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不明原因下腰背痛（ＬＢＰ）是人群中一种常见症状，是某些西方国家成人初次就诊的第二病因［１，２］。ＳＰＥＣＴ已被认为是诊断ＬＢＰ的有用手段［３］。我们按照国际原子能机构（ＩＡＥＡ）制定的研究方案，于１９９７年８月～１９９８年２月对３１例患者进行了研究，现报
Low back pain (LBP) is a common symptom in the population for unknown reasons and is the second leading cause of adult first-time treatment in some western countries [1,2]. SPECT has been considered a useful tool for the diagnosis of LBP [3]. In accordance with the research program developed by the International Atomic Energy Agency (IAEA), 31 patients were studied from August 1997 to February 1998,