Spiral laminar flow in arteries?

Lancet. 1991 Nov 30;338(8779):1360-1.
Stonebridge PA, Brophy CM.
Vascular Surgery Unit, Royal Infirmary, Edinburgh, UK.

Spiral blood-flow patterns in infrainguinal blood-vessels were observed at angioscopy in 54 patients who underwent peripheral vascular reconstruction; the endoluminal surface had spiral folds in 51 of 75 arteries examined. Spiral flow patterns, congruous with inherent endoluminal anatomical features, might more accurately represent blood-flow in infrainguinal arteries than current models of laminar flow.

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