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  1. radiopaedia.org › articles › ultrasound-assessment-of-carotid-arterialUltrasound assessment of carotid arterial atherosclerotic disease

    4 de may. de 2024 · diagnosis is established primarily by demonstrating a markedly narrowed lumen with "trickle flow," on color or power Doppler ultrasound. total occlusion of the ICA: no detectable luminal patency with grey-scale ultrasound and no detectable flow with color, spectral, or power Doppler ultrasound.

  2. radiopaedia.org › articles › portal-veinPortal vein | Radiology Reference Article | Radiopaedia.org

    25 de abr. de 2024 · The normal velocity of portal venous flow is 20cm/s to 40cm/s on spectral Doppler ultrasound. The waveform shows gentle undulations with hepatopetal flow direction 12. CT

  3. link.springer.com › article › 10Ultrasound evaluation of portal venous gas and its mimics

    Hace 2 días · Spectral Doppler interrogation of the portal vein (b) demonstrates intermittent bidirectional spikes (arrow in b) concerning for PVG. Subsequent Noncontrast CT of the abdomen and pelvis obtained in the sagittal ( c ) and coronal ( d ) planes was remarkable for significant colonic thickening with mesenteric stranding (arrows in c , d ) and minimal pneumatosis intestinalis (asterisk in d ...

  4. radiopaedia.org › articles › acute-respiratory-distress-syndrome-1Acute respiratory distress syndrome | Radiology Reference Article...

    20 de abr. de 2024 · a pulmonary capillary wedge pressure may be semiquantified with spectral Doppler derived diastolic indices such as an E/e' 20. absence of a severely abnormal left ventricular systolic function also supportive. Treatment and prognosis

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  6. www.cvcasejournal.com › article › S2468-6441(24)00083-5Severe Prosthetic Mitral Valve Regurgitation Hidden by Acoustic...

    7 de may. de 2024 · Spectral Doppler and quantitative parameters represent important tools for the detection and evaluation of suspected prosthetic regurgitation. This case illustrates the limitations of transthoracic two-dimensional (2D) and color-flow Doppler evaluation in the presence of both mitral and aortic prostheses. Case Presentation.

  7. pubs.rsna.org › radiology › doiTumor vascularization: assessment with duplex sonography.

    1 de may. de 2024 · characterization of normal and abnormal canine superficial lymph nodes using gray-scale b-mode, color flow mapping, power, and spectral doppler ultrasonography: a multivariate study

  8. accessanesthesiology.mhmedical.com › contentChapter 53. Doppler Evaluation of Pulses - McGraw Hill Medical

    Hace 2 días · Introduction. Certain patients in the intensive care unit (ICU) are at risk for arterial insufficiency due to arterial injury (ie, aortic or other vascular dissection) or vascular surgery. Portable Doppler evaluation may also be used as an adjunct to standard blood pressure measurement or pulse detection.