Trouerbach, W.T.

value radiograph eq values variation density coefficient method mineral precision difference change x-ray measurement study table investigation session patient bone mineral image wedge radiographic phalanx exposure technique bone mineral content pattern analysis object mandible eq value computer order chapter group tissue volunteer content interpretation curve sample bmme values influence result structure system experiment x-ray beam period aluminum correlation effect distance evaluation densitometric reproducibility direction traject procedure error comparison bone density alveolar number processing microdensitometric frequency light deviation determination 0.04 bone pattern instrument x-ray film exposure time observer bone scan relation information thickness