Structured Reporting — RADS
The ACR Reporting and Data Systems standardize how findings are categorized and managed — reducing variability and making reports actionable. Pick a system to see its categories and guideline-based management, and use the interactive ACR TI-RADS points calculator.
BI-RADS
Breast · Mammography / US / MRI
Breast Imaging Reporting and Data System — standardizes breast imaging assessment and management.
Lung-RADS
Lung · Low-dose CT (screening)
Standardizes lung cancer screening LDCT reporting and follow-up.
LI-RADS
Liver · CT / MRI (HCC risk)
Liver Imaging Reporting and Data System for patients at risk of hepatocellular carcinoma.
ACR TI-RADS
InteractiveThyroid · Ultrasound
Thyroid Imaging Reporting and Data System — points-based risk stratification of thyroid nodules with size-based FNA thresholds.
PI-RADS
Prostate · Multiparametric MRI
Prostate Imaging Reporting and Data System — likelihood of clinically significant prostate cancer.
O-RADS
Ovary / Adnexa · Ultrasound / MRI
Ovarian-Adnexal Reporting and Data System — risk stratification of adnexal lesions.
C-RADS
Colon · CT Colonography
CT Colonography Reporting and Data System — colonic (C) and extracolonic (E) findings.
Category thresholds are summarized for decision support; always confirm against the current ACR source documents and apply clinical judgment.