Posterior spinal cord indentation: imaging findings and clinical outcome.
Clin Radiol
; 75(8): 615-621, 2020 08.
Article
em En
| MEDLINE
| ID: mdl-32299618
ABSTRACT
AIM:
To identify the imaging findings associated with worse clinical outcome in posterior spinal cord indentation. MATERIALS ANDMETHODS:
A retrospective search for cases of dorsal cord indentation on magnetic resonance imaging (MRI) from April 2009 to March 2016 was undertaken. Imaging follow-up and clinical data were recorded. Two neuroradiologists blinded to the clinical data assessed the imaging findings. Differences and association of imaging and clinical findings were assessed via t-test and Fisher's exact and chi-squared tests for continuous and categorical data. Inter-rater agreement was calculated.RESULTS:
Seventy-three patients were included, 65 were clinically stable, or the finding was incidental and eight had clinical worsening or required surgery. There was a significant difference in the percentage of cord diameter decrease between the two clinical groups (p=0.013, reader 1; p=0.027 reader 2). The clinical course was significantly associated with subjective cord indentation depth assessment (p=0.03 reader 1) and presence of syrinx (p=0.017 reader 2) on original MRI and worsening on imaging follow-up (p=0.03). The interrater agreement was moderate for syrinx identification (k=0.58). There was only fair agreement for the scalpel sign classification and in the final diagnosis (k=0.35 and 0.28).CONCLUSION:
The degree of cord indentation, the presence of syrinx, and worsening of imaging findings on follow-up are associated with worse clinical course and can be useful in guiding management and directing subspecialty referrals.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Medula Espinal
/
Siringomielia
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Imageamento por Ressonância Magnética
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
Limite:
Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Clin Radiol
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Canadá