Ces radiol. 2016, 70(1):16-22 | DOI: 10.55095/CesRadiol2016/003

What is the degree of agreement among different evaluators at the lumbar spine MRI examinations?Original article

Miroslav Heřman1, Pavel Urban2,3, Bohumír Procházka2, Eva Čecháková1, Lucia Veverková1, Zuzana Sedláčková1, Lumír Hrabálek4, Tomáš Wanek4, Přemysl Stejskal4, Manuela Vaněčková5, Jiří Vaňásek6, Pavel Ryška6
1 Radiologická klinika LF UP a FN, Olomouc
2 Státní zdravotní ústav, Praha
3 Klinika pracovního lékařství 1. LF UK a VFN, Praha
4 Neurochirurgická klinika LF UP a FN, Olomouc
5 Radiodiagnostická klinika 1. LF UK a VFN, Praha
6 Radiologická klinika LF UK a FN, Hradec Králové

Aim: To assess differences in the evaluation of degenerative changes of the lumbar spine MRI among experienced radiologists, radiology residents and other specialists.

Method: Nine evaluators from three groups: experienced radiologists (ER), radiology residents (RR) and non-radiologists (NR) independently assessed MRI examinations of the lumbar spine of 55 patients. All segments of the lumbar spine were evaluated for presence and degree of severity of changes in seven parameters: disc height, disc protrusion or herniation, vertebral body signal changes, spondylolisthesis, dorsal osteophytes, arthritic changes on the intervertebral joints and thickness of ligamenta flava. Statistical evaluation of the degree of agreement among multiple observers was made in individual segments of the lumbar spine by Fleiss kappa; the degree of severity of MRI findings was assessed by Friedman test and pairwise multiple comparisons by Nemenyi post hoc test.

Results: Degree of agreement in the overall MRI comparison in individual segments of the lumbar spine ranged from 0.32 to 0.80 kappa values, most frequently from 0.5 to 0.7 - it was moderate or substantial. Testing of the degree of severity of MRI findings showed a statistically significant differences (p < 0.0001) among individual evaluators. In each group of evaluators (ER, RR, NR) was always one evaluator who differed significantly from the other two. These differences were smallest among experienced radiologists.

Conclusion: We found statistically significant differences in the assessment of MRI findings among individual evaluators and also within groups of evaluators. These differences were smallest in the group of experienced radiologists.

Keywords: MRI, lumbar spine, evaluation
Grants and funding:

Práce vznikla za podpory grantu IGA MZ č. NT/14471.

Accepted: February 15, 2016; Published: March 1, 2016  Show citation

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Heřman M, Urban P, Procházka B, Čecháková E, Veverková L, Sedláčková Z, et al.. What is the degree of agreement among different evaluators at the lumbar spine MRI examinations? Ces radiol. 2016;70(1):16-22. doi: 10.55095/CesRadiol2016/003.
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    References

    1. Ústav zdravotnických informací a statistiky České republiky, aktuální informace č. 2, 2013. s. 2.
    2. Lötters F, Burdorf A, Kuiper J, et al. Model for the work-relatedness of low-back pain. Scand J Environ Health 2003; 29(6): 431-440. Go to original source... Go to PubMed...
    3. Laštovková A, Nakládalová M, Fenclová Z, et al. Low-back pain disorders as occupational diseases in the Czech Republic and 22 European countries: A comparison of national systems, related diagnoses and evaluation criteria. Centr Eur J Public Health 2015; 23(3): 244-251. Go to original source... Go to PubMed...
    4. Nakládalová M, Ehler E, Hlávková J, et al. Bolesti v zádech jako nemoc z povolání. Prac. Lék. 2014; 66(2-3): 94-97.
    5. Landis JR, Koch GG. An application of hierarchical kappa-type statistics in the assessment of majority agreement among multiple observers. Biometrics 1977; 33(2): 363-374. Go to original source...
    6. Dušek L, Pavlík T, Koptíková J. Analýza dat v neurologii. VI. Přesnost, spolehlivost a reprodukovatelnost měření u diskrétních dat. Česk Slov Neurol N 2007; 70/103(6): 719-721.
    7. Hlávková J, Lebeda T, Tichý T, et al. Evaluation of the lumbar spine load with the computational method for the purpose of acknowledging the low-back disorders as occupational diseases. Centr Eur J Public Health - v tisku.
    8. Mariconda M, Galasso O, Imbimbo L, Lotti G, Milano C. Relationship between alterations of the lumbar spine, visualized with magnetic resonance imaging, and occupational variables. Eur Spine J 2007; 16: 255-266. Go to original source... Go to PubMed...

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