| 田野,戴燕飞,季达峰.三维二值掩模零化法结合体素绘制法切割及渲染CT与MRI体积数据[J].中国医学影像技术,2023,39(11):1721~1725 |
| 三维二值掩模零化法结合体素绘制法切割及渲染CT与MRI体积数据 |
| 3D binary mask zeroing combined with voxel rendering method for cutting and rendering CT and MRI volume data |
| 投稿时间：2023-06-01 修订日期：2023-09-13 |
| DOI：10.13929/j.issn.1003-3289.2023.11.029 |
| 中文关键词: 体层摄影术,X线计算机 磁共振成像 零化法三轴切割 体素渲染 |
| 英文关键词:tomography, X-ray computed magnetic resonance imaging three axial cutting with zero treatment voxel rendering |
| 基金项目:南通市科技计划项目(MS12021089)。 |
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| 中文摘要: |
| 目的 观察三维二值掩模零化法联合体素绘制法对于切割及渲染CT与MRI体积数据的作用。方法 利用Matlab软件将DICOM形式头颈部CT、腹部平扫CT、正常头部MR T1WI及脑胶质瘤T1WI转化为体积数据,以半自动或手动方法获得相应掩模图像;基于原始掩模以零化法在x、y、z轴方向对体积数据进行正向与反向切割,结合三维体素绘制法对切割后的模型进行渲染。结果 所获目标结构原始掩模可在体素绘制后突出显示CT及MRI数据中的相应解剖结构。基于体素绘制法实现了以三维二值掩模零化法与原体数据点积后切割模型,结合手动输入不同阈值进行切割可显示脑胶质瘤及其毗邻结构。结论 三维二值掩模零化法联合体素绘制法可结合不同层面CT与MRI体积数据显示其内部结构。 |
| 英文摘要: |
| Objective To observe the role of 3D binary mask zeroing combined with voxel rendering for cutting and rendering CT and MRI volume data. Methods Matlab software was used to convert DICOM data of head and neck CT, abdominal plain CT, normal head MR T1WI and brain glioma T1WI into volume data, and the corresponding mask images were obtained semi-automatically or manually.Zeroing method was used for forward cutting and reverse cutting volume data based on the original mask at the x, y, and z axes, then combined with voxel rendering method to render the cut model. Results Good original mask of the target structures were obtained with semi-automatic threshold based on CT and MRI data, which could highlight the corresponding anatomical structures after voxel rendering. Then a cutting model was realized with 3D binary mask zeroing method and dot product of the original data based on voxel rendering method, which could show structures adjacent to glioma combined with different manual thresholds. Conclusion 3D binary mask zeroing combined with voxel rendering could perform arbitrary triaxial cutting of CT and MRI volume data, display internal structures through combining different slices of volume data. |
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