Fixed defects anterior wall, inferior wall, inferolateral wall & apex & diffuse thinning of septum without SPECT evidence of ischemia
Increased uptake at inferolateral wall indicating hibernating, metabolically active myocardium which is still amenable to cardiovascular revasculartization (with stenting or surgical bypass)
In Neurology, PET plays a vital non-invasive role:
(1) Pre-surgical assessment of patients with refractory epilepsy. PET has greatly diminished the need for deep electrode monitoring, with all its attendant morbidity.
(2) PET is the only clear non-invasive way to distinguish between tumor recurrence and radiation necrosis in the brain of post surgical patients.
(3) Provides the earliest positive diagnosis of Alzheimer’s Dementia and in differentiating Alzheimer’s Dementia from other forms of dementia. All present treatments of Alzheimer’s and probably all future ones will require early detection to be effective.
Images of the brain show exquisite anatomic detail with abnormal activity in the right temporal lobe (arrow) in an epileptic patient
The bottom line is that patients are managed differently when PET is used. Fewer diagnostic and fewer surgical procedures need to be done when PET is used in the diagnostic and surgical work up of patients with primary and recurrent carcinoma. Patients are spared the morbidity and mortality associated with diagnostic and surgical procedures that will have little or no benefit to them, and the insurance companies and the healthcare system are saved the cost of these unnecessary exams.
Learn about Positron Emission Mammography (PEM) for evaluation of breast cancer
Links to other PET scan websites: