A NEAR REAL-TIME VIEWER FOR PET-GUIDED TISSUE INTERVENTIONS

摘要

An apparatus and a computational method are provided for localizing a positron-emitting source during an intervention using positron emission tomography (PET) imaging. The apparatus is designed to accelerate the image acquisition and reconstruction process such that the resulting image presentation can be used to quickly reposition an interventional device in relation to a lesion. By limiting the processing of data in the acquisition to a focal plane which extends through the localization target, and which is oriented to capture and display motion during the intervention, and then by displaying a persistence image which is frequently refreshed, a user can visualize movement of the positron-emitting source for optimizing the position of the interventional device. The positron-emitting source(s) can be radiolabeled tissue, a radiolabeled interventional device, a radiolabeled fiducial, or any combination thereof.