腰椎正側位影像主要可以診斷:腰椎的骨折(fracture)或脫位(dislocation)、壓力反應(Stress reaction)、椎弓斷裂(Spondylolysis)、狹窄(stenosis)、脊椎滑脫(Spondylolisthesis)、僵直性脊椎炎(Ankylosing Spondylitis)等異常。本研究用三種不同的攝影技術照射腰椎側位的受檢者:(1)X光球管向腳打5~10度,(2)X光球管垂直照射並在受檢者腰部下方放軟墊,(3)X光球管向腳打5~10度,並在受檢者腰部下方放軟墊,與傳統攝影技術(X光球管不打角度亦不在受檢者腰部下方放軟墊)做比較,且分別針對受檢者的體型(胖、中、瘦)做分析,探討何種攝影技術可以取得較佳腰椎正側位影像。結果發現將X光球管向腳打5~10度的攝影技術可以取得較佳的腰椎正側位影像,其中又以體型中及瘦為多,而體型胖的則是維持傳統攝影技術為佳。
We can find the abnormities that including fracture, dislocation, stress reaction, spondylolysis, spondylolisthesis, ankylosing spondylitis, stenosis of lumbar spine from a true lateral lumbar spine lateral image. In the study, we divided the lateral lumbar spine position into: (1) X-ray tube turned 5 to 10 degrees caudated. (2) X-ray tube vertical exposure and put a radiolucent support under the patient's waist and (3)X-ray tube turned 5 to 10 degrees caudated and put a radiolucent support under the patient's waist, to compare with the traditional technique (X-ray tube vertical exposure and no support under the patient's waist).Furthermore according to the body type of the patient (fat, average size, thin), we analyze which technique will get the optimal true lateral lumbar spine image. The results revealed that X-ray tube turned 5 to 10 degrees caudated will get the optimal true lateral lumbar spine images, the majority of them belong to the thin and average size group. As the result we inferred that for the fat patient the traditional technique can be maintained.