Clinical validity of two different grading systems for lumbar central canal stenosis: Schizas and Lee classification systems.
PLoS One
; 15(5): e0233633, 2020.
Article
en En
| MEDLINE
| ID: mdl-32459814
ABSTRACT
OBJECTIVE:
To assess the learnability of two magnetic resonance imaging (MRI) grading systems for lumbar central canal stenosis based on inter-observer agreement and test-retest reliability of doctors with no prior knowledge of the two systems. MATERIALS ANDMETHODS:
Two clinical fellows, one novice radiology resident, one neurosurgeon, and one orthopedic surgeon, who were unaware of the two qualitative MRI grading systems prior to this study, acquainted themselves with the teaching files. All five observers independently assessed the LCCS grade of 70 patients using T2-weighted axial magnetic resonance images at the L2-3, L3-4, L3-4, and L5-S1 disc levels. Analysis was performed twice at an interval of two months.RESULTS:
The inter-observer agreement among all five readers was excellent and test-retest reliability was moderate to excellent for both the Schizas and Lee systems. Positive percentage agreements were found to be over 0.8 in almost all observers with relatively narrow 95% confidence limits.CONCLUSION:
Both Schizas and Lee MRI grading systems for LCCS are reliable grading systems, and can be used as a learnable method for both clinicians and radiologists.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Estenosis Espinal
/
Índice de Severidad de la Enfermedad
/
Imagen por Resonancia Magnética
/
Disco Intervertebral
/
Vértebras Lumbares
Tipo de estudio:
Qualitative_research
Límite:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
PLoS One
Asunto de la revista:
CIENCIA
/
MEDICINA
Año:
2020
Tipo del documento:
Article