaging Parameters.

Article Snippet: Cranio-caudal field of view should be selected on end-expiratory imaging or free breathing images as the respiratory navigated Siemens 4D Flow sequence captures data during end expiration.

Techniques: Imaging

Journal: Journal of vascular and interventional radiology : JVIR

Article Title: The Feasibility of using Volumetric Phase Contrast MR Imaging (4D Flow) to assess for Transjugular Intrahepatic Portosystemic Shunt Dysfunction

doi: 10.1016/j.jvir.2018.07.022

Figure Lengend Snippet: 4D Flow MR relative concordance or discordance with reference standard. Rows shaded in gray are cases where the Doppler US, reference standards, and 4D Flow agreed. Rows in bold indicate cases were 4D Flow agreed with the reference standard, but Doppler US did not. Red indicates cases were Doppler US or 4D Flow was discordant with the reference standard.

Article Snippet: Cranio-caudal field of view should be selected on end-expiratory imaging or free breathing images as the respiratory navigated Siemens 4D Flow sequence captures data during end expiration.

Techniques:

Journal: Journal of vascular and interventional radiology : JVIR

Article Title: The Feasibility of using Volumetric Phase Contrast MR Imaging (4D Flow) to assess for Transjugular Intrahepatic Portosystemic Shunt Dysfunction

doi: 10.1016/j.jvir.2018.07.022

Figure Lengend Snippet: Comparison of Doppler and 4D Flow metrics. Combined 4D Flow indicates that both qualitative and quantitative metrics were positive to determine final test positivity. If one metric was negative, the test was considered negative. Both qualitiative and quantitative 4D Flow had high negative predictive value. Positive predictive value was only achieved when both the qualitative and quantitative evaluations were positive for dysfunction. Note: 7 technical failures of 4D Flow were excluded from this table.

Article Snippet: Cranio-caudal field of view should be selected on end-expiratory imaging or free breathing images as the respiratory navigated Siemens 4D Flow sequence captures data during end expiration.

Techniques: Comparison