Biomedical subjects

B Kingsley

Publications and source records attributed to B Kingsley.

18 recordsLinked to original sources

PubMed1978

Pocket gonioscopy.

A simple and effective method for viewing the anterior chamber angle allowing a physician to adequately grade the depth of the anterior chamber angle is described. Such a judgment is necessary for distinguishing narrow angle from open angle type of glaucoma.

Adult↗

PubMed1976

Differences in the attenuation of ultrasound by normal, benign, and malignant breast tissue.

In quantitative measurements of the attenuation of ultrasound in 18 samples of variously normal, benign, and malignant breast tissue, we found significantly different ranges of attenuation. As observed in previous in vivo studies, with the exception of medullary carcinoma, malignant tissue produces the most attentuation of ultrasound in the frequency range of 1.5 to 3.0 MHz we employed. The apparatus, measurement method, results, and the possible causes of the differences in attenuation are presented.

Breast Diseases↗

PubMed1976

Echocardiographic diagnosis of left atrial myxoma. Usefulness of suprasternal approach.

Three cases of left atrial myxoma were studied by echocardiography. In one case the atrial tumour was prolapsing through the mitral orifice into the left ventricular cavity; in the other two cases it was not. The angiocardiographic and operative findings correlated well with those from echocardiography. A systematic echocardiographic study is important; the suprasternal approach is useful in the echocardiographic exploration of the left atriu, especially for nonprolapsing tumours.

Adult↗

PubMed1976

New technique for ultrasound imaging.

A new system of ultrasonic imaging has been developed which utilizes optical interferometry. This system has a broad frequency range, wide angular response, and good resolution. Operation of the system and the results of experimental imaging are described. Application of this technique to the evaluation of in vitro tissue specimens demonstrates its capability for characterization of ultrasonic tissue properties.

Humans↗

PubMed1975

Echocardiography in endocardial cushion defects: a preoperative and postoperative study.

Echocardiographic studies were performed on 14 patients with endocardial cushion defects of different anatomic varieties. Four patients were studied again after operation. Patients with partial atrioventricular canal (PAVC) showed multiple systolic echoes on mitral valve echogram, with significant mitral-septal apposition in diastole. The left ventricular outflow (LVO) appeared significantly narrowed. The septal motions were paradoxic. After corrective operation, an increase in the width of the LVO was noted and mitral-septal apposition appeared to be less pronounced. Multiple systolic echoes, however, reappeared and persisted. The echocardiograms in patients with complete atrioventricular canal (CAVC) were characterized by wide excursion of an apparent single atrioventricular valve. The echoes of the mitral component of the common anterior leaflet moved anteriorly into the right ventricular cavity and overshadowed the tricuspid component in diastole. In addition, patients with CAVC and divided and medially attached common anterior leaflets had solitary mitral and tricuspid echograms. This feature differentiates this group of patients from those patients with CAVC with undivided freefloating common anterior leaflet.

Adolescent↗

PubMed1975