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Comparison of Fetal Head Circumference Measurements Using Standard and Long Linear-Array Transducers

Roy A. Filly, MD

University of California, School of Medicine, Department of Radiology, L-374, San Francisco, CA 94143.

The authors compared relative fetal head circumference measurements between 8- and 12-cm 3.5-MHz lineararray transducers in a sonographic system that can generate a computed ellipse. The head circumference obtained from the 12-cm transducer was employed as the standard against which the 8-cm transducer was compared. Employing the computer-generated ellipse, the authors accurately predicted head circumference with the 8-cm transducer despite the transducer's inability to visualize the entire calvarial perimeter in any case.

Key Words: head circumference, fetal • transducers, sonographic • biometry, fetal

Journal of Diagnostic Medical Sonography, Vol. 4, No. 1, 2-4 (1988)
DOI: 10.1177/875647938800400102


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