When trying to exclude brain hemorrhage, remember that…
““When trying to exclude brain hemorrhage, remember that blood is hyperattenuated (bright) and usually measures 35-45 Housfield units (HU). This has the opposite appearance to infarction, which is typically hypoattenuated (dark) when compared to normal brain parenchyma.””
About This Quote
This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.
In radiology, brain hemorrhage appears bright (hyperattenuated) on CT, opposite to infarction which appears dark (hypoattenuated).
In simple terms: Bright = bleed; dark = stroke.
Identify hemorrhage by brightness.
Themes
Mood
Type
When to use this quote
- clinical practice
- education
Key Concepts
Questions to Reflect On
- How does attenuation help differentiate pathologies?
- What are common CT signs of stroke?