Quantification of sonographic echogenicity with grey-level histogram width: a clinical tissue characterization

Ultrasound in Medicine & Biology
K MaedaP E Kihaile

Abstract

Grey-level histogram width (GLHW) values obtained by common sonographic devices were large in echogenic image and small in less echoic parts. The Aloka UIP-100 computer system, SSD-680, and Toshiba SSA-270A sonographs showed GLHW values not significantly different when tested with RMI-412 phantom with the device contrast set at the lowest level. No influence on the GLHW value was observed by the changes of device gain, STC or image depth in the range of clinical practice. Device contrast control influenced the value. Although two sonographs showed significant differences from UIP-100, they were easily corrected by a small factor. Normal ranges of GLHW values of the placenta were obtained every 2 weeks, from 20 to 41 weeks, in 222 normal pregnancies measured by old scanners. GLHW values of normal pregnancies measured by the new Aloka and Toshiba machines were distributed within the normal ranges, and those of Grannum Grade III abnormally echogenic placenta were greater than the upper normal range. GLHW is a reproducible value among commercial ultrasonic devices, and the value is useful in clinical practice. Manual and automated GLHW values were identical.

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Citations

May 13, 1999·Ultrasound in Medicine & Biology·K MaedaM Serizawa
May 7, 2010·Journal of Perinatal Medicine·Tomoyuki KuwataMitsuaki Suzuki
Apr 22, 2009·AJR. American Journal of Roentgenology·Ricardo Bernardi SoderVinícius Duval da Silva
Oct 26, 2012·AJR. American Journal of Roentgenology·Richard H MarshallNancy K Davis
Sep 8, 2000·American Journal of Veterinary Research·W T DrostT W Lehenbauer
Apr 15, 2008·Gynécologie, obstétrique & fertilité·E Quarello
Aug 26, 2014·Journal of Perinatal Medicine·Michiko YamaguchiToshiyuki Takeshita
Jul 22, 2015·Prenatal Diagnosis·Edwin QuarelloGuillaume Gorincour
Nov 26, 2005·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·I TekesinS Schmidt
Apr 18, 2012·Journal of Clinical Ultrasound : JCU·Tung-Yang YuChien-Hung Chen
Apr 18, 2016·Diagnostic and Interventional Imaging·E QuarelloG Gorincour
Mar 1, 2015·Gynécologie, obstétrique & fertilité·E QuarelloG Gorincour
Oct 19, 2010·Ultrasound in Medicine & Biology·Mariko Serizawa, Kazuo Maeda
Sep 25, 2016·Research in Veterinary Science·Tommaso BanzatoAlessandro Zotti
Dec 1, 2007·Journal of Medical Ultrasonics·Takashi ItoKazuo Maeda
Jul 1, 2014·Journal of Medical Ultrasonics·Yao-Hung TsaiRobert Wen-Wei Hsu

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