Thermoacoustic CT of the breast: Pilot study observations

被引:26
作者
Kruger, RA [1 ]
Kiser, WL [1 ]
机构
[1] OptoSon Inc, Indianapolis, IN 46268 USA
来源
BIOMEDICAL OPTOACOUSTICS II | 2001年 / 4256卷
关键词
Thermoacoustic; photoacoustic; computed Tomography; ultrasound; mammography;
D O I
10.1117/12.429292
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
In order to assess the potential clinical utility of using thermoacoustic computed tomography (TCT) to image the breast, we conducted a retrospective pilot study of 78 patients. We recruited patients in three age groups (< 40, 40 - 50, > 50 years). The study population was further segregated into "normal" and "suspicious" based on the results of previous x-ray mammography and ultrasound, image quality was evaluated qualitatively by consensus of two trained mammographers using a 4-point scale. The appearance of normal anatomy, cysts, benign disease and cancer was noted. Patients were also asked to rate the "comfort" of the TCT exam and to indicate a personal preference for x-ray mammography or TCT. Analysis of the data indicated that TCT image quality was dependent upon both patient age and breast "density," improving with both increasing breast density and decreasing patient age. Fibrocystic disease was well seen, cysts appearing as areas of low RF absorption. Fibroadenomas did not demonstrate contrast enhancement with the exception of one patient with associated atypical hyperplasia. Cancer displayed higher RF absorption than surrounding tissues in 4/7 patients in whom cancer was confirmed, including one patient with a 7-mm ductal carcinoma in situ (DCIS).
引用
收藏
页码:1 / 5
页数:5
相关论文
共 4 条
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Kruger, RA ;
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