Table 3.
Ventricular wall thickness/chamber-diameter measured | Measured thickness in ex vivo FLASH | Predicted in vivo diastolic thickness | Predicted diastolic thickness as percentage of measured | Predicted in vivo systolic thickness | Predicted systolic thickness as percentage of measured |
---|---|---|---|---|---|
Interventricular septum | 3.0 ± 0.1 | 1.0 ± 0.0 | 33.3% | 1.7 ± 0.0 | 56.7% |
Left ventricular posterior wall | 3.5 ± 0.3 | 1.3 ± 0.0 | 37.1% | 1.8 ± 0.1 | 51.4% |
Left ventricular diameter | 3.7 ± 0.3 | 6.2 ± 0.1 | 168.6% | 3.5 ± 0.0 | 94.6% |
Data in this table allows comparison of the state of the fixed ex vivo hearts with in vivo contraction states (diastolic/systolic). The in vivo ventricular wall thicknesses are predicted from body-mass using the published equations (fitted to echocardiographic data) [37]. To assist comparison the predicted in vivo diastolic and systolic thicknesses are expressed as a percentage of the measured ex vivo FLASH thickness. The values listed for the thicknesses are mean ± SD. FLASH: fast low angle shot.