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Biomedical subjects

A F Turner

Publications and source records attributed to A F Turner.

At least 37 records · Page 2Linked to original sources
PubMed1977

Phonoangiography by autocorrelation.

Phonoangiography, as a noninvasive quantitative analysis of arterial bruits, was conducted just prior to standard invasive radiographic angiography in 135 patients. Sound records from 162 carotid arteries were analyzed with a new processing technique employing a high speed analog acoustic analyzer, the autocorrelator. In 18 arteries with carotid stenosis, a correlation coefficient of 0.87 resulted between phonoangiographic diameter predictions and radiographic diameter estimates. Bruit analysis identified two patients with patent lumen diameters, but tortuous carotid vessels. One hundred thirty-three carotid arteries had no bruits that could be analyzed, but angiograms showed no extracranial stenosis. Four arteries from which bruits could not be analyzed were found to be totally occluded. Carotid phonoangiography appears applicable in approximately one of seven patients now requiring angiography of head and neck vessels. When applicable, phonoangiography is significantly correlated with angiographic findings.

Adult↗
PubMed1976

Lymphedema tarda.

The clinical recognition and evaluation of congenital lymphedema of the lower extremities with abrupt onset in a 51-year-old man are reviewed. A rational, systematic approach is outlined and exemplifies the use of an interdisciplinary effort to achieve accurate diagnosis through readily available diagnostic procedures.

Age Factors↗
PubMed1976

Diagnostic features of right ventricular myxoma.

The clinical diagnostic features of right ventricular myxoma are described in a recent patient and related to the 15 cases previously reported. The presence of a pulmonic systolic ejection murmur with a delayed (120 to 140 msec.) and accentuated pulmonic second sound, or calcification in the region of the right ventricular outflow tract should suggest this lesion. Cardiac catheterization with angiocardiography in diagnostic. Ga scanning may assist in the diagnosis and followup after surgical removal of the myxoma. Early surgical removal will avoid the possibility of sudden death.

Adult↗
PubMed1976

Arthrography in penetrating injuries.

Arthrography in cases of trauma to joints may provide valuable information about joint disruption as well as the location of foreign bodies. Allergy to contrast agents and bleeding diathesis are the only contraindications. Four cases are presented that demonstrate the usefulness of this technique.

Adult↗
PubMed1976

Single monitor stereoradiological television system using PLZT electrooptic shutters.

A new family of materials consisting of lead lanthanium zirconate titanate (PLZT) has evolved from recent advances in ferroelectric ceramics. PLZT electrooptic ceramics may be used as electronically triggered high-contrast optical shutters in lightweight stereoscopic viewing devices. A PLZT electrooptic shutter stereoradiology system in which dual x-ray tubes are used to generate stereo pairs of fluoroscopic images is presented. This system requires only a single television monitor for stereoscopic viewing by one or more observers. The viewer which contains the optical shutters is compact, light-weight, and can be attached easily to normal eyeglasses.

Humans↗
PubMed1976

Swyer-James (Macleod's) syndrome. Variations in pulmonary-bronchial arterial blood flow.

The Swyer-James (Macleod's) syndrome (or unilateral hyperlucency of the lung) frequently presents a diagnostic problem. Two cases of this entity are reported that demonstrate its similarity to and differentiation from pulmonary embolism and other intrapulmonic disorders. Detailed roentgenologic and physiologic studies were performed to define the diagnostic criteria of this syndrome. The reciprocal relationship of the bronchial arterial circulation in the hyperlucent lung was described.

Adult↗
PubMed1970

Stereostethoscope.

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Auscultation↗