Multicenter prospective study to evaluate the value of the Breast Ultrasound Diagnosis Flowchart proposed by JABTS (Japan Association of Breast and Thyroid Sonology) / JABTS BC-01

Multicenter prospective study to evaluate the value of the Breast Ultrasound Diagnosis Flowchart proposed by JABTS (Japan Association of Breast and Thyroid Sonology) / JABTS BC-01 - JABTS BC-01

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000007603

Enrollment

800

Registered

2012-03-29

Start date

2009-09-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast cancer

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patient with mass lesions assessed by breast ultrasound.

Exclusion criteria

Exclusion criteria: 1.Typical cysts 2. Mass lesions diagnosed before this study and followed thereafter 3. Mass lesions with vacuum-assisted biopsy at other institution 4. Mass lesions >= 5cm diameter

Design outcomes

Primary

Measure	Time frame
Distribution of mass lesions and breast cancers detected proportion by the JABTS breast ultrasound diagnosis flowchart.	—

Secondary

Measure	Time frame
Factors affecting the assessment of breast malignancy in pathological diagnosis Proportion of malignant lesions detected in subsequent follow-up period which are at first diagnosed as non-malignant based on ultrasound images or cytological/pathological examinations.	—

Countries

Japan

Outcome results