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Rabbit alveolar macrophages in suspension were exposed to 5 or 10 min of continuous 2‐MHz ultrasound with 5, 10, and 15 W/cm2 spatial average intensities. Viability as determined by dye exclusion decreased with increasing intensity. Pressure experiments indicated that this was a result of...
Sonographic findings in 16 patients (10 women, six men) with surgically documented gallbladder carcinoma are reported. Two principal forms are described: localized infiltrating, or fungating, tumors (eight patients) and diffuse tumors infiltrating the entire gallbladder wall (eight patients). In...
Preeclampsia, the hypertension of pregnancy, is a high‐risk obstetric situation that can be monitored ultrasonically. Ultrasonic features commonly associated with preeclampsia, including decreased total intrauterine volume (TIUV), oligohydramnios, and intrauterine growth retardation (IUGR), are...
Twenty patients with hydronephrosis in whom examination with ultrasound was helpful in defining the extent of dilation of the collecting system are presented. Thirteen patients had hydronephrosis due to obstruction at the ureteropelvic junction, six had obstruction of the ureterovesical junction...
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