ARRS 2022 Abstracts

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E1843. Time is Brain: A Review of CT Perfusion and Its Common Pitfalls for the On-Call Resident
Authors
  1. Faizullah Mashriqi; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell Health
  2. Ethan Davoudzadeh; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell Health
  3. Mobeen Farooq; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell Health
  4. Paul Lee; Donald and Barbara Zucker School of Medicine at Hofstra/Northwell Health
Background
CT perfusion imaging (CTP) plays a vital role in the stroke work up. CTP can detect core infarct and salvageable penumbra soon after symptom onset. In many ways, CTP aids in the guidance of clinical management and intervention. Because of its indispensable role in the workup of an acute stroke, it is imperative for the radiology resident to understand CTP along with its pitfalls and intrinsic limitations.

Educational Goals / Teaching Points
This educational exhibit aims to not only discuss the basic definitions, concepts, and interpretation of CTP but to discuss intrinsic limitations and problem-solve common pitfalls.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
A primary quality control check is required to ascertain proper image acquisition and processing. Moreover, understanding the intrinsic limitations and common pitfalls of CTP aids in recognizing false negative and false positive results and properly conveying this information.

Conclusion
Having a solid foundation in the basic principles of CTP and having skillful interpretation of CTP data is paramount in improving patient care and yielding more favorable clinical outcomes in the setting of acute ischemic stroke.