Imaging method is comprising steps of be placed on detection zone for object, bias detector (1-8) is relative to object Mobile imaging system makes radiographic source (1-7) data collection for carrying out circular motion and being scanned around object synchronous with detector (1-8), supplementary data along longitudinal Z axis It is used to obtain complete target image with collected data are rebuild. Imaging method combination detector bias and helical scanning solve the imagings of routine CT used in current image splicing method and generate artifact, reduces the region using detector, can reduce system cost.
