Breast Density Facts



Automated Whole-Breast Ultrasound (ABUS)

Handheld Whole-Breast Ultrasound (HHUS)

Understanding the Difference: Handheld vs. Automated

Both HHUS and ABUS are clinically appropriate supplemental screening options, but they differ in how images are acquired and incorporated into practice workflows.

Category

Clinical Use Case

Flexible, diagnostic or screening use; well-suited for lower volume programs

Designed for high-volume, standardized screening programs

Operator Dependency

High, dependent on sonographer expertise

Lower, standardized acquisition

Who Performs Exam

Registered sonographer with breast imaging experience required

Can be performed by trained mammography technologist or trained Breast Imaging Support Specialist

Patient Scheduling Flexibility

Part Time deployment (e.g., 1 day/week) based on sonographer availability

Integrated into daily schedule; may utilize shared mammography staffing

Impact on Patient Throughput

No impact to mammography capacity as a screening exam; may support both screening and diagnostic ultrasound workflows (diagnostic exams may impact screening scheduling)

May impact mammography capacity when ABUS is performed by shared technologist resources, requiring dedicated scheduling blocks

Equipment

May be performed with practice’s existing ultrasound equipment (or OWH can procure); may evaluate the addition of diagnostic breast imaging services to maximize staff and equipment utilization

OWH must procure the ABUS machine

Space Required

If leveraging practice equipment, can usually be done in existing room

Separate room required. Should not be added to screening mammography room

Category

Clinical Use Case

Flexible, diagnostic or screening use; well-suited for lower volume programs

Operator Dependency

High, dependent on sonographer expertise

Who Performs Exam

Registered sonographer with breast imaging experience required

Patient Scheduling Flexibility

Part Time deployment (e.g., 1 day/week) based on sonographer availability

Impact on Patient Throughput

No impact to mammography capacity as a screening exam; may support both screening and diagnostic ultrasound workflows (diagnostic exams may impact screening scheduling)

Equipment

May be performed with practice’s existing ultrasound equipment (or OWH can procure); may evaluate the addition of diagnostic breast imaging services to maximize staff and equipment utilization

Space Required

If leveraging practice equipment, can usually be done in existing room

Category

Clinical Use Case

Designed for high-volume, standardized screening programs

Operator Dependency

Lower, standardized acquisition

Who Performs Exam

Can be performed by trained mammography technologist or trained Breast Imaging Support Specialist

Patient Scheduling Flexibility

Integrated into daily schedule; may utilize shared mammography staffing

Impact on Patient Throughput

May impact mammography capacity when ABUS is performed by shared technologist resources, requiring dedicated scheduling blocks

Equipment

OWH must procure the ABUS machine

Space Required

Separate room required. Should not be added to screening mammography room

Key Takeaways for Referring Providers

Both modalities are clinically appropriate for supplemental screening in women with dense breast tissue

The primary differentiators are staffing model, operational impact, and scalability

Handheld ultrasound is often more practical for lower-volume practices and can support both screening and diagnostic workflows

ABUS becomes more compelling in higher-volume settings where standardization and scale drive efficiency