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KMID : 0896020070370040191
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Korean Journal of Oral and Maxillofacial Radiology
2007 Volume.37 No. 4 p.191 ~ p.195
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Intra- and interobserver agreement of computed tomography in assessment of the mandibular condyle
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Cho Bong-Hae
Jung Yun-Hoa
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Abstract
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Purpose : To study the intra- and interobserver agreement of multidetector row computed tomography (MDCT) in interpretation of degenerative changes of the mandibular condyle.
Materials & Methods : Five observers independently evaluated one hundred temporomandibular joint MDCT
images for signs of osteophytes, erosion, sclerosis and flattening. The intra- and interobserver agreements were
calculated by using Kappa statistics.
Results : The intraobserver agreement was substantial for erosion (k=0.75), flattening (k=0.74) and sclerosis
(k=0.72) and almost perfect for osteophytes (k=0.84). The interobserver agreement was fair for flattening
(k=0.39), moderate for erosion (k=0.58) and sclerosis (k=0.48) and substantial for osteophytes (k=0.75).
Conclusion : This study shows that we can expect good agreement for the presence of osteophytes, but not for
flattening in the interpretation of MDCT images of the condyle. (Korean J Oral Maxillofac Radiol 2007; 37 : 191-5 )
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KEYWORD
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Mandibular Condyle, Tomography, Spiral Computed, Observer Variation
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