ModulePublishedclinician-educationstroke-escalationimaging

Cerebral angiography (DSA) — why it’s done, risks, and what results mean (Advanced)

Advanced course: understand digital subtraction angiography (DSA) when CTA/MRA aren’t enough—what it evaluates (aneurysm, dissection, vasculitis), procedure steps, risks, and aftercare.

Cross-cuttingCaregiver, SurvivorAdvanced24 minGrade 11

Educational only

Educational only — not medical advice.

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If a patient develops new or worsening stroke symptoms, reduced consciousness, seizure, severe headache, airway/swallowing danger, or unstable vital signs, activate emergency response and follow local stroke escalation protocols.

Key takeaways

  • Explain why DSA is ordered after stroke/TIA in selected cases
  • Know procedure steps and what to expect (catheter, contrast)
  • Recognize key risks and aftercare steps
  • Ask informed questions about results and next steps

Why this matters

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Clinical frame

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Core clinical idea

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Assessment and workup

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Clinical reasoning pathway

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Management and team actions

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Common pitfalls

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Patient-safe explanation

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Escalation and safety signals

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Applied case

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Clinical scenario

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Common misconceptions

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Reflect

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Key takeaways

  • Understand why DSA is ordered after stroke/TIA in selected cases
  • Advanced stroke care requires reconciling the clinical syndrome with timing, imaging, medication risk, patient context, and local pathway capacity.
  • A safe plan names escalation thresholds, responsible clinicians, patient-facing instructions, and the next step if results or symptoms change.

Practice check

What you’ll practice

These questions are untimed. After you answer all of them, you’ll see your score and a clear next lesson or reference step.

0 of 4 answered

Question 1

1. A learner is applying this lesson on Cerebral angiography (DSA) — why it’s done, risks, and what results mean. Which approach best reflects advanced clinical reasoning?

Question 2

2. Which actions show safe handling of Cerebral angiography (DSA) — why it’s done, risks, and what results mean? Select all that apply.

Question 3

3. Place the safe clinical sequence for Cerebral angiography (DSA) — why it’s done, risks, and what results mean in order.

Question 4

4. For Cerebral angiography (DSA) — why it’s done, risks, and what results mean, a normal or non-specific early test result is enough to stop reassessment when the clinical syndrome still suggests risk.

References

  1. Tier 2RadiologyInfo.org2025
    CT Angiography of the Head
  2. Tier 2RadiologyInfo.org2025
    Magnetic Resonance Imaging (MRI) - Head
  3. Tier 2RadiologyInfo.org2025
    Cerebral Angiography