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| The appearance of CT is a result which is combined with traditional X-ray and computer technology.It has been applied in clinical medicine for three decades years, marking the imaging technology into a new phase.With the further development of CT technology, the disadvantage of traditional CT is appeared because it can only provide structural information. Therefore, over the past ten years, the development of fast CT scanning has prompted functional CT as a technology that is diagnosed in the blood kinetics of human tissue. The technology is based on creating physiological model. At present, the physiological model of functional CT imaging is divided into compartmental models and distributed parameter models. Compartmental models include one-compartmental model and two-compartmental model and distributed parameter models include Johnson-Wilson model, ATH model and DCATH model. |
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| Keywords:CT; functional CT; physiological model |
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