期刊
ULTRASOUND IN MEDICINE AND BIOLOGY
卷 42, 期 5, 页码 1230-1238出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ultrasmedbio.2015.12.013
关键词
Elastography; Imaging; Inhomogeneous phantoms; Permeability; Polyacrylamide gels; Poroelastography; Ultrasound
Poroelastography is an elastographic technique used to image the temporal mechanical behavior of tissues. One of the major challenges in determining experimental potentials and limitations of this technique has been the lack of complex and realistic controlled phantoms that could be used to corroborate the limited number of theoretical and simulation studies available in the literature as well as to predict its performance in complex experimental situations and in a variety of conditions. In the study described here, we propose and analyze a new class of phantom materials for temporal elastography imaging. The results indicate that, by using polyacrylamide, we can generate inhomogeneous elastographic phantoms with controlled fluid content and fluid flow properties, while maintaining mechanical and ultrasonic properties similar to those of soft tissues. (C) 2016 World Federation for Ultrasound in Medicine & Biology.
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