64 層CT 多向調整多平面重組診斷
長骨病變的價值
陳海松 柳澄 陳青華
【摘要】 目的 前瞻性研究64 層CT 的多向調整多平面重組( MPR) 在長骨病變中的應用價值,
及其替代直接掃描橫斷面圖像及平片的可能性。方法 對平片發現的長骨病變進行64 層CT 各向
同性掃描, 然后進行MPR 成像, 并進行MPR 多方向調整, 使病變顯示于長骨的冠狀及矢狀長軸面上。
其中50 例進行了手術并有病理診斷結果, 就其長軸面MPR 圖像、直接掃描CT 橫斷面圖像、平片對病
變的診斷符合率進行對比, 并對比長軸面MPR 與直接掃描橫斷面CT 的圖像數量。結果 64 層CT
多向調整的長軸面MPR 對病變的診斷符合率為96 % ( 48 /50 例) , 高于直接掃描CT 橫斷圖像( 72% ,
36 / 50 例) 及平片( 80 % , 40 /50 例) , 3 種方法比較, 差異有統計學意義( χ2
= 10. 71、6. 06, P 值均<
0. 05) , 而圖像數量明顯少于橫斷面CT( MPR 50 幅圖像, 橫斷面CT 300 幅圖像) 。結論 多向調整的
長軸面MPR 解決了多層CT 圖像數量龐大的問題, 并提高了診斷符合率, 是長骨病變CT 診斷的
趨勢。
【關鍵詞】 體層攝影術, Χ線計算機; 圖像處理, 計算機輔助; 骨疾病
The value of mult i-dir ection adjusted multiplanar reconst ruction using 64-slice CT in diagnosing long
bone disea ses CHEN Hai-song* , LIU Cheng, CHEN Qing-hua. Shandong University Medical School,
Shandong Provincia l Medical Imaging Institute, Jinan 250021, China ( * Now in: 250021 Postgra duate of
Shandong University Medical School, Jinan)
Corresponding author: LIU Cheng, Email: cjr. liucheng@vip. 163. com
【Abstra ct 】 Objective To study the value of multi-direction adjusted multiplanar reconstruction
( MPR) by 64-slice CT in diagnosing long bone diseases, and the possibility of the MPR to replace plain film
and CT direct-scanning axial images. Methods Long bone lesions discovered by plain films were scanned
by 64- slice CT using isotropic parameters. Then multi-direction MPR were performed to display long-axial of
lesions on coronal and sagittal planes besides axial images. 50 patients were performed surgical operations
and pathological diagnosis were obtained. The coincident diagnosing rate with pathological results were
compared statistically among multi-direction MPR , direct-scanning axial CT images, plain films; Amounts of
images were also compared between long axial MPR and direct scanning axial CT images. Results The
coincident diagnosing rate of long bone diseases by multi-direction adjusted long-axial MPR imaging was
96% ( 48 /50 ) , which was higher than by axial CT( 72%, 36 /50 ) and plain film( 80% , 40 /50 ) , The
differences between above every two modalities were significant ( χ2 = 10. 71, 6. 06; P < 0. 05) . The amount
of long-axial MPR images was much fewer than that of axial CT images ( MPR 50 images, axial CT 300
images ) . Conclusion Multi-direction adjusted long-axial MPR has solved the problem of too large amounts
of images by multi-slice CT , and it improves the coincident diagnosing rate, and it is the trend of CT
diagnosing of long bone lesions.
【Key words】 Tomography, X-ray computed; Image processing, computer-assisted; Bone
diseases

64 層CT 多向調整多平面重組診斷--骨格.rar