Patent ID: 11872078
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A method, comprising:
transmitting ultrasound signals, by a hemispheric transducer array defining a hemispheric imaging region, for reflection by a scattering object in the hemispheric imaging region, each transmitted ultrasound signal having a temporal frequency and a transmission angle from a transmit element of the hemispheric transducer array to the scattering object;
obtaining scattering measurements, by the hemispheric transducer array, by receiving the reflected ultrasound signals, each of the reflected ultrasound signals having a reception angle from a receive element of the hemispheric transducer array to the reflection by the scattering object, each of the obtained scattering measurements having a spatial frequency based on the transmission angle, the reception angle, and the temporal frequency of each transmitted ultrasound signal; and
reconstructing medium variations within the hemispheric imaging region having real and imaginary components, by one or more hardware computer processors, by:
identifying a subset of the obtained scattering measurements with spatial frequencies that are antipodal to the spatial frequencies of other obtained scattering measurements;
applying an inverse Fourier transform to the subset of the obtained scattering measurements to determine real and imaginary components of medium variations that account for the subset of obtained scattering measurements;
modeling a relationship between the real and imaginary components of the reconstructed medium variations that account for the subset of obtained scattering measurements; and
using the modeled relationship between the real and imaginary components of the reconstructed medium variations that account for the subset of obtained scattering measurements to extrapolate unobtained scattering measurements with spatial frequencies that are antipodal to the spatial frequencies of the obtained scattering measurements.