CDs offered by Edward Jones are bank-issued and FDIC-insured up to $250,000 (principal and interest accrued but not yet paid) per depositor, per insured depository institution, for each account ownership category.
My grandfather's pet scan was only scheduled to take 1 hour, but instead it took 4 hours. Dr. Joseph Accurso Dr. Accurso. Not a bad sign: Generally, if a pet/ct scan takes longer than 1 hour, it is for technical or patient motion reasons. The camera might have had a problem, or the patient may have moved and part of the scan repeated, or more of the body (legs) imaged.
A computer program (reconstruction algorithm), like those used in computed tomography, produces an image of the distribution of the tracer in the plane of the detector ring. Most of the isotopes used in PET scanning have a half-life of only 2 to 10 minutes.