Automated Breast Ultrasound with Remote Reading Shows Promise for Early Cancer Detection in Low-Resource Settings
Automated breast ultrasound (ABUS) with remote reading might be a game-changer for breast cancer screening in areas with limited resources. A recent study published in the *American Journal of Roentgenology* suggests this innovative approach could significantly improve access to early detection and potentially save lives.
Bridging the Access Gap
Chinese women face unique challenges accessing population-based mammographic screening programs. Recognizing this gap, researchers led by Hongping Song, MD, PhD, from Xijing Hospital, Fourth Military Medical University in China, explored the potential of ABUS coupled with teleradiology to address this issue.
The Study: Evaluating ABUS in a Community Setting
The study involved 5,978 asymptomatic women aged 35 to 69 years. Screenings were conducted at 46 community health centers across 18 Chinese provinces in 2021. Each woman underwent ABUS as the sole breast cancer screening method, with images captured by a technologist at the local health center.
These 3D volumetric data were then transmitted to a central remote reading center via cloud-based software. Two breast radiologists independently reviewed the images using the BI-RADS (Breast Imaging Reporting and Data System) classification system. A third radiologist resolved any discrepancies.
Striking Results: ABUS Detects Cancer, Reveals Potential for Improvement
ABUS successfully detected 24 cancers and identified two interval cancers (cancers that develop between screenings). The cancer detection rate was four per 1,000 women, with an abnormal interpretation rate of 11.9%. Notably, 95.8% of the detected cancers were invasive, with a median diameter of 10 mm. The majority (73.9%) were node-negative, highlighting the potential for early detection and improved outcomes.
The study reported a sensitivity of 92.3%, a specificity of 88.4%, a biopsy rate of 1.7%, and a positive predictive value (PPV) of biopsy of 24%. These results demonstrate the promising accuracy of ABUS for breast cancer detection.
Revolutionizing Screenings for Women in Remote Areas
The researchers emphasize that these findings suggest ABUS with teleradiology has the potential to significantly improve breast cancer screening access in resource-limited areas and regions without mammography facilities. Integrating this approach into existing radiology workflows could bring high-quality breast ultrasound services to underserved populations, ensuring everyone has access to potentially life-saving screenings.
However, they also stress the importance of patient privacy and data security when implementing teleradiology. Robust measures to ensure data protection, quality assurance, and compliance with healthcare regulations are crucial.
Read the Full Study Here
https://doi.org/10.2214/AJR.24.31830
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