基于非均匀有理B样条的四维心脏-躯干体模及其在医学影像研究中的应用

The four-dimensional non-uniform rational B-splines-based cardiac-torso phantom and its application in medical imaging research

在医学影像研究中，新的医学影像研究工具模拟方式的作用日益重要。基于非均匀有理B样条的四维心脏．躯干（4DNCAT）体模是在成像处理时，采用影像处理精确模型就能够提供来自受试者不同解剖部位的成像数据。4DNCAT已广泛用于SPECT、PET、CT等医学影像研究，并已用于调强放射治疗四维逆向计划系统。

Simulation skill is playing an increasingly important role in medical imaging research. four-dimensional non-uniform rational B-splines-based cardiac-torso （4D NCAT） phantom is new tool for meoical imaging res earch and when combined with accurate models for the imaging process a wealth of realistic imaging data from subjects of various anatomies. Can be provided 4D NCAT phantoms have bend widely used in medical research such as SPECT, PET, CT and so on. 4D NCAT phantoms have also been used in inverse planning system of intensity modulated radiation therapy.