An ultrasound exam may be used to evaluate lesions seen on the mammogram
to find out whether they are solid or filled with fluid (a cyst). This
imaging technique is also used to evaluate lumps that can be felt but
are difficult to see on a mammogram.
During the exam, the sonographer spreads a thin coating of lubricating
jelly over the area to be imaged to improve conduction of the sound waves.
A hand-held device, called a transducer, is placed on the breast and directs
the sound waves through the breast. When the sound waves are reflected
back from the tissues within the breast, the patterns form a two-dimensional
image of the breast on a screen.
Although breast ultrasound is a valuable problem solving tool, it is not
a substitute for mammography. There are some signs of early breast cancer
that can be seen only on a mammogram. Only mammographic screening has
been proven to save lives from breast cancer.
For more information or to schedule an appointment, please call 714-734-6282.
Breast Imaging Center of Excellence
St. Joseph Hospital is designated a Breast Imaging Center of Excellence
by the ACR. This designation assures that St. Joseph Hospital meets standards
for radiation safety and image quality. By awarding facilities the status
of a Breast Imaging Center of Excellence, the ACR recognizes breast imaging
centers that have earned accreditation in mammography, stereotactic breast
biopsy, and breast ultrasound (including ultrasound-guided breast biopsy).