Krug, K. B., Weber, C., Schwabe, H., Sinzig, N. -M., Wein, B., Mueller, D., Wegmann, K., Peters, S., Sendler, V., Ewen, K., Hellmich, M. and Maintz, D. (2014). Comparison of image quality using a X-ray stereotactical whole-body system and a direct flat-panel X-ray device in examinations of the pelvis and knee. Rofo-Fortschr. Gebiet Rontgenstrahlen Bildgeb. Verfahr., 186 (1). S. 67 - 77. STUTTGART: GEORG THIEME VERLAG KG. ISSN 1438-9010

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Abstract

Purpose: The novel biplanar X-ray unit EOS, EOS Imaging, allows to acquire simultaneously 2 perpendicular planes of full-length spine and limbs and to measure spatially correct angles based on the acquired image data sets. This is to be seen alongside with a low spatial resolution, high investment costs and high operating expenses. The use of the biplanar X-ray unit in morphology based scelettal radiography might improve the cost-benefit-relation. Thus, the purpose of this study was to compare image quality of the EOS-unit and the flat panel (FP)-technology as reference in a clinical setting. Materials and Methods: All 114 patients of the Orthopedic Hospital Dept., who had a biplanar full-length lower limb radiograph and a FP-examination of the pelvis and/or the knee with maximum time interval of 3 months without changes in the clinical and radiological findings were included in the study. All X-ray examinations had been carried out due to clinical indications. Secondary captures comparable to the FP-images were extracted from the electronic EOS-image data sets. 4 radiologists independently from each other compared the visualization of normal anatomical structures of the pseudonymous EOS- and FP-images in a randomized order. Results: In the overwiew of all readers and all sceletal regions image quality of the FP-images was considered being superior in a mean of 83 +/- 13 % standard deviation of the pair comparisons (minimum 48 %, maximum 100 %). Image quality of the EOS-images was assessed as being superior in 2 +/- 3 % of the cases (0 %, 10 %). Image quality of 0.8 +/- 3 % of the FP-images (0 %, 17 %) and 30 +/- 34 % (0 %, 100 %) of the EOS-images was estimated as diagnostically inadequate. 30 +/- 33 % of the pair comparisons (0 %, 100 %) showed a diagnostically inadequate image quality of the EOS-images and a diagnostically good image quality of the FP-images. Conclusion: Image quality of biplanar full-length lower limb X-ray examinations is not suitable to be used for the diagnostic assessment of the morphological bone structure using the currently available technological setting. Key points: biplanar full-length lower limb X-ray examinations plat-panel radiography image quality

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Krug, K. B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Weber, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schwabe, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sinzig, N. -M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wein, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mueller, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wegmann, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Peters, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sendler, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ewen, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hellmich, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Maintz, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-451257
DOI: 10.1055/s-0033-1350441
Journal or Publication Title: Rofo-Fortschr. Gebiet Rontgenstrahlen Bildgeb. Verfahr.
Volume: 186
Number: 1
Page Range: S. 67 - 77
Date: 2014
Publisher: GEORG THIEME VERLAG KG
Place of Publication: STUTTGART
ISSN: 1438-9010
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
BIPLANAR-RADIOGRAPHS; DIGITAL MAMMOGRAPHY; EOS; POSITIONS; ACCURACY; PHANTOM; 3DMultiple languages
Radiology, Nuclear Medicine & Medical ImagingMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/45125

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