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Three cases of renal agenesis are presented, representing the spectrum of abnormality seen in utero. Severe oligohydramnios was seen in all three cases. In two cases ultrasound demonstrated fetal paraspinal structures resembling kidneys, while in the third no renal shapes were identified. The...
A new computerized image processing system was developed and applied clinically for three‐dimensional visualization and volume calculation of cardiac structures, which were recorded in more than seven original two‐dimensional echocardiograms in parallel planes. Three‐dimensional display of this...
This report reviews four cases with vaginal bleeding and early ultrasound diagnosis of abnormal pregnancy before nine weeks gestation, who were followed by serial ultrasound examinations and subsequently diagnosed as hydatidiform mole. The findings support the view that hydatidiform mole may...
Mammalian multicellular tumor spheroids (MTS), grown in liquid culture medium, 0.23 to 0.32 mm in diameter and consisting of 4,500 to 12,100 cells, were exposed to three ultrasonic machines: a clinical diagnostic device with an emitted intensity of 13 mW/cm2, a therapeutic machine with emitted...
The action of reflection and refraction in producing shadows and enhancement in ultrasonic echograms behind cystic structures is well known, but the physical explanations usually used are incomplete. In this paper the emergent beam patterns for a number of cases are plotted and this data used to...
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