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For semiquantitative analyses of tissue perfusion using contrast-enhanced ultrasound the acquisition and processing of time intensity curves (TIC) is required. These TICs can be computed for each pixel of an image plane, yielding parametric images of classification numbers like "blood volume" and "flow rate." The expenditure of time for data acquisition and analysis typically limits...
For the detection of breast cancer, ultrasound is conventionally used in addition to mammography. However, ultrasound is highly operator-dependent since speckle, depth dependency and other artifacts (e.g. shadowing) affect image quality. Full Angle Spatial Compounding (FASC) may overcome those limitations by superimposing ultrasound data acquired in one cross-sectional plane from aspect angles all...
For sequential perfusion measurements in several image planes with replenishment method, we propose a fast technique by consecutively scanning respective image planes twice: Firstly using only a short period of imaging pulses after micro- bubble destruction to assess slope and secondly using few imaging pulses to assess final value. Both scans are combined to extract perfusion rate and blood volume.
In this paper results from a clinical study on differentiating between various types of parotid gland tumors using computerized tissue characterization (Sonohistology) are presented. Complex baseband ultrasound data have been acquired during the common examinations of patients who were scheduled to have parotid surgery shortly after the acquisition. Data of 123 benign and malignant parotid-gland alterations...
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