Method for reducing artifacts in ultrasound backscatter tomography
First Claim
Patent Images
1. A method for producing an image, the steps comprising:
- acquiring a plurality of sets of raw profile data using an ultrasound reflection mode tomographic scan;
reconstructing a raw image using the acquired raw profile data sets;
locating an identification point in the reconstructed draw image;
calculating a corrective sinusoid which indicates a correct location of a signal produced by the identifiable point in each set of acquired profile data;
correcting each set of acquired profile data in the raw data set by shifting the set of acquired profile data in time by an amount necessary to place the actual signal produced by the identifiable point at the location indicated by the corrective sinusoid; and
reconstructing an image using the corrected set of profile data.
1 Assignment
0 Petitions
Accused Products
Abstract
Sets of raw profile data are acquired from a subject using an ultrasound reflective mode tomographic scan. This raw data is corrected for errors due to inhomogeneities in the speed of sound and an image is reconstructed from the corrected data set. The corrections are made by shifting each set of raw profile data such that a prominent signal therein aligns with a corrective sinusoid which indicates the ideal location of the prominent signal in each set of profile data.
-
Citations
6 Claims
-
1. A method for producing an image, the steps comprising:
-
acquiring a plurality of sets of raw profile data using an ultrasound reflection mode tomographic scan; reconstructing a raw image using the acquired raw profile data sets; locating an identification point in the reconstructed draw image; calculating a corrective sinusoid which indicates a correct location of a signal produced by the identifiable point in each set of acquired profile data; correcting each set of acquired profile data in the raw data set by shifting the set of acquired profile data in time by an amount necessary to place the actual signal produced by the identifiable point at the location indicated by the corrective sinusoid; and reconstructing an image using the corrected set of profile data. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification