Study of breast pathology using a 2-D color flow system

Author

Oung, H. ; Reid, J.M. ; Geni, V. ; Raghavan, R. ; Soetanto, K. ; Ortega, H. ; Goldberg, B. ; West, F. ; Schmidt, A.W.

Author_Institution

Biomed. Inst., Drexel Univ., Philadelphia, PA, USA

fYear

1991

fDate

8-11 Dec 1991

Firstpage

1269

Abstract

A prototype water-tank-based analog/digital pulsed imaging system was built to study the feasibility of tumor differentiation using color flow Doppler under low-flow and weak scattering conditions. Images of the whole breast instead of one section were obtained. Data from 20 slices per patient were taken. Since attenuation increases with depth, the recorded ultrasound images were characterized by low signal-to-noise (S/N) ratio with increasing tissue depth. Therefore, frequency estimation algorithms based on depth dependent threshold variation were developed to determine the Doppler frequency at low S/N ratios. Preliminary clinical studies using this system were performed and show good correlation with various medical diagnostic modalities used to investigate breast tumors

Keywords

Doppler effect; acoustic imaging; biomedical ultrasonics; haemodynamics; 2D color flow system; Doppler frequency; attenuation; breast pathology; color flow Doppler; depth dependent threshold variation; frequency estimation algorithms; low signal-to-noise ratio; low-flow conditions; medical diagnostic technique; patient; prototype water-tank-based analog/digital pulsed imaging system; tissue depth; tumor differentiation; weak scattering conditions; whole breast images; Attenuation; Biomedical imaging; Breast cancer; Breast neoplasms; Frequency estimation; Instruments; Pathology; Prototypes; Signal to noise ratio; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1991. Proceedings., IEEE 1991

Conference_Location

Orlando, FL

Type

conf

DOI

10.1109/ULTSYM.1991.234319

Filename

234319