The aim of this study was to determine the effects oxytocin and carazolol administration on uterine blood flow by pulsed-wave Doppler ultrasonography (USG) evaluate influences these drugs involution. Thirty primiparous suckling Kiwircik ewes were divided into 3 groups: carazolol, oxytocin, control. underwent transcutaneous B-mode USG in 1st week after birth, examinations continued via transrect...

Measurement of systolic time intervals (STI), an index of left ventricular (LV) systolic function, is usually labour intensive and requires considerable expertise to perform accurately. We have evaluated the accuracy of an automated, continuous and non-invasive STI measurement technique using a descending aortic blood velocity Doppler signal obtained using a transoesophageal echo-Doppler system...

SUMMARY A range-gated pulsed Doppler flowmeter has recently been developed that measures the average velocity of blood flow within a small tear-drop shaped (4 mm by 2 mm) sample volume. Unlike the continuous wave Doppler, the distance from the transducer face to the sampling site can be continuously varied by a range adjustment knob. Twenty patients with cardiac murmurs were evaluated in a noni...

Objective. To show that pulsed ultrasound from a clinical ultrasonic imaging system can stimulate the fetus. Stimulation is defined mainly as increased fetal gross body movements in response to excitation. Methods. Fetuses of a group of 9 volunteer women (mean gestational age, 33.37 weeks; range, 25–40 weeks) were evaluated for body movement under 3 different conditions: (1) control, with no ul...

BACKGROUND Patients with indeterminate form of Chagas disease/cardiac normality (ICD/CN) exhibited normal electrocardiograms and chest X-rays; however, more sophisticated tests detected some degree of morphological and functional changes in the heart. OBJECTIVE To assess the prevalence of systolic and diastolic dysfunction of the right ventricle (RV) in patients with ICD/CN. METHODS This wa...