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目的探讨64层螺旋CT重组技术测量枕骨髁解剖学结构在临床颅颈外科中的应用价值。方法用游标卡尺对20例枕骨髁干标本进行测量,用CT分别对20例枕骨髁干标本及20例颅脑外伤患者进行扫描,薄层数字图像通过部分重组,用图像存档和通信系统进行骨窗的信息分析。测量的指标包括左右侧枕骨髁的高度、宽度、长度,及中轴平面测量枕骨髁上模拟的理想螺钉入路中线与正中矢状面的夹角。将获得的数据进行统计学分析比较。结果游标卡尺测量所得结果,枕骨髁的平均高度、长度、平均宽度、轴向平面枕骨髁的平均角度等结果均较CT成像技术测量所得结果略小,但差异无统计学意义(P>0.05)。结论螺旋CT薄层数字图像,通过部分重组,能较好应用于临床科研中,其测量数据真实可靠,有较高科研价值。
Objective To investigate the value of 64-slice spiral CT reconstruction technique in measuring the anatomic structure of occipital condyles in clinical cranial and cervical surgery. Methods 20 cases of occipital condylar specimens were measured by vernier caliper, 20 cases of occipital condylar stem specimens and 20 cases of craniocerebral trauma were scanned by CT. The digital images of rabbits were partially reconstructed by image archiving and communication system. Information Analysis. Measurement indicators include the left and right lateral occipital condyle height, width, length, and the mid-axis plane measurement of the occipital condyle simulated ideal screw midline and the median sagittal angle. The data obtained were statistically analyzed and compared. Results vernier caliper measurement results, the average height, length, average width of the occipital condyle, the average angle of the axial plane occipital condyle and other results were slightly smaller than the CT imaging results obtained, but the difference was not statistically significant (P> 0.05). Conclusion The thin-layer digital images of spiral CT can be applied to clinical research through partial reorganization. The measured data are reliable and reliable, and have high scientific value.