Long-term in-vitro precision of direct digital X-ray radiogrammetry
(2011) In Skeletal Radiology 40(12). p.1575-1579- Abstract
- Digital X-ray radiogrammetry (DXR) calculates peripheral bone mineral density (BMD) from hand radiographs. The short-term precision for direct DXR has been reported to be highly satisfactory. However, long-term precision for this method has not been examined. Thus, the aim of this study was to examine the long-term in-vitro precision for the new direct digital version of DXR. The in-vitro precision for direct DXR was tested with cadaver phantoms on four different X-ray systems at baseline, 3 months, 6 months, and in one machine also at 12 months. At each time point, 31 measurements were performed. The in-vitro longitudinal precision for the four radiographic systems ranged from 0.22 to 0.43% expressed as coefficient of variation (CV%). The... (More)
- Digital X-ray radiogrammetry (DXR) calculates peripheral bone mineral density (BMD) from hand radiographs. The short-term precision for direct DXR has been reported to be highly satisfactory. However, long-term precision for this method has not been examined. Thus, the aim of this study was to examine the long-term in-vitro precision for the new direct digital version of DXR. The in-vitro precision for direct DXR was tested with cadaver phantoms on four different X-ray systems at baseline, 3 months, 6 months, and in one machine also at 12 months. At each time point, 31 measurements were performed. The in-vitro longitudinal precision for the four radiographic systems ranged from 0.22 to 0.43% expressed as coefficient of variation (CV%). The smallest detectable difference (SDD) ranged from 0.0034 to 0.0054 g/cm(2). The in vitro long-term precision for direct DXR was comparable to the previous reported short-term in-vitro precision for all tested X-ray systems. These data show that DXR is a stable method for detecting small changes in bone density during 6-12 months of follow-up. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2208117
- author
- Dhainaut, Alvilde ; Hoff, Mari ; Kalvesten, Johan ; Lydersen, Stian ; Forslind, Kristina LU and Haugeberg, Glenn
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Digital X-ray radiogrammetry, Precision, Rheumatoid arthritis, Osteoporosis, Bone mineral density
- in
- Skeletal Radiology
- volume
- 40
- issue
- 12
- pages
- 1575 - 1579
- publisher
- Springer
- external identifiers
-
- wos:000296067100010
- scopus:80755190109
- pmid:21560007
- ISSN
- 1432-2161
- DOI
- 10.1007/s00256-011-1187-2
- language
- English
- LU publication?
- yes
- id
- 6a3e120d-fd52-4378-a694-b567af656781 (old id 2208117)
- date added to LUP
- 2016-04-01 13:24:13
- date last changed
- 2022-03-06 05:42:47
@article{6a3e120d-fd52-4378-a694-b567af656781, abstract = {{Digital X-ray radiogrammetry (DXR) calculates peripheral bone mineral density (BMD) from hand radiographs. The short-term precision for direct DXR has been reported to be highly satisfactory. However, long-term precision for this method has not been examined. Thus, the aim of this study was to examine the long-term in-vitro precision for the new direct digital version of DXR. The in-vitro precision for direct DXR was tested with cadaver phantoms on four different X-ray systems at baseline, 3 months, 6 months, and in one machine also at 12 months. At each time point, 31 measurements were performed. The in-vitro longitudinal precision for the four radiographic systems ranged from 0.22 to 0.43% expressed as coefficient of variation (CV%). The smallest detectable difference (SDD) ranged from 0.0034 to 0.0054 g/cm(2). The in vitro long-term precision for direct DXR was comparable to the previous reported short-term in-vitro precision for all tested X-ray systems. These data show that DXR is a stable method for detecting small changes in bone density during 6-12 months of follow-up.}}, author = {{Dhainaut, Alvilde and Hoff, Mari and Kalvesten, Johan and Lydersen, Stian and Forslind, Kristina and Haugeberg, Glenn}}, issn = {{1432-2161}}, keywords = {{Digital X-ray radiogrammetry; Precision; Rheumatoid arthritis; Osteoporosis; Bone mineral density}}, language = {{eng}}, number = {{12}}, pages = {{1575--1579}}, publisher = {{Springer}}, series = {{Skeletal Radiology}}, title = {{Long-term in-vitro precision of direct digital X-ray radiogrammetry}}, url = {{http://dx.doi.org/10.1007/s00256-011-1187-2}}, doi = {{10.1007/s00256-011-1187-2}}, volume = {{40}}, year = {{2011}}, }