Results 211 to 220 of about 99,187 (266)

Inter-observer and intra-observer variation in bone histomorphometry

Calcified Tissue International, 1986
Inter-observer variation has been examined for a number of histomorphometric indices in 20 normal human iliac crest biopsies. Quantitation was performed using an eye-piece graticule and eye-piece micrometer. The same sections were examined by two observers and the methodology was identical. Intra-observer variation was also assessed.
S Vedi, J E Compston
exaly   +3 more sources

Comments on the observability of coronal variations

Solar Physics, 1988
The observable variability of spectral lines in the soft X-ray and XUV region is discussed. Rapid variability of coronal emission, both in flaring and non-flaring structures, has been reported and is particularly prominent when high spatial resolution is available.
Leon Golub, Alice C. Quillen, Thomas W. Hartquist   +2 more
openaire   +1 more source

Observer variation in the detection of osteopenia

Skeletal Radiology, 1986
In order to determine observer variation in the detection of osteopenia, 15 pairs of lateral chest radiographs obtained within two weeks of each other were reviewed separately by two radiologists and one orthopedist on three separate occasions. Intra- and interobserver variations were calculated for each individual film and film pairs using Kappa ...
D M, Epstein, M K, Dalinka, F S, Kaplan, J M, Aronchick, D L, Marinelli, H L, Kundel   +5 more
openaire   +2 more sources

Observer variation and depressive phenomenology

Psychological Medicine, 1977
SynopsisAn investigation into observer variation and depressive phenomenology is described. A group of 6 clinicians independently completed a 43-item sheet for 20 depressed patients at the same clinical interview. The coefficient of agreements on the items are given.
A, Verghese, G, Burrows, G, Foenander, J, Stevenson, B, Davies   +4 more
openaire   +2 more sources

Observer variation in skeletal radiology

Skeletal Radiology, 1983
The factors that affect observer variation in bone radiology are analysed from data in the literature and on the basis of studies carried out at McMaster University on the hands and sacroiliac joints. A plea is made for presenting results in terms of Kappa statistics so that agreement due purely to chance is eliminated.
W P, Cockshott, W M, Park
openaire   +2 more sources

Observer Variation in Bronchographic Diagnosis

The British Journal of Radiology, 1958
Observer variation* in the interpretation of chest radiographs has been estimated by a number of workers (Birkelo, Chamberlain, Phelps, Schools, Zacks and Yerushalmy, 1947; Cochrane and Garland, 1952; Fletcher and Oldham, 1949; Garland, 1949; Springett, 1956; Stradling and Johnston, 1953; Yerushalmy, Harkness, Cope and Kennedy, 1950; Yerushalmy ...
B, GANDEVIA, P, STRADLING
openaire   +2 more sources

Observer Variation in Abdominal CT

Investigative Radiology, 1984
Observer performance in radiologic interpretation has traditionally been based upon Receiver Operating Characteristic (ROC) analysis. A statistical method that evaluates the reproducibility or consistency of radiologic interpretation is presented. Since this method is not based upon pathologic verification, it cannot be used to assess accuracy of ...
S, Herman, G, DeBoer, D F, Rideout, I F, Majesky   +3 more
openaire   +2 more sources

Intra‐observer and inter‐observer variation of Hertel exophthalmometry

Ophthalmic and Physiological Optics, 2009
Abstract Purpose:  This study investigated the intra‐observer and inter‐observer variation of Hertel exophthalmometry. Methods:  Seventy normal Chinese adults had bilateral exophthalmometry performed by two examiners.
Andrew K C, Lam, Chun-fai, Lam, Wai-kit, Leung, Pui-kwan, Hung   +3 more
openaire   +2 more sources

Observer variation in assessing renal scarring

The British Journal of Radiology, 1980
To examine the extent of variation between experienced observers in recognizing renal scarring, 60 intravenous urograms from schoolgirls with bacteriuria were presented separately to three radiologists with a major interest in the radiology of the urinary tract.
E W, Fletcher, G J, Griffiths, L A, Williams, M S, McLachian   +3 more
openaire   +2 more sources

Beat to beat and observer variation of the electrocardiogram

American Heart Journal, 1968
Abstract The BBV of selected ECG measurements was studied in an all male series consisting of 29 subjects with and 29 without heart disease. Nine consecutive beats of each of the 58 3-lead orthogonal records, selected to show minimal base-line disturbance, were converted by computer into enlarged digital plots.
E, Fischmann, J, Cosma, H V, Pipberger
openaire   +2 more sources