METHOD FOR REMOVING NOISE OF PET SIGNAL IN PET-MRI FUSION DEVICE USING MODELING AND PET SYSTEM WITH PET-MRI FUSION DEVICE USING THE METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method for removing a noise of a PET signal in a PET-MRI fusion device without an MRI RF shield that deteriorates an image quality of the PET-MRI fusion device.

SOLUTION: A method comprises a step (a1) of converting a PET analog signal to a digital signal with a fixed sampling frequency, a step (b1) of determining whether or not it is a PET digital signal included in an image constitution through modeling using a sampling point of the PET digital signal or an integrated value of the PET digital signal, and a step (c1) of extracting only the PET digital signal included in the image constitution. A molecular image is thus obtained without deteriorating performance of a PET detector.

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