三维SPECT心脏图像的交互式可视化

[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems Pub Date : 1990-06-03 DOI:10.1109/CBMSYS.1990.109402

Mark F. Smith, R. Jaszczak, C. Floyd, K. Greer, R. Coleman

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引用次数: 0

摘要

用于交互式观察心肌和心脏血池的单光子发射计算机断层扫描(SPECT)图像的各种方法已经发展起来。采用标准临床方案获取和重建心肌灌注和门控血池投影数据。在恒星GS1000图形超级计算机上进行表面渲染之前，使用阈值算法对三维图像进行分割。从任意角度观察感兴趣的区域可以更全面地评估心肌灌注和心脏性能。在恒星和配备图形加速器的Sun 3/280上，通过交互式选择的切片平面实现了三维图像的体素可视化。在观察低振幅特征(如右心室心肌)时，这种表现优于表面渲染。体绘制已经在这两台计算机上实现了，但它还不够快，无法实现实时交互式观看。3-D SPECT图像的交互式可视化说明了这些图像在评估心脏生理和病理方面的潜力。

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Interactive visualization of three-dimensional SPECT cardiac images

Various methods for interactively viewing single photon emission computed tomography (SPECT) images of the myocardium and cardiac blood pool have been developed. Standard clinical protocols are used to acquire and reconstruct myocardial perfusion and gated blood pool projection data. The 3-D images are segmented with a thresholding algorithm prior to surface rendering on a Stellar GS1000 graphics supercomputer. Viewing regions of interest from arbitrary perspectives permits a more comprehensive evaluation of myocardial perfusion and cardiac performance. Voxel visualization along interactively chosen slicing planes through a 3-D image has been implemented on both the Stellar and on a Sun 3/280 equipped with a graphics accelerator. This presentation is superior to surface rendering for viewing low-amplitude features such as the right ventricular myocardium. Volume rendering has been implemented on these two computers, but it is not yet fast enough for real-time interactive viewing. Interactive visualization of 3-D SPECT images illustrates the potential for greater exploitation of these images in evaluating cardiac physiology and pathology.<>

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[1990] Proceedings. Third Annual IEEE Symposium on Computer-Based Medical Systems

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