What are the key parameters for an 11C-Sodium Acetate procedure in terms of fasting and scanning dose?

The choice indicating 6 hours fasting and a dose of 20 mCi is significant because proper fasting is essential in ensuring that the metabolic status of the patient is optimal for the imaging procedure. In the case of 11C-Sodium Acetate, fasting for 6 hours before the PET scan allows for better differentiation of metabolic activity, as it reduces variability caused by recent food intake and potential interference by circulating glucose and other nutrients.

The radiopharmaceutical dose of 20 mCi is also critical in achieving clear and accurate imaging. This dosage provides an adequate signal for imaging while remaining within safety guidelines to limit radiation exposure to the patient.

In general, the balance between fasting duration and injected dose is designed to maximize the effectiveness of the imaging while prioritizing patient safety and comfort. Therefore, adherence to these parameters enhances the diagnostic efficacy of the PET scan with 11C-Sodium Acetate.