Are there any guarantees with the warranty period for normal stress SPECT myocardial perfusion imaging?

They also determined that age, gender, diabetes, and known coronary artery disease (CAD) influenced the length of time a patient was at low risk. MPI SPECT and Non-obstructive Atherosclerosis Can nuclear cardiology imaging data also document progressive atherosclerosis in the absence of obstructive CAD? Older patients, those with diabetes or hypertension or prior CAD will require closer surveillance than patients without these clinical risks. [Extracted from the article]