Colleagues: The Subject (a timely one) is Turbulence

The nemesis of the Vascular Surgeon and Sonographer is turbulence. The precise mathematical description of it is the elusive goal of scientists of every stripe and from every era– from the carefully-purposed-strokes of ink on the ancient Japanese silk-canvas seascape art to fractal algorithms– and beyond.

Though lifetimes have come and gone throughout the long discussion, we thought it proper to share a poetic example—the very best one—for us to renew our passion for, expand our thinking of, and pause to appreciate the gift of Flow.


The Straight of Saltstraumen in Norway is a small narrowing of land with one of the strongest tidal currents in the world.  For the last 3,000 years, up to 110 billion gallons of seawater forces its way through a 500-foot wide, two-mile-long orifice, every six hours.

Short of committing to a live visit, pause, enjoy and take visual measure of the concepts of peak velocity, variable volume flow, stenotic segment length, fluid viscosity, and post-stenotic chamber dimension… all in 4-D.  And if you’re an educator using this to illustrate your points, be certain to include the concepts of 60-degree incidence, pulsed vs continuous Doppler, and small-vs-large gate sampling… and their potential inapplicability.

Your thoughts here will perfectly complement the underlying beauty of this natural Norwegian phenomenon, just as does your clinical service to others in the Field.


Enjoy where your mind (and the water) takes you….

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