 [ Symptoms ] how long can herpes stay in your system before an outbreak years  been married for 16 12 years no infidelity but he is not my first is it possible to have contracted the virus that long ago and not have an outbreak until today [ Disease ] i am a radiologist may be an mri misread when performing an mri the constant motion of the heart creates challenges in obtaining clear images best to try synchronizing the imaging with ecg tracing synchronizing the imaging with breathing or having patient perform repeated short breath holds during imaging