Comparison of abdominal aortic hemodynamics between men and women at rest and during lower limb exercise Christopher P. Cheng, MSa, Robert J. Herfkens,

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Presentation transcript:

Comparison of abdominal aortic hemodynamics between men and women at rest and during lower limb exercise Christopher P. Cheng, MSa, Robert J. Herfkens, MDb, Charles A. Taylor, PhDa,c Journal of Vascular Surgery Volume 37, Issue 1, Pages 118-123 (January 2003) DOI: 10.1067/mva.2002.107 Copyright © 2002 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

Fig. 1 Subject pedaling MR-compatible bicycle in 0.5-T open magnet. Journal of Vascular Surgery 2003 37, 118-123DOI: (10.1067/mva.2002.107) Copyright © 2002 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

Fig. 2 Time-resolved blood flow rate (A and B; top) and wall shear stress (C and D; bottom) curves for supraceliac and infrarenal levels of abdominal aorta of representative male subject at rest (A and C; left) and during lower limb exercise (B and D; right). Note that at rest infrarenal region experiences reverse flow and wall shear stress at end systole, whereas supraceliac region does not. Also note that flow rate and wall shear stress increase for entire cardiac cycle for both supraceliac and infrarenal regions during exercise, with complete elimination of reverse flow and wall shear stress. Journal of Vascular Surgery 2003 37, 118-123DOI: (10.1067/mva.2002.107) Copyright © 2002 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions

Fig. 3 Average ± standard deviation of factor increase in blood flow rate (A) and wall shear stress (B) at supraceliac and infrarenal levels of abdominal aorta from rest to exercise for men and women. For both genders, increases in blood flow rate and wall shear stress from rest to exercise were greater at infrarenal level as compared with supraceliac level. Journal of Vascular Surgery 2003 37, 118-123DOI: (10.1067/mva.2002.107) Copyright © 2002 Society for Vascular Surgery and The American Association for Vascular Surgery Terms and Conditions