Myocardial Metabolism 1. An imaging procedure using F-18 FDG to assess regional myocardial metabolism.   2. Indications a. Evaluation of ischemia vs. fibrosis or scar.   b. Assessment of myocardial viability prior to and/or following pharn1acologic intervention or surgical revascularization. Performed in conjunction with a P.E.T. myocardial perfusion study using N-13 ammonia or a T1-201 myocardial perfusion study performed in Nuclear Medicine.   3. Procedure a. Consultation with Nuclear Medicine/P.E.T. staff is required. b. An l.V. Line will be placed by P.E.T. Center personnel. c. An arterial line will be placed for blood sampling by P.E.T. Center personnel if a quantitative study is requested. d. The patient must be fasting (except for water) a minimum of 4 hours prior to the study. e. The patient should not receive l.V. dextrose solutions for a minin1un1 of 4 hours prior to the study. f. As part of the study, blood glucose will be checked and glucose and/or insulin may be given. g. Length of study is 2-3 hours.   Other Studies Cerebral_Blood_Flow Myocardial_Perfusion PET_Bone_Survey PET_Tumor_Survey Regional_Cerebral Metabolism

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