Application of computerised image analysis to monitoring endodontic therapy: reproducibility and comparison with visual assessment.
作者： E Kerosuo , D Orstavik
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摘要: Objective To evaluate the intra- and interexaminer reproducibility of computerised image analysis for assessment periapical bone changes based on gray value ratio when compared with a visual method. Methods 353 radiographs obtained in clinical endodontic study were analysed. Densitometric analyses used to density following treatment. The diseased area apical periodontitis' (AP) 'normal area' (AN) defined ratios values (AP/AN) calculated each radiograph. Periapical index (PAI) was as 'gold standard'. Correlation coefficient (r), Kappa (kappa), t-test matched pairs statistics. Results method proyed be reproducible intra-examiner re-examinations, r ranging from 0.7 0.84 (P Conclusions system seems an appropriate tool detect dental at group level.
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