Systolic Anterior Motion (SAM) Of The Mitral Valve - Left Ventricular Outflow Tract (LVOT) Obstruction | RK.MD
Systolic Anterior Motion (SAM) Of The Mitral Valve - Left Ventricular …
Jan 16, 2018
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LVOT VTI (V₁) The LVOT velocity–time integral (VTI) is obtained using pulsed wave (PW) Doppler in the apical 5-chamber or apical long-axis (3-chamber) view to measure laminar flow across the LVOT. Sweep speed: 100 mm/s Wall filter: low Goal: smooth velocity curve with a well-defined peak The PW sample gate should be placed exactly where the LVOT diameter was measured in the parasternal long-axis view to ensure accurate correspondence between area and velocity. Was this helpful? 💡 Get more resea
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LVOT VTI (V₁) The LVOT velocity–time integral (VTI) is obta…
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The Echo Journal on Instagram: "Inside the full lesson, you’ll learn:⁠ ⁠ The step-by-step Doppler workflow (2D → Color → PW → CW) to confirm dynamic LVOT obstruction⁠ ⁠ The mechanism behind obstruction and what to look for on TTE exams⁠ ⁠ 5 proven steps to sharpen your SAM assessment⁠ ⁠ How to separate MR from true obstruction and capture the highest pressure gradient⁠ ⁠ Provocation strategies (Valsalva, positioning), beat selection, and gradient measurement tips⁠ ⁠ Case clips with window-by-win
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