Journal
INTERFACE FOCUS
Volume 1, Issue 4, Pages 665-672Publisher
ROYAL SOC
DOI: 10.1098/rsfs.2011.0018
Keywords
Doppler tomography; ultrasonic imaging; medical imaging; coherent processing; incoherent processing
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Funding
- UK Engineering and Physical Sciences Research Council [GR/M07861]
- National Institute for Health Research (NIHR) [II-FS-0109-11071]
- National Institutes of Health Research (NIHR) [II-FS-0109-11071] Funding Source: National Institutes of Health Research (NIHR)
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In continuous wave ultrasonic Doppler tomography (DT), the ultrasonic beam moves relative to the scanned object to acquire Doppler-shifted frequency spectra which correspond to cross-range projections of the scattering and reflecting structures within the object. The relative motion can be circular or linear. These data are then backprojected to reconstruct the two-dimensional image of the object cross section. By using coherent processing, the spatial resolution of ultrasonic DT is close to an order of magnitude better than that of traditional pulse-echo imaging at the same ultrasound frequency.
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