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Quantitative assessment of fetal bowel echogenicity: Comparison of harmonic, compound, and fundamental sonographic images by Hak Jong Lee; Jeong Yeon Cho is a Medicine article available to read on EtoBox.

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## Abstract ## Purpose The aims of this study were to assess normal fetal bowel echogenicity quantitatively and to compare the levels of bowel echogenicity observed with the use of 3 different sonographic image‐processing techniques—harmonic plus compound imaging, harmonic imaging alone, and fundamental imaging—and 2 different broadband transducers. ## Methods Women with normal singleton second‐trimester fetuses underwent sonographic scanning with both a 2–5‐MHz and a 4–7‐MHz transducer. The use of the 3 imaging techniques and the 2 transducers resulted in 6 types of images: 2–5‐HC (harmonic plus compound images), 2–5‐H (harmonic images), and 2–5‐F (fundamental images), and 4–7‐HC, 4–7‐H, and 4–7‐F images. The relative echogenicities (brightness) of the fetal bowel and iliac bone were measured, and bowel echogenicity ratios (bowel echogenicity/iliac bone echogenicity × 100) were calculated using graphics software. The resulting data were analyzed to evaluate differences in echogenicity ratios between the 6 types of images. ## Results We examined 37 fetuses during the study period. The bowel echogenicity ratios were highest on the images obtained with harmonic and compound—imaging t

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Author

Hak Jong Lee; Jeong Yeon Cho

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0091-2751)

Published

2003

Language

EN

Field

Medicine (Health Sciences)