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Detection of small alveolar bone lesions by digital subtraction radiography



Detection of small alveolar bone lesions by digital subtraction radiography



Zhonghua Kou Qiang Yi Xue Za Zhi 33(2): 70-72



To employ digital subtraction radiography (DSR) system developed by our school and co-ordinative unit, for diagnosis of small artificial alveolar bone lesions, in order to evaluate the system. Seventy-two 0.2-0.9 mm3 lesions were produced in premolar and molar areas of the dry human mandibles. The reference and subsequent radiographs were taken before and after lesions being made. The small lesions were detected by conventional radiographs and by DSR method respectively. As for 0.2-0.5 mm3 lesions, the detections by both DSR and conventional methods were less than 50%. As for 0.7 mm3 lesions, the detection by DSR and conventional methods were 57.5% and 38.7%, respectively (P < 0.01). As for 0.9 mm3 lesions, the accuracy of the detection by DSR and conventional methods was 89.3% and 57.3% (P < 0.01). The detectability of small alveolar bone lesions by DSR system was obviously superior to the conventional method.

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Accession: 045742897

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PMID: 11774691


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