心血管造影图像的分割与诊断

针对心血管造影图像,提出了一种新的血管分割方法,并实现了血管狭窄位置的自动诊断。血管分割中提出了基于Hessian矩阵多尺度增强的新血管函数,在增强的特征图上采用了种子点的自动化选取和双阶段区域增长的分割方法提取了血管轮廓。在此基础上进行了血管骨架提取,骨架点搜索和直径测量,实现了全自动的狭窄诊断。实验结果表明,新的血管分割方法能够提取出较精准的主分支轮廓,对细小血管也有良好的增强和分割效果,血管狭窄的自动诊断,计算速度快,诊断结果较准确,能够对医生的最终判断提供辅助参考和量化依据。

Segmentation and Diagnosis of Angiocardiography Image

A new method of vessel segmentation and automatic diagnosis in angiocardiography image processing was proposed. During vessel segmentation, a new vessel function based on Hessian matrix was put forward. Then the vessel contour was extracted by the dual-stage region growing with automatic selection of seed point. Next, the automatic diagnosis was realized by vessel skeleton extraction, skeleton point search and diameter measurement. The experimental results indicate that the new method of vessel segmentation can extract the main branch contour accurately and have a good effect on the enhancement and segmentation of small vessels. The automatic diagnosis of vascular stenosis is fast, and with a relatively accurate diagnosis result, it can provide a good reference and quantitative basis for the final judgment of the doctor.