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Diagnostic ultrasound ( PDFDrive )

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1276 PART IV Obstetric and Fetal Sonography

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D

E

FIG. 37.3 Cardiac Dimensions. (A) Left ventricular internal dimension versus gestational age. y = 0.049x − 0.262. (B) Right ventricular internal

dimension versus gestational age. y = 0.045x − 0.228. (C) Posterior left ventricular wall thickness versus gestational age. y = 0.012x − 0.063.

(D) Septal thickness versus gestational age. y = 0.012x − 0.088. (E) Left atrial internal dimension versus gestational age. y = 0.040x − 0.214. In

each graph, the 95% conidence limits represent twice the standard error of the mean. (With permission from Allan LD, Joseph MC, Boyd EG,

Campbell S, Tynan M. M-mode echocardiography in the developing human fetus. Br Heart J. 1982;47[6]:573-583. 250 )

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