The PET Facilities Core will co-ordinate those aspects of the initial acquisition, reconstruction and archiving of the PET, clinical and CT data that are shared among the four projects. Dr. Powers will the Director of this Core. All PET studies will be done on the Siemens 961 ECAT EXACT HR 47 PET scanner located in the Neurocritical Care PET Research Facility in the Neurology Neurosurgery Intensive Care Unit. This facility is dedicated to scientific research with studies of a cute brain injury given top priority. it is outfitted with al the life support equipment available elsewhere in the NNICU. Currently, all oxygen-15 radiopharmaceuticals necessary for performance of the PET measurements are prepared in the Washington University Medical Center Cyclotron Facility staffed by trained operators from 0700-1700, Monday through Friday. In order to successfully recruit patients with acute traumatic brain injury for Projects 1 and 2, it will be necessary to expand working hours of the Neurocritical Care PET Research Facility outside the current working hours. In year 1, we will construct a delivery system from a Tandem Cascade Accelerlator currently operating in the Rast Building Imaging Center two blocks away. This system will provide the flexibility to study patients during off-hours without the need for a cyclotron operator. Each of the four projects involves acquisition and recording of clinical and diagnostic laboratory information on patients with traumatic brain injury and intracerebral hemorrhage. In our preliminary studies we have used data sheets filled out by hand for this purpose. During year 1, we will continue to use our paper data forms to collect data. This will allow us to gain experience with the data collection and modify the forms accordingly to improve accuracy and efficiency. These revised and modified forms will serve as the basis for modifications to an existing computerized database system to be carried out in year 2. Modification and implementation of this clinical database to serve th needs of this program project should provide improvement in the efficiency, standardization and integrity of data collection and retrieval.

Project Start
1997-09-01
Project End
1998-05-31
Budget Start
1996-10-01
Budget End
1997-09-30
Support Year
1
Fiscal Year
1997
Total Cost
Indirect Cost
Name
Washington University
Department
Type
DUNS #
062761671
City
Saint Louis
State
MO
Country
United States
Zip Code
63130
Dhar, Rajat; Zazulia, Allyson R; Derdeyn, Colin P et al. (2017) RBC Transfusion Improves Cerebral Oxygen Delivery in Subarachnoid Hemorrhage. Crit Care Med 45:653-659
Lee, J J; Powers, W J; Faulkner, C B et al. (2013) The Kety-Schmidt technique for quantitative perfusion and oxygen metabolism measurements in the MR imaging environment. AJNR Am J Neuroradiol 34:E100-2
Diringer, Michael N; Scalfani, Michael T; Zazulia, Allyson R et al. (2012) Effect of mannitol on cerebral blood volume in patients with head injury. Neurosurgery 70:1215-8; discussion 1219
Scalfani, Michael T; Dhar, Rajat; Zazulia, Allyson R et al. (2012) Effect of osmotic agents on regional cerebral blood flow in traumatic brain injury. J Crit Care 27:526.e7-12
Powers, William J; Haas, Richard H; Le, Thuy et al. (2011) Platelet mitochondrial complex I and I+III activities do not correlate with cerebral mitochondrial oxidative metabolism. J Cereb Blood Flow Metab 31:e1-5
Powers, William J; Videen, Tom O; Markham, Joanne et al. (2011) Metabolic control of resting hemispheric cerebral blood flow is oxidative, not glycolytic. J Cereb Blood Flow Metab 31:1223-8
Zazulia, Allyson R; Videen, Tom O; Diringer, Michael N et al. (2011) Poor correlation between perihematomal MRI hyperintensity and brain swelling after intracerebral hemorrhage. Neurocrit Care 15:436-41
Powers, William J; Zazulia, Allyson R (2010) PET in Cerebrovascular Disease. PET Clin 5:83106
Powers, William J (2010) Intracerebral hemorrhage and head trauma: common effects and common mechanisms of injury. Stroke 41:S107-10
Sampson, Tomoko R; Dhar, Rajat; Diringer, Michael N (2010) Factors associated with the development of anemia after subarachnoid hemorrhage. Neurocrit Care 12:4-9

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