Lesson 3B (Part 4) Flashcards
SLNB
Sentinel lymph node biopsy
Sentinel lymph node biopsy
The removal of the sentinel lymph node to see if it contains cancer
What is sentinel lymph nodes?
Is the firstlymph nodein a chain or cluster of lymph nodes that receives lymph fluid from the area around a tumour
What will most likely spread to sentinel lymph nodes?
Cancer
What is another term for sentinel lymph node biopsy?
Sentinel lymph node dissection
- SLND
What are 4 examples of new technologies?
- Spatial Compound Imaging
- SonoCT - Sonoelastography
- Elastography
- 3D and 4D
Spatial Compound Imaging
Views the target area from multiple lines of sight to form an image that has fewer artifacts
How does spatial compound imaging work?
Several overlapping scans are acquired from different angles then averaged and combined to form a compound image
Elastography
Imaging the strain induced in breast tissue following compression with a small mechanical device or transducer
What is normal breasts composed of?
Glandular tissue
- which is firmer than connective tissue which is firmer than fat
How do pathologies disrupt normal tissue patterns?
With stiff, dense, inelastic tissue
What are poorly seen sonographically?
Benign lesions
How are malignant lesions seen as? (2)
- Larger
2. Hard
What does 3D imaging acquire?
Image data from many different planes, storing the data in memory, then manipulating the data with computer software
4D
3D with real time scanning capability
What are potential benefits of 3D scanning? (6)
- Visualization of infiltrative zone in coronal plane
- Tumour surface imaging
- Analyze data blocks
- Rotate the 3D image
- Estimation of tumour volume
- Monitor tumour size post therapy
Background echotextures (3)
- Homogeneous
- fat - Homogeneous
- fibroglandular - Heterogeneous
Masses shape (3)
- Oval
- Round
- Irregular
Masses orientation (2)
- Parallel
2. Antiparallel
Margin (2)
- Circumscribed
- Not circumscribed
- indistinct
- angular
- microlobulated
- spiculated
Lesion boundary (2)
- Abrupt interface
2. Echogenic halo
Echo pattern (5)
- Anechoic
- Hyperechoic
- Complex
- Hypoechoic
- Isoechoic
Posterior acoustic features (4)
- None
- Enhancement
- Shadowing
- Combined pattern
Surrounding tissue (6)
- Ducts
- Changes in Cooper’s ligaments
- Edema
- Architectural distortion
- Skin thickening
- Skin retraction
Vascularity (3)
- Present or not present
- Adjacent to lesion
- Diffusely increased
Miscellaneous (5)
- Clustered microcysts
- Complicated cysts
- Mass in or on skin
- Foreign body
- Intramammary or axillary lymph nodes
