Comparison of the precision of two vertebral morphometry programs for the Lunar EXPERT-XL imaging densitometer Export

@article{citeulike:1696998, abstract = {Comparative precision tests of the vertebral height measurement function of the Aberdeen Vertebral Morphometry System (AVMS) software and Lunar EXPERT-XL software were undertaken using four vertebrae from the same lateral spine dual energy X-ray absorptiometry (DXA) image of the same subject (male, 67 years). Two of the vertebrae were abnormal and two were normal. Three observers inexperienced in morphometry and one experienced observer took part in the study. Repeatability was obtained from 10 sequential measurements of the posterior, middle and anterior heights at the same sitting by the same observer. Intraobserver reproducibility compared the means of one set of measurements for all vertebrae with another taken 1 week later. Interobserver reproducibility compared the means of one set of measurements for all vertebrae from an experienced and an inexperienced observer, and from two inexperienced observers. The AVMS software had significantly higher (p < 0.05) repeatability (mean coefficient of variability, CV = 3.5\%) than the Lunar software (mean CV = 5\%), significantly higher (p < 0.01) intraobserver reproducibility (mean CV = 4.6\%) than the Lunar software (mean CV = 8.5\%), and significantly higher (p < 0.05) interobserver reproducibility (mean CV = 4.7\%) than the Lunar software (mean CV = 7.5\%). In conclusion, the new AVMS method possessed higher precision when measuring both abnormal and normal vertebrae and when used by both experienced and inexperienced observers.}, address = {Osteoporosis Research Unit, Aberdeen Royal Hospitals, Woolmanhill, Aberdeen AB25 1GR, United Kingdom}, author = {Harvey, S. B. and Hutchison, K. M. and Rennie, E. C. and Hukins, D. W. L. and Reid, D. M.}, citeulike-article-id = {1696998}, citeulike-linkout-0 = {http://www.scopus.com/record/display.url?view=extended&origin=resultslist&eid=2-s2.0-0031966995}, journal = {Br. J. Radiol.}, keywords = {avms, dxa, shape, spine}, number = {APR.}, pages = {388--398}, posted-at = {2007-09-26 12:31:06}, priority = {0}, title = {Comparison of the precision of two vertebral morphometry programs for the Lunar EXPERT-XL imaging densitometer}, url = {http://www.scopus.com/record/display.url?view=extended&origin=resultslist&eid=2-s2.0-0031966995}, volume = {71}, year = {1998} }

TY - JOUR ID - citeulike:1696998 L3 - citeulike-article-id:1696998 N2 - Comparative precision tests of the vertebral height measurement function of the Aberdeen Vertebral Morphometry System (AVMS) software and Lunar EXPERT-XL software were undertaken using four vertebrae from the same lateral spine dual energy X-ray absorptiometry (DXA) image of the same subject (male, 67 years). Two of the vertebrae were abnormal and two were normal. Three observers inexperienced in morphometry and one experienced observer took part in the study. Repeatability was obtained from 10 sequential measurements of the posterior, middle and anterior heights at the same sitting by the same observer. Intraobserver reproducibility compared the means of one set of measurements for all vertebrae with another taken 1 week later. Interobserver reproducibility compared the means of one set of measurements for all vertebrae from an experienced and an inexperienced observer, and from two inexperienced observers. The AVMS software had significantly higher (p < 0.05) repeatability (mean coefficient of variability, CV = 3.5%) than the Lunar software (mean CV = 5%), significantly higher (p < 0.01) intraobserver reproducibility (mean CV = 4.6%) than the Lunar software (mean CV = 8.5%), and significantly higher (p < 0.05) interobserver reproducibility (mean CV = 4.7%) than the Lunar software (mean CV = 7.5%). In conclusion, the new AVMS method possessed higher precision when measuring both abnormal and normal vertebrae and when used by both experienced and inexperienced observers. IS - APR. JF - Br. J. Radiol. AD - Osteoporosis Research Unit, Aberdeen Royal Hospitals, Woolmanhill, Aberdeen AB25 1GR, United Kingdom EP - 398 TI - Comparison of the precision of two vertebral morphometry programs for the Lunar EXPERT-XL imaging densitometer VL - 71 SP - 388 KW - avms KW - dxa KW - shape KW - spine AU - Harvey, SB AU - Hutchison, KM AU - Rennie, EC AU - Hukins, DWL AU - Reid, DM PY - 1998/// UR - http://www.scopus.com/record/display.url?view=extended&origin=resultslist&eid=2-s2.0-0031966995 ER -