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Chronic deep vein thrombosis (DVT) in vascular ultrasound refers to a blood clot that has been present for an extended period, often weeks to months. Unlike acute DVT, chronic clots may be more organized, adherent to the vessel wall, and less likely to embolize acutely, though they can still lead to post-thrombotic syndrome. Ultrasound findings…

Phasicity, in vascular ultrasound, describes the characteristic variations in blood flow velocity over the cardiac cycle, appearing as distinct waveform patterns. This dynamic flow helps clinicians assess arterial and venous health, revealing crucial information about vascular resistance and pressure changes. Understanding phasicity is fundamental for accurate diagnosis of conditions like peripheral artery disease or deep…

In vascular ultrasound, augmentation refers to the sudden increase in blood flow velocity within a vessel due to distal compression. This maneuver is crucial for assessing venous patency and competence, particularly in diagnosing deep vein thrombosis (DVT). When a healthy vein is compressed distally to the transducer, a surge in flow should be observed as…