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Biomedical subjects

W N Mason

Publications and source records attributed to W N Mason.

8 recordsLinked to original sources
PubMed1991

Clinical application of computerized continuous-infusion pressure-monitored sialography.

The clinical application of computerized continuous-infusion pressure-monitored sialography using an aqueous contrast medium during the investigation of 296 salivary glands is described. A comparison between the pressure changes and the sialographic features revealed a significant (P less than 0.001) correlation between raised filling pressure (greater than 60 mmHg) and the presence of an obstructive lesion (stricture, mucous plug, sialolith). Occasionally a raised filling pressure was observed although the associated sialography films were normal. The sensitivity of the technique was 86.4%. It is concluded that the monitoring of pressure changes occurring during sialography can alert the clinician to the presence of high filling pressure and may also provide additional evidence of obstructive changes within salivary glands.

Adolescent↗
PubMed1977

Continuous infusion pressure-monitored sialography.

A technique for sialography has been developed which gives reproducible radiographs. By employing a constant infusion pump to deliver 0.2 ml of contrast medium per minute the patient does not experience pain and glandular detail is not obscured due to overfilling. Aqueous and oily contrast media may be used satisfactorily but there is greater latitude in times of exposure with the aqueous media.

Contrast Media↗
PubMed1976

Application of xeroradiography in sialography.

Sialography was carried out in healthy volunteers and in patients with Sjögren's syndrome. A comparison was made between xeroradiography and conventional radiography. Superior images were obtained with xeroradiography and this technique also tended to reveal glandular structure which was obscured by overlying bone when using conventional radiography. In addition to this, there was considerably greater latitude in exposure and the skin dose of radiation using xeroradiography was slightly less.

Humans↗