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2.
Figure 8

Figure 8. From: Patient-specific finite element based analysis of ventricular myofiber stress after Coapsys: Importance of residual stress..

Myofiber stress at ES. (a) PRE-OP model; (b) VIRTUAL-COAPSYS:SUBACUTE model. Unit: kPa.

Richard Carrick, et al. Ann Thorac Surg. ;93(6):1964-1971.
3.
Figure 5

Figure 5. From: Patient-specific finite element based analysis of ventricular myofiber stress after Coapsys: Importance of residual stress..

End-systolic (A) and end-diastolic (B) pressure-volume relationship for all four finite element model simulations.

Richard Carrick, et al. Ann Thorac Surg. ;93(6):1964-1971.
4.
Figure 6

Figure 6. From: Patient-specific finite element based analysis of ventricular myofiber stress after Coapsys: Importance of residual stress..

Stroke volume versus end-diastolic pressure relationship for all four finite element model simulations.

Richard Carrick, et al. Ann Thorac Surg. ;93(6):1964-1971.
5.
Figure 7

Figure 7. From: Patient-specific finite element based analysis of ventricular myofiber stress after Coapsys: Importance of residual stress..

Average end-diastolic and end-systolic myofiber stress in infarct and remote LV regions for all four finite element model simulations.

Richard Carrick, et al. Ann Thorac Surg. ;93(6):1964-1971.
6.
Figure 2

Figure 2. From: Patient-specific finite element based analysis of ventricular myofiber stress after Coapsys: Importance of residual stress..

Contoured short-axis cardiac MR images before (A) and after (B) surgical implantation of the Coapsys device. The contours from multiple short-axis images covering the LV from apex to base were used to create patient-specific 3D finite element models.

Richard Carrick, et al. Ann Thorac Surg. ;93(6):1964-1971.
7.
Figure 3

Figure 3. From: Patient-specific finite element based analysis of ventricular myofiber stress after Coapsys: Importance of residual stress..

Two views of the unloaded post-Coapsys finite element model showing (A) the PRE-OP model and (B) the COAPSY SUBACUTE model showing the double pad side of the device. Infarct regions are colored with red while the remote regions are colored with green.

Richard Carrick, et al. Ann Thorac Surg. ;93(6):1964-1971.
8.
Figure 4

Figure 4. From: Patient-specific finite element based analysis of ventricular myofiber stress after Coapsys: Importance of residual stress..

Schematic of FE model development. 1 = determination of diastolic and systolic material parameters by comparison of experimental and computationally derived end-diastolic and end-systolic volume. 2 = the acute mechanical effect of Coapsys (VIRTUAL-COAPSYS:ACUTE). 3 = the effect of residual stress (Comparison between VIRTUAL-COAPSY: SUBACUTE and POST-OP models).

Richard Carrick, et al. Ann Thorac Surg. ;93(6):1964-1971.

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