Document Detail


Autoalignment of intervertebral disks.
MedLine Citation:
PMID:  17457805     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To develop an automated planning method to obtain double oblique slices for clinically relevant diagnoses of spine-related pathologies. MATERIALS AND METHODS: Thirty healthy volunteers, 18 patients with cervical spine (c-spine) pathologies, and 15 patients with lumbar spine (l-spine) pathologies were included in this study. The planning method requires no interaction and is calculated online on the MR scanner after two sagittal acquisitions (a MR myelogram and standard T2-weighted (T2W) acquisition). The planning of the subsequent double oblique slice packets is calculated automatically. The results from the volunteers were evaluated visually by an operating technician. The results obtained in a clinical trial from interactive planning by an operating technician and from automated planning were compared. RESULTS: Visual assessment of the planned slices in the T2W images of all subjects confirmed the accuracy and robustness of the method for both applications. The differences in positions and orientations between interactively and automatically planned transverse series were within the range of interindividual variability. CONCLUSION: he new approach can be used to automatically plan double oblique MR images for examination of spine-related pathologies with high reliability and robustness. The major advantage is that simultaneous planning in the transversal-coronal and transversal-sagittal orientations can be performed without any additional measurement. Another advantage is that standardized localization of the nerve roots in the center of the image can be obtained.
Authors:
Simone Peschl; Irina Mader; Ralph Strecker; Jürgen Hennig
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of magnetic resonance imaging : JMRI     Volume:  25     ISSN:  1053-1807     ISO Abbreviation:  J Magn Reson Imaging     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-04-30     Completed Date:  2007-06-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9105850     Medline TA:  J Magn Reson Imaging     Country:  United States    
Other Details:
Languages:  eng     Pagination:  938-46     Citation Subset:  IM    
Copyright Information:
(c) 2007 Wiley-Liss, Inc.
Affiliation:
Department of Diagnostic Radiology, Medical Physics, Hospital Freiburg, Hugstetterstrasse 55, 79106 Freiburg, Germany. simone.peschl@tni-medical.de
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Cervical Vertebrae / pathology
Female
Humans
Image Enhancement
Image Processing, Computer-Assisted / methods*
Intervertebral Disk Displacement / diagnosis*
Lumbar Vertebrae / pathology
Magnetic Resonance Imaging / methods*
Male
Middle Aged

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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