Matadial Ojha, PhD, Richard S. C. Cobbold, PhD, K

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Presentation transcript:

Influence of angle on wall shear stress distribution for an end-to-side anastomosis Matadial Ojha, PhD, Richard S.C. Cobbold, PhD, K.Wayne Johnston, MD, FRCS(C) Journal of Vascular Surgery Volume 19, Issue 6, Pages 1067-1073 (June 1994) DOI: 10.1016/S0741-5214(94)70219-5 Copyright © 1994 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 1 Photochromic tracer method shows (a) optical and (b) photographic sections. Journal of Vascular Surgery 1994 19, 1067-1073DOI: (10.1016/S0741-5214(94)70219-5) Copyright © 1994 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 2 Line drawings of trace displacement profiles for four anastomosis angles at times of (a) 60, (b) 120, (c) 180, and (d) 240 msec in flow cycle. Center of figure shows flow waveform. Journal of Vascular Surgery 1994 19, 1067-1073DOI: (10.1016/S0741-5214(94)70219-5) Copyright © 1994 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 3 Sketch of double helical-type flow pattern of high inertia fluid seen with 45-degree angle anastomosis model for steady flow and also for pulsatile flow at around peak systole. (From J VASC SURG 1990;12:747–53. With permission). Journal of Vascular Surgery 1994 19, 1067-1073DOI: (10.1016/S0741-5214(94)70219-5) Copyright © 1994 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 4 Wall shear stress waveforms at indicated sites of the anastomoses. Points represent averaged of five measurements, and connecting lines are spline-fitted profiles through data points. Journal of Vascular Surgery 1994 19, 1067-1073DOI: (10.1016/S0741-5214(94)70219-5) Copyright © 1994 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

Fig. 5 Mean and range of phase-averaged waveforms shown in Fig. 4. Journal of Vascular Surgery 1994 19, 1067-1073DOI: (10.1016/S0741-5214(94)70219-5) Copyright © 1994 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions