Stroke detection with 3 different PET tracers

oleh: Ayca Dundar, MD, Michael S. Bold, MD, Busranur Agac, MD, Ayse Tuba Kendi, MD, Saul N. Friedman, MD, PhD

Format: Article
Diterbitkan: Elsevier 2019-11-01

Deskripsi

Stroke is a common cause of patient morbidity and mortality, being the fifth leading cause of death in the United States. Positron emission tomography (PET) is a proven tool for oncology patients, and may have utility in patients with stroke. We demonstrate findings of stroke incidentally detected on oncologic PET/CTs using 18F-FDG, 11C-Choline, and 68Ga-DOTATATE radiotracers. Specifically, focal 11C-Choline or 68Ga-DOTATATE uptakes localized in areas of MRI confirmed ischemia, and paradoxically increased 18F-FDG activity was visualized surrounding a region of hemorrhage, in different patients. These cases demonstrate that PET may have utility in evaluating patients with stroke based on flow dynamics, metabolic activity, and receptor expression. Keywords: Stroke, PET, 68Ga-DOTATATE, 11C-Choline, 18F-FDG