SYSTEM OF SPIRAL CT AND RECONSTRUCTION METHODS Russian patent published in 2016 - IPC G01N23/04 

FIELD: physics.

SUBSTANCE: invention can be used for helical computed tomography. Summary of invention consists in that calculated minimum number of rows of detectors, required for coating Tam window in accordance with a pitch of helical CT system in geometry conical beam and inter row interval of multiple rows of detectors; compensated lost projection data by means of weighing additional projection data if the number of rows of detectors system spiral CT in geometry conical beam is less than minimum number of rows of detectors; resort data conical beam in parallel conical beams; performing weighing cosine angle of cone at resorted data parallel cones and then one-dimensional filtration based on data in direction of rows of virtual detectors formed when resorting projection data into data parallel beams; and inverse projection in geometry parallel conical beams without weighing over filtered data for producing reduced images.

EFFECT: high throughput for luggage while maintaining quality of reconstructed images.

5 cl, 10 dwg