作者: Dietmar Hiller , Helmut Ermert
DOI: 10.1007/978-1-4613-9780-9_51
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摘要: The concept of computerized tomography (CT) is not only applicable to X-rays, but also other kinds rays, for example ultrasound /1-8/ and microwaves /10/. These non-ionizing waves are known be safe medical diagnostic purposes. Ultrasound (USCT) possible in different modes: the transmission-mode acoustic absorption as well velocity can used reconstruct a cross-sectional distribution. Furthermore, parameters which characterize dependence on frequency these quantities displayed. In reflectionmode distribution reflectivity reconstructed using CT-concept /4-6/. Additionally, measurement diffracted signals allows tomographic imaging inhomogeneous media /8/.