Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea.
Korean J Radiol. 2010 Nov-Dec;11(6):589-93. doi: 10.3348/kjr.2010.11.6.589. Epub 2010 Oct 29.
Sonography is an attractive supplement to mammography in breast cancer screening because it is relatively inexpensive, requires no contrast-medium injection, is well tolerated by patients, and is widely available for equipment as compared with MRI. Sonography has been especially valuable for women with mammographically dense breast because it has consistently been able to detect a substantial number of cancers at an early stage. Despite these findings, breast sonography has known limitations as a screening tool; operator-dependence, the shortage of skilled operators, the inability to detect microcalcifications, and substantially higher false-positive rates than mammography. Further study of screening sonography is still ongoing and is expected to help establish the role of screening sonography.
超声检查是乳腺癌筛查中一种有吸引力的乳腺 X 线摄影术的补充手段，因为它相对便宜，不需要造影剂注射，与 MRI 相比，患者的耐受性更好，而且设备广泛可用。与乳腺 X 线摄影术相比，超声检查对乳腺致密的女性尤其有价值，因为它一直能够在早期检测到大量癌症。尽管有这些发现，但乳腺超声检查作为一种筛查工具存在已知的局限性；操作者依赖性、熟练操作者的短缺、无法检测微钙化以及比乳腺 X 线摄影术高得多的假阳性率。对筛查超声的进一步研究仍在进行中，有望有助于确定筛查超声的作用。
