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. Author manuscript; available in PMC: 2014 Jun 25.
Published in final edited form as: Am J Obstet Gynecol. 2012 Dec 7;208(2):153.e1–153.13. doi: 10.1016/j.ajog.2012.11.043

Figure 1. Ventricular volume in end-systole and end-diastole as a function of gestational age in the presence of increased placental vascular impedance to flow.

Figure 1

Ventricular volume calculations in fetuses with an umbilical artery pulsatility index > 95th percentile (ABN) were compared to 184 normal fetuses (NL)40 (A: left ventricle in end-systole; B: right ventricle in end-systole; C: left ventricle in end-diastole; D: right ventricle in end-diastole). For the left ventricle, mean volumes (adjusted for gestational age) (mL) were lower in both end-systole (ABN: 0.12 vs. NL: 0.43; p < 0.0001) and end-diastole (ABN: 0.64 vs. NL: 1.28; p < 0.0001). For the right ventricle, mean volumes (adjusted for gestational age) (mL) were also lower in both end-systole (ABN: 0.39 vs. NL: 0.65; p < 0.0001) and end-diastole (ABN: 1.09 vs. NL: 1.57; p < 0.0001)