Value of a Lower-Limb Immobilization Device for Optimization of SPECT/CT Image Fusion.

Details

Serval ID
serval:BIB_AEA0A969278D
Type
Article: article from journal or magazin.
Collection
Publications
Title
Value of a Lower-Limb Immobilization Device for Optimization of SPECT/CT Image Fusion.
Journal
Journal of Nuclear Medicine Technology
Author(s)
Machado Jdo M, Monteiro M.S., Vieira V.F., Collinot J.A., Prior J.O., Vieira L., Pires-Jorge J.A.
ISSN
1535-5675 (Electronic)
ISSN-L
0091-4916
Publication state
Published
Issued date
2015
Peer-reviewed
Oui
Volume
43
Number
2
Pages
98-102
Language
english
Notes
Publication types: Journal Article Publication Status: ppublish
Abstract
The foot and the ankle are small structures commonly affected by disorders, and their complex anatomy represents a significant diagnostic challenge. By providing information on anatomic and bone structure that cannot be obtained from functional imaging, SPECT/CT image fusion can be particularly useful in increasing diagnostic certainty about bone pathology. However, because of the lengthy duration of a SPECT acquisition, a patient's involuntary movements may lead to misalignment between SPECT and CT images. Patient motion can be reduced using a dedicated patient support. We designed an ankle- and foot-immobilizing device and measured its efficacy at improving image fusion.
METHODS: We enrolled 20 patients who underwent SPECT/CT of the ankle and foot with and without a foot support. The misalignment between SPECT and CT images was computed by manually measuring 14 fiducial markers chosen among anatomic landmarks also visible on bone scintigraphy. ANOVA was performed for statistical analysis.
RESULTS: The absolute average difference without and with support was 5.1 ± 5.2 mm (mean ± SD) and 3.1 ± 2.7 mm, respectively, which is significant (P < 0.001).
CONCLUSION: The introduction of the foot support significantly decreased misalignment between SPECT and CT images, which may have a positive clinical influence in the precise localization of foot and ankle pathology.
Pubmed
Open Access
Yes
Create date
17/06/2015 14:10
Last modification date
20/08/2019 15:18
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