Statistical evaluation of fitting models of diffusion tensor imaging in characterizing normal porcine myocardium
文献类型：会议论文
| 作者 | Wei Liu; Chao Zou; Na Zhang; Yin Wu; Yunxu Sun |
| 出版日期 | 2011 |
| 会议名称 | 2011 4th International Conference on Biomedical Engineering and Informatics, BMEI 2011 |
| 会议地点 | Shanghai, China |
| 英文摘要 | It has been long believed that the decay of diffusion-attenuated signal in MRI complied with monoexponential manner. However, a number of researches found that diffusion signal tended to deviate pronouncedly from monoexponential model with increase of b values in some tissues, such as brain, kidney and prostate. The purpose of the current study was by fitting in each diffusion direction separately in diffusion tensor imaging (DTI), to analyze whether a mono- or biexponential or diffusion kurtosis imaging model gives the best fitting model of DTI in describing diffusion characteristics in normal porcine myocardium. Five non-zero b values between 500 and 2000 s/mm2 were selected and their corresponding myocardial diffusion signal used to fit the three diffusion models in each diffusion direction separately. Statistical tests showed that biexponential model fitted better than the diffusion kurtosis imaging model, and monoexponential model gave the worst fitting performance. The results suggest that diffusion tensor imaging of myocardium may be modeled biexponentially to derive accurate characterization of myocardial microstructure. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/3517]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | 2011 |
| 推荐引用方式 GB/T 7714 | Wei Liu,Chao Zou,Na Zhang,et al. Statistical evaluation of fitting models of diffusion tensor imaging in characterizing normal porcine myocardium[C]. 见:2011 4th International Conference on Biomedical Engineering and Informatics, BMEI 2011. Shanghai, China. |
入库方式： OAI收割
来源：深圳先进技术研究院
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