<unk>  is the use of medical ultrasonography to perform imaging of the breast. It can be considered either a diagnostic or a screening procedure. It may be used either with or without a mammogram. It may be useful in younger women, where the denser fibrous tissue of the breast may make mammograms more difficult to interpret. Automated whole-breast<unk>  (AWBU) is an<unk>  investigation of the breast that is largely independent of the operator skill and that allows the reconstruction of volumetric images of the breast. Using high-frequency<unk> , a diagnostic evaluation of the lactiferous ducts by means of<unk>  (duct sonography) can be performed. In this manner, dilated ducts and intraductal masses can be made visible. Another technique for visualizing the system of lactiferous ducts is galactography, which allows a wider area of the lactiferous duct system to be visualized. A type of<unk>  examination to measure tissue stiffness, which is used to detect tumours, is elastography.<unk>  is also used to perform fine-needle aspiration biopsy and<unk> -guided fine-needle aspiration of breast abscesses. Some women prefer<unk>  over mammography because they dislike the pain felt during squeezing or fixing of breast done during mammography for X-ray views.<unk>  is painless procedure.<unk>  is usually done with frequency 7 Megahertz to 14 Megahertz.<unk>  includes<unk>  of axillary tail of breast and sometime it includes<unk>  of axillae also to detect abnormal nodes in axilla because lymphatic drainage of parts of breast occur through axillary lymph nodes.
Breast ultrasound
Breast imaging
Breast MRI
Breast biopsy
Breast self-examination
Breast duct endoscopy
Photon-counting mammography
Xeromammography