Ruth L O'Gorman1, Philipp Buehler2, Carola Sabandal2, Ianina Scheer3, Malek Makki1, Markus Weiss2, Christian Kellenberger3, and Achim Schmitz2
1Center for MR Research, University Children's Hospital, Zurich, Switzerland, 2Anaesthesia, University Children's Hospital, Zurich, Switzerland, 3Radiology, University Children's Hospital, Zurich, Switzerland
Anaesthetics such as those used for sedation in pediatric MRI affect
cerebral blood flow and hemodynamics to varying degrees. This study examines
differences in cerebral perfusion in children undergoing elective MRI under
sedation with propofol vs. a combination of propofol and ketamine. Children
induced for sedation with ketamine demonstrated on average 14% higher whole
brain perfusion values than those induced for sedation with propofol,
confirming that ketamine and propofol exert a differential effect on brain
activity and hemodynamics.