Volumetric difference evaluation of registered three-dimensional preoperative and postoperative CT volumes

机译：登记的三维术前和术后CT容积的容积差异评价

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A methodology is presented for registering three-dimensional preoperative and postoperative CT scan volumes and for evaluating their differences in selected areas of interest. The proposed method was applied to CT cone beam data from ten patients in order to assess the volume of augmented bone in the alveolar region. A 3D affine model was used to align the preoperative and postoperative data. The differences between the aligned sets were assessed through subtraction radiography. The volume of the differences was finally evaluated by defining regions of interest in each slice of the subtracted 3D data. Both quantitative and qualitative results were obtained after applying the method to all sets. The effectiveness of the volumetric assessment algorithm was verified by applying the algorithm to an object of known volume.

机译：提出了一种用于注册三维术前和术后CT扫描卷的方法，并用于评估它们在所选择的感兴趣区域的差异。该方法应用于来自10名患者的CT锥梁数据，以评估肺泡区中增强骨的体积。 3D仿射模型用于对准术前和术后数据。通过减法射线照相评估对准集之间的差异。最后通过定义减去3D数据的每个切片中的感兴趣区域来评估差异的体积。在将方法应用于所有集合后获得定量和定性结果。通过将算法应用于已知卷的对象来验证体积评估算法的有效性。

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《International Conference on Information Technology and Applications in Biomedicine》|2010年||共4页
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Volumetric difference evaluation of registered three-dimensional preoperative and postoperative CT volumes

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