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E1790. A Case-Based Review of the Abnormal HIDA Scan
Authors
  1. Brian Pando; Memorial Health University Medical Center
  2. Ben Goldsmith; Memorial Health University Medical Center
  3. Carl Odom; Memorial Health University Medical Center
  4. Brian Helmly; Memorial Health University Medical Center
Background
Hepatobiliary iminodiacetic acid (HIDA) scintigraphy is one of the most common methods of evaluating the hepatobiliary system. It has great clinical utility and is nearly 4 decades old. There are many pathologies that can be identified on a HIDA scan, all of which should be familiar to the radiologist-in-training.

Educational Goals / Teaching Points
Learners will become familiar with the background and basis for HIDA hepatobiliary scintigraphy, proper preparation and acquisition of HIDA scans, and systematic methodology for interpretation of HIDA scans for multiple commonly encountered clinical scenarios using exemplary cases.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
Learners will become familiar with the HIDA appearance of the following hepatobiliary pathologies: acute cholecystitis, chronic cholecystitis, biliary obstruction (partial and complete), biliary atresia and biliary leak.

Conclusion
It is important for all radiologists to have a systematic approach to interpretation of HIDA scans. Radiologists should be familiar with the diagnoses associated with the spectrum of abnormal HIDA scan findings.