This study examined the blood flow velocities and flow patterns in the normal dog using pulsed wave spectral Doppler echocardiography in eight areas of the heart. Two breeds of dogs, aged between 8 and 112 weeks and of both sexes, were used. The dogs were fully conscious and no drugs were used. The areas examined were the mitral valve, left atrium, tricuspid valve, right atrium, aorta, left ventricular outflow tract, pulmonary valve and the right ventricular outflow tract. The peak and mean velocities, direction of flow and whether flow was systolic or diastolic was determined for each of these flow areas. Additionally each of these waveforms were described. Aortic flow was also measured from the thoracic inlet by continuous wave Doppler.

Serial echographic evaluation of the uterine wound after lower uterine segment caesarean section was performed on 48 puerperal patients. Similar examinations after vaginal delivery were carried out on 14 puerperal patients. The aim of this study was to determine whether evidence of abnormal healing could be detected by this method. Although three distinctive patterns were noted, no correlation with clinical findings could be made and no conclusions could be drawn.

Summary: Between January and September 1985, 476 patients underwent two-dimensional and M-mode echocardiography . Left ventricular bands were noted in 104 of these individuals. Of these patients, 89 (85.6%) WCIY refemd for evaluation of a systolic murmur. In view of this high incidence of association between left ventricular bands and systolic murmurs, we decided to perform a prospective analysis on patients with the classical vibratory systolic murmur (Still's murmur) which is commonly found in children and young adults. The incidence of lcti ventricular bands would be compared with a group of individuals in whom no cardiac murmurs could be detected. It was hoped in this way to possibly determine whether there was a definite relationship between the vibratory systolic murmur and left ventricular bands. Echocardiographs were performed using an Advanced Tcchnical Laboratories machine and gain settings were adjusted such that all artefacts and normal structures could easily be distinguished from the ventricular bands. The vcntricular bands were divided into two types. Of significance, we felt, were those which crossed the left ventricular outflow tract and which could therefore have been responsible for the production of turbulence and thus a niuniiur reminiscent of the Still's murmur. This type of Icft ventricular band was noted in 76% of our patients with Still's niuniiurs as opposed to only 14% of the individuals without any murmur (p