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In a cross‐sectional study, umbilical artery velocity waveforms were recorded in 214 low‐risk pregnancies at 7 weeks to 16 weeks, menstrual age, by means of transvaginal color and pulsed Doppler ultrasonography. In all the cases studied, end diastolic velocities were absent until the 10th week....
In an in vitro study, 10 gallbladders of adult pigs and 6 gallbladders of lambs, all removed immediately after slaughtering, were stimulated in a water bath by electric means to induce active contraction. Gallbladder emptying was followed by ultrasonography employing five measurement procedures:...
An in vitro sonographic model was developed to simulate the transvaginal sonographic appearance of hair‐containing cystic teratomas of the ovary. Two groups of patients with ovarian teratomas were compared: group A—consisting of 32 patients scanned before the simulation model was used, and group...
Abdominal complications were evaluated with ultrasonography in 20 patients who received marrow‐ablative chemotherapy and bone marrow or blood stem cell transplantation for the treatment of hematologic malignancies. Ultrasonographic findings compatible with veno‐occlussive disease of the liver,...
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