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Biomedical subjects

V Poll

Publications and source records attributed to V Poll.

8 recordsLinked to original sources
PubMed1988

Alterations in appendicular skeletal mass in patients with rheumatoid, psoriatic, and osteoarthropathy.

Appendicular bone mass was measured in a series of 50 patients with non-steroid treated rheumatoid arthritis, 20 with polyarticular seronegative psoriatic arthritis, and 30 with osteoarthrosis, and compared with that of 40 controls of similar age and sex. Distal forearm bone mineral content was reduced in patients with rheumatoid and psoriatic arthritis and increased in those with osteoarthrosis. The increase in bone mass in patients with osteoarthrosis was confined to those with isolated large joint disease and was not found in those with primary generalised osteoarthrosis.

Arthritis↗
PubMed1986

Broadband ultrasonic attenuation in the os calcis and single photon absorptiometry in the distal forearm: a comparative study.

The measurement of broadband ultrasonic attenuation (BUA) in the os calcis has been described recently but the method has not been compared with other non-invasive techniques for the assessment of bone mass. We have compared the measurement of BUA in the os calcis with single-photon absorptiometry of the distal forearm in 44 subjects. A highly significant positive correlation was found between these two measurements (r = 0.80, p less than 0.001). Day to day repeatability was assessed for both techniques, with coefficients of variation of 3.9% and 1.4%, respectively, being obtained. Broadband ultrasonic attenuation appears to be a potentially useful bone measurement in the appendicular skeleton.

Adult↗
PubMed1982

The breech head and its ultrasound significance.

Breech babies were shown to have a smaller mean biparietal diameter (BPD) neonatally compared with that of a matched group of vertex babies. This was due to a mild skull deformation which occurred in at least one-third of 100 consecutive term breech babies examined. Features of this skull deformation (dolichocephaly, a prominent occiput with a suboccipital shelf, an elongated face and a parallel-sided head) constitute the 'breech head'. The caliper-determined occipitofrontal/biparietal diameter ratio (OFD/BPD) in these newborn infants was consistently above 1 . 30. This ratio, when calculated from sonar examination in the third trimester, was also found to correlate well with the 'breech head' shape. The identification by ultrasound of these babies should prevent the misdiagnosis of fetal growth retardation based on serial BPD measurements alone.

Birth Weight↗
PubMed1979

An improved method of fetal weight estimation using ultrasound measurements of fetal abdominal circumference.

A simple and accurate method is described for estimating fetal weight from a single fetal abdomen circumference measurement at the level of the umbilical vein. The abdominal circumference was converted into a weight centile for the maturity at the time of measurement so that the weight at delivery could be predicted. This method was tested on a population of fetuses presenting by the breech near term. Although the error between actual and predicted weights was 194 g (1 SD) for all the patients, for a large well-defined subgroup the error was much smaller, being only 104 g (1 SD).

Abdomen↗
PubMed1976

Precision of ultrasonic fetal cephalometry.

Ultrasonic measurement of the biparietal diameter is a frequently used technique in the assessment of fetal maturity. The popularity of this technique is based partly upon the claim that it can be performed with considerable presicion, but recently published work has not supported this claim. This paper describes a blind clinical trial in which the precision of a single biparietal measurement was determined under normal clinical conditions. The results show that this measurement can be determined with a precision better than +/- 1.6 mm (+/- 2 standard deviations). The clinical significance of this result is discussed.

Cephalometry↗