全脊柱X光攝影(whole spine radiography)在臨床醫學上診斷脊柱側彎(scoliosis)或是脊柱畸形等相關疾病是非常重要的檢查項目，對於脊柱側彎的診斷治療與管理是不可或缺的，全脊柱X光攝影可以準確的並可定量的測量脊柱側彎的角度(Cobb’s angle)並可用以評估與監測脊柱側彎的彎曲角度演進。另已證實在孩童及青少年時期對於接受游離輻射的曝露傷害是比較敏感的，而此病症又好發於青春期女性及兒童，故對於病人所接受的輻射劑量更應重視。本研究之目的為使用最新的平板式數位X光機並以熱發光劑量計置於人形假體內外進行模擬前後位與側位的全脊柱X光攝影檢查，以研究此全脊柱X光檢查對檢查範圍內各組織器官所接受的輻射吸收劑量。研究結果：前後位檢查測得皮膚的體表入射輻射劑量是最高的1.315 mGy，甲狀腺為0.440 mGy，乳房為0.265 mGy，卵巢為0.284 mGy。右側位檢查測得輻射劑量在左乳房為0.363 mGy比右側乳房的0.035 mGy 高達約10.5倍，在左卵巢為0.331 mGy比右側卵巢0.063 mGy高達約5.3倍。由平板式數位X光機檢查所得到的影像品質更好，可以減少臨床醫師因品質不佳而增加額外的影像檢查，可以提高醫療品質及增進病人輻射安全。

The whole-spine-radiography or full-spine-radiography is an important tool in clinical diagnosis of diseases related to spinal deformity. Especially in the scoliosis, it is indispensable in diagnosis, treatment, and management. The whole spine radiography can determine the Cobb’s angle precisely, which can be used in evaluation and monitoring of the evolution progression of scoliosis. Some evidences show that children and teenagers are sensitive to radiation exposure, while scoliosis is prone to appear in female teenager and children. Therefore the radiation dose due to radiography is a major concern. This study uses the latest version of flat panel digital x-ray detectors and puts thermoluminescent dosimeters inside Rando phantom in Anterio-Posterior position, and Lateral position to simulate the radiation dose received by internal organs during whole-spine-radiography. Our results show that for front and back positions, the radiation dose from skin penetration is highest at a value of 1.315 mGy, 0.440 mGy in thyroid, 0.265 mGy in breasts, and 0.284 mGy in ovary. For the right side position, the left breast receive dose of 0.363 mGy, which is 10.5 times higher than that in the right breast of 0.035 mGy. Similarly, the dose in left ovary (0.331 mGy) is 5.3 times higher than that in the right ovary (0.063 mGy). The flat-panel digital X ray detector can provide better image quality, therefore it reduce the excess dose when using poor quality image from older technology. Such advantage helps to improve quality of medical treatment and patients’ radiation safety.