Published in:
01-10-2013 | Musculoskeletal
Proton magnetic resonance spectroscopy in the evaluation of patients with acute Charcot neuro-osteoarthropathy
Authors:
Francesca Bolacchi, Luigi Uccioli, Salvatore Masala, Laura Giurato, Valeria Ruotolo, Marco Meloni, Eleonora Baffari, Elenia Cinelli, Marcello Cadioli, Ettore Squillaci, Giovanni Simonetti, Alberto Bergamini
Published in:
European Radiology
|
Issue 10/2013
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Abstract
Objective
To evaluate whether bone marrow proton magnetic resonance spectroscopy (MRS) might provide a quantitative parameter able to assess disease activity in acute Charcot neuro-osteoarthropathy (CN).
Methods
Ten diabetic patients with stage 0 CN were prospectively evaluated at clinical onset and during treatment follow-up. The MRS lipid spectrum was analysed and a lipid polyunsaturation index (PUI) was calculated. Disease recovery was defined as the disappearance of bone marrow oedema as demonstrated on MRI short-tau-inversion-recovery (STIR) images. A 3-T MRI was used.
Results
Inter- and intra-individual PUI measurements generated reproducible results with approximately 7 % and 6 % variation respectively. Baseline PUI values were significantly higher in patients with acute CN compared with controls. Also, a significant positive correlation was observed between baseline PUI values and serum levels of IL-6 and TNF-α. During follow-up a gradual decrease in PUI was observed. The percentage reduction of PUI values at 3 months’ follow-up with respect to baseline values showed a negative correlation with recovery time.
Conclusions
Bone marrow MRS may provide a measurable index that allows progressive evaluation of disease activity in acute CN. MRS may be a complementary tool that can be used to guide clinicians in the management of acute CN patients.
Key Points
• Bone marrow MRS demonstrates lipid alterations in acute Charcot neuro-osteoarthropathy (CN).
• Bone marrow MRS allows disease activity in acute CN to be evaluated.
• MRS could become a new tool in the management of CN.