Ultrasonic Tissue Characterization with Common B-mode Device: GLHW

Fetal Diagnosis with Ultrasonic Actocardiogram and GLHW Tissue Characterization

Actocardiogram: Ultrasonic Doppler actocardiogram was simultaneous tracing of FHR and fetal movement signals on the monitoring chart, created in 1984 by Maeda. Fetal behavior was easily studied, false-positive nonreactive FHR and physiological sinusoidal FHR were differentiated, the severity of fetal CNS lesion and common fetal disorders were determined, short and long-term outcomes were diagno...

Non-invasive Diagnosis of Fetal Lung Prematurity with GLHW Ultrasound Tissue Characterization

Non-invasive diagnosis of fetal lung immaturity. Ultrasound gray level histogram width (GLHW) tissue characterization was studied in fetal lung. GLHW ratio of fetal lung and liver was multiplied by gestational weeks, and fetal lung immaturity was diagnosed, if the product was less than 29. Ninety six per cent of neonatal respiratory distress syndrome (RDS) was predicted noninvasively in immatur...

Estimation of myocardial infarct size with ultrasonic tissue characterization.

BACKGROUND Ultrasonic tissue characterization (UTC) can distinguish normal from infarcted myocardium. Infarcted myocardium shows an increase in integrated backscatter and loss of cardiac cycle-dependent variation in backscatter. The cyclic variation of backscatter is closely related to regional myocardial contractile function; the latter is a marker of myocardial ischemia. The present study was...

Ultrasonic Characterization of Materials with Applications in Bone Tissue Modeling

Myocardial ultrasonic tissue characterization in patients with thyroid dysfunction

BACKGROUND Structural myocardial abnormalities have been extensively documented in hypothyroidism. Experimental studies in animal models have also shown involvement of thyroid hormones in gene expression of myocardial collagen. This study was planned to investigate the ability of ultrasonic tissue characterization, as evaluated by integrated backscatter (IBS), to early identify myocardial invol...