In a first-ever study, researchers from Tohoku University have found that ultrasound screening combined with mammography aid in early detection of breast cancer.
Results of a randomized controlled trial involving more than 70,000 women and examining the effectiveness of ultrasonography in breast cancer screening were published in the online edition of the British medical journal The Lancet on Thursday.
The project, called the Japan Strategic Anti-cancer Randomized Trial (J-START), funded by the health ministry, involved 42 medical organizations nationwide studying 72,998 women aged 40 to 49 from 2007 through 2011.