On the determination of the angular orientation of a vertebra.
In this paper we consider the spatial orientation of vertebrae. We take the view that, in determining their rotation angles from X-rays, the procedure applied by Drerup yields the most reliable empirical results, viz. the three angles through which a vertebra rotates about its own symmetry axes in a specific sequence. With a view to the further use of this information to analyze deformations or the motion of a spine we recommend that the Drerup angles be converted into the well-known Eulerian angles. How this can be done is the subject of this report.
Goris
B C E
BC
Department of Biomedical Engineering, Faculty of Medical Sciences, University of Groningen, The Netherlands.
Kuipers
M
M
De Vries
J
J
Wever
D J
DJ
Verkerke
G J
GJ
Veldhuizen
A G
AG
D000465:Algorithms; D001696:Biomechanical Phenomena; D006801:Humans; D008954:Models, Biological; D009068:Movement / Q000502:physiology; D011859:Radiography; D012399:Rotation; D013131:Spine / Q000000981:diagnostic imaging / Q000502:physiology*