摘要
目的 利用医学图像融合技术为临床提供新的诊断信息。方法 选取 30例 (男 18例、女 12例 )颅脑病变患者为研究对象 ,其中 2 0例在 1～ 2周内分别进行了CT和MR检查 ,10例在CT确诊后 ,行MR复查 ;将此图像数据运用Legendre矩找出图像的质心和主轴 ,进而完成图像的平移、缩放和旋转 ,以实现CT和MR图像的融合。结果 在 30例CT和MR图像融合中 ,使二者图像信息相互补充的有 2 8例 ,较单纯地观察CT或MR图像能明确判断病变发展趋势的有 19例 ,手术证实的 4例 ,但有 2例图像融合后无明显的优越性。结论 不同来源的多模态图像进行融合 ,可为临床医师明确诊断、设计手术、放疗方案提供有利信息。在融合算法上 ,利用Legendre矩完成运算不失为一种比较直接、快速。
Objective To provide new diagnose informations for clinician by using image fusion. Methods 30 cases with brain lesion (men 18,women were studied 12). Twenty cases were examined by CT or MR in 1_2 weeks, the others were checked by MR, after being diagnosed with CT. These image data were input into computer the center and main axis of image were located by Legendre moment then the CT and MR images were registered by translation, scaling and rotation. Results Of 30 image fusions, supplementary informations were provided to each other in 28 cases,prediction of disease progress in 19 cases. There were 4 cases confirmed at surgery. But in 2 cases no obvious advantage was obtained by image fusion.Conclusion CT and MR image fusion provides useful information for definitive diagnosis, planning of surgery and radiotherapy. To fuse the images of CT and MR, the Legendre moment approach is direct, simple and fast.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
2001年第8期604-608,共5页
Chinese Journal of Radiology
关键词
计算机辅助图像处理
自动数据处理
CT
NMR
成像
Processing,computer assisted
Automatic data processing
Tomography, X ray computed
Magnetic resonance imaging
