Speaking of a stress study, Mrs. Heinz Kerry said, "males' response is testosterone-related, fight or flight," while estrogen "makes women want to tend and mend".
Current European guidelines recommend stress study to be performed first since rest study can be omitted if stress study is interpreted as normal.
Thus, omitting the rest study if the stress study is normal is a safe procedure.
For the stress study, a constant infusion of NE or SB was initiated for 10 min.
During the stress study, a betamethasone isomer was generated as expected.
There were no cases with inhomogeneous perfusion more pronounced in the rest study than in the stress study.
Current MPS imaging guidelines differ in their opinion whether a rest study is necessary or not when stress study is interpreted as normal.
Not normal stress studies were followed by a rest study with injection of 600-MBq 99mTc-tetrofosmin, within 1 week of the stress study.
Fig. 1 Short axis view of a patient presenting with inhomogeneous perfusion pattern in the stress study (upper and lower right panel).
For the stress study, a standard dose of about 250 MBq99mTc-tetrofosmin was injected at peak stress while about 750 MBq were administered under resting conditions.
This could for example facilitate the determination if a rest study is needed after a stress study, but this needs to be further tested.
