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Technical Innovation |
1 Department of Medical Imaging, Toronto General Hospital, University of
Toronto, Toronto, Ontario, Canada.
2 Present address: Diagnostic Imaging, Foothills Medical Centre, 1403 29 St. NW,
Calgary, Alberta T2R 1M5, Canada.
3 Present address: Department of Medicine, Hyogo University, Hyogo, Japan.
4 Toshiba Medical Systems, Tokyo, Japan.
5 Departments of Medical Biophysics and Medical Imaging, University of Toronto,
and Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario,
Canada.
OBJECTIVE. We sought to perform a preliminary evaluation of temporal maximum intensity projection (MIP) of focal hepatic masses in selected patients. The technique processes real-time contrast-enhanced sonography images by integrating the path of moving bubbles to depict vascular morphology. Following a high-intensity ultrasound pulse that disrupts bubbles within the scan plane, MIP images the trajectories of fresh bubbles replenishing the plane and revealing their course.
CONCLUSION. Vascular morphology is depicted at a level or detail not seen before with sonography. High-frame-rate sequences of less than one second uniquely show arterial structure in liver lesions.
Keywords: contrast agents liver tumors maximum intensity projection microflow imaging sonography
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S. R. Wilson, L. D. Greenbaum, and B. B. Goldberg Contrast-Enhanced Ultrasound: What Is the Evidence and What Are the Obstacles? Am. J. Roentgenol., July 1, 2009; 193(1): 55 - 60. [Abstract] [Full Text] [PDF] |
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