Myocardial infarction impaired wall mechanics and hemodynamics in peripheral arteries

Figures

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  FIGURE 1. (A) Schematic representative of experimental protocol: echocardiographic and hemodynamic measurements were demonstrated at postoperative 3 and 6 weeks; (B) Overview of the utilized extension-inflation setup with inserted artery. 1. Camera; 2. Stereomicroscope; 3. Test chamber; 4. Three-way valve; 5. Base of installation; 6. Mechanical sensor; 7. Needle; 8. Blood vessel sample; 9. Catheter; 10. Calcium-free solution; 11. Oxygen tanks and pressure valves.

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  FIGURE 2. Circumferential (A) and axial (B) first PK stresses ( Tθθ and Tzz ) as a function of circumferential stretch ratio in carotid arteries of SHAM-3 (n = 5), SHAM-6 (n = 5), MI-3 (n = 5) and MI-6 (n = 5) rats ( λz = 1.4) (marked with error bars of SD). (C, D) show values in femoral arteries corresponding to (A, B).

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  FIGURE 3. Flow velocity profiles (m/s) in the carotid artery at time instances of trough (A) and peak (B) flows. (C, D) show values in femoral arteries corresponding to (A, B).

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  FIGURE 4. Transient WSS waves (unit: dynes/cm2) in the carotid artery of SHAM-3 (A), SHAM-6 (B), MI-3 (C) and MI-6 (D). (E–H) show values in femoral arteries corresponding to (A–D).