Ultrasound backscatter microscopy

Author

Sherar, M.D. ; Foster, F.S.

Author_Institution

Dept. of Med. Biophys., Toronto Univ., Ont., Canada

fYear

1988

fDate

2-5 Oct 1988

Firstpage

959

Abstract

The principle, design considerations, and operation of a C-mode, 100-MHz ultrasound backscatter microscope are described. Applications of the C-mode microscope, as well as of a new real time B-mode UBM, to the imaging of an in vitro tumor model and ocular tissue are presented. Central to these developments has been the construction of PVDF (polyvinylidene fluoride) transducers with sufficient sensitivity to detect the small backscatter signals from biological materials and bandwidth capable of giving an axial resolution of approximately 10 μm. The lateral resolution achieved is 17.5 μm in the C-scanner using an f/1.33 transducer and 36 μm in the B-scanner, which uses an f/2 transducer. Future developments are also discussed

Keywords

acoustic imaging; acoustic microscopy; biomedical ultrasonics; patient diagnosis; 100 MHz; B-mode; C-mode; PVDF; backscatter signals; biological materials; imaging; in vitro tumor model; ocular tissue; transducers; ultrasound backscatter microscope; Backscatter; Bandwidth; Biological materials; Biological system modeling; In vitro; Microscopy; Neoplasms; Signal resolution; Ultrasonic imaging; Ultrasonic transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1988. Proceedings., IEEE 1988

Conference_Location

Chicago, IL

Type

conf

DOI

10.1109/ULTSYM.1988.49519

Filename

49519