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Radiology
Breast Imaging Reporting and Data System
Built from Fundamentals of Diagnostic Radiology
What’s inside
6 sections · 119 slides
Overview
- What this chapter covers
- The BI-RADS atlas
What BI-RADS Is
Why the system exists, what the atlas contains, and how it improves breast imaging
- Why BI-RADS was created
- What the atlas contains
- Sections of the BI-RADS atlas
- How the lexicon guides risk
Mammography Lexicon
Breast composition, masses, calcifications, architectural distortion, asymmetries, and associated features
- Breast composition basics
- Breast composition categories
- Breast density categories
- The four density categories
- What counts as a breast mass
- Mass descriptors on mammography
- Three features of a mass
- Mass shape
- Oval mass shape
- Round mass shape
- Irregular mass shape
- Mass margin: the five choices
- Reading the margin
- Circumscribed mass margin
- Obscured mass margin
- Indistinct mass margin
- Microlobulated mass margin
- Spiculated mass margin
- Spiculated mass versus distortion
- Spiculated mass versus architectural distortion
- Choose the worst margin feature
- Margin with mixed features
- Mass density
- Fat-containing mass
- Cancer engulfing fat
- Low-density mass
- Equal-density mass
- High-density mass
- Fat in a mass: benign or not
- Putting mass features together
- How DCIS makes calcifications
- Why calcifications matter
- Calcification morphology descriptors
- Malignant calcification morphologies
- Amorphous and coarse heterogeneous
- Amorphous calcifications
- Coarse heterogeneous calcifications
- Fine pleomorphic and fine linear
- Fine pleomorphic calcifications
- Fine linear branching calcifications
- Calcification distribution descriptors
- Calcification distribution
- Diffuse, regional, and grouped
- Diffuse calcifications
- Regional calcifications
- Grouped calcifications
- Linear and segmental
- Linear calcifications
- Segmental calcifications
- Typically benign calcifications
- Benign calcifications
- Skin and vascular calcifications
- Skin calcifications
- Vascular calcifications
- Popcorn, rod-like, and round
- Popcorn calcifications
- Large rod-like calcifications
- Round calcifications
- Milk of calcium, rim, and dystrophic
- Milk of calcium
- Rim calcifications
- Dystrophic calcifications
- Architectural distortion basics
- Architectural distortion
- Causes of architectural distortion
- Architectural distortion: benign or not
- Asymmetries
- Asymmetries overview
- Asymmetry and global asymmetry
- Asymmetry on one view
- Global asymmetry
- Focal and developing asymmetry
- Focal asymmetry
- Developing asymmetry
- Associated features
- Associated features
- Associated features of malignancy
Ultrasound Lexicon
Shape, margin, echo pattern, orientation, posterior features, and cystic masses
- Ultrasound lexicon overview
- Mass descriptors on ultrasound
- Ultrasound shape and margin
- Ultrasound mass shape
- Ultrasound mass margin
- Ultrasound echo pattern
- Ultrasound echo pattern
- Orientation and posterior features
- Lesion orientation on ultrasound
- Posterior features on ultrasound
- Cystic masses on ultrasound
- Cystic breast masses on ultrasound
- Cystic breast masses on ultrasound
- Ultrasound associated features
Reporting and Assessment
The structured report, lesion location, and assessment categories 0 through 6
- The structured report
- Location of a lesion
- Pinpointing lesion location
- Assessment categories 0 through 3
- Assessment categories 4 through 6
- The seven assessment categories
- Assessment categories
Follow-Up and Outcome Monitoring
Statistical terms, sensitivity and specificity, positive predictive value, and the medical audit
- Data to collect under MQSA
- Screening versus diagnostic
- Classifying results
- Sensitivity, specificity, and detection
- Positive predictive value
- Three positive predictive values
- ≥2.5
- Where benchmarks come from
- Running a medical audit
- Key takeaways
- Suggested readings
- Suggested readings
- Suggested readings
- Suggested readings
- Brant and Helms' Fundamentals of Diagnostic Radiology