MRI versus CT for the diagnosis of lumbar spinal stenosis - 15/05/12
Corresponding author. Tel.: +82 2 513 8150; fax: +82 2 513 8146.
Bienvenue sur EM-consulte, la référence des professionnels de santé.
Article gratuit.
Connectez-vous pour en bénéficier!
Summary |
Objective |
The purpose of the study was to compare the effectiveness of CT and MRI in visualizing soft tissues in lumbar spinal stenosis (LSS), and to correlate the images with preoperative symptoms.
Materials and methods |
A total of 163 patients who had undergone unilateral laminotomy for bilateral decompression to treat LSS at L4–5 were retrospectively analyzed. The narrowed spinal canal area was measured on axial images with CT and MRI, and compared with the acquired dimensions from preoperative Visual Analog Scale (VAS) and Oswestry Disability Index (ODI) scores.
Results |
The mean compromised spinal canal areas were 75.08mm2 on MRI and 63.13mm2 on CT, which were significantly different. Mean VAS for back pain was 5.37, and 7.94 for leg pain. Mean ODI was 55.17%. There was no significant correlation noted between clinical parameters and narrowed spinal canal area.
Conclusion |
Spinal canal area was more narrowed on CT than on MRI in axial cuts. This finding can be explained by the superior ability of multidetector CT to discriminate cortical bone from soft tissue such as the ligamentum flavum. Our study highlights the value of CT examination in combination with MRI prior to LSS surgery.
Le texte complet de cet article est disponible en PDF.Keywords : Lumbar spinal stenosis, Canal area, MRI, CT, Preoperative examination
Plan
Vol 39 - N° 2
P. 104-109 - mai 2012 Retour au numéro
Article précédent
- Volumétrie de l’ischémie cérébrale en IRM de diffusion et déficit fonctionnel secondaire après thrombolyse intraveineuse
- A. Attyé, M.-P. Boncoeur-Martel, A. Maubon, C. Mounayer, P. Couratier, A. Labrunie, J.-F. Le Bas
- Inflammatory pseudotumors of the head and neck in pathology-proven cases
- D.T. Ginat, A. Bokhari, S. Bhatt, V. Dogra
Bienvenue sur EM-consulte, la référence des professionnels de santé.