Published in:
01-12-2016 | Commentary
Failed PET Application Attempts in the Past, Can We Avoid Them in the Future?
Authors:
Gang Cheng, Thomas J. Werner, Andrew Newberg, Abass Alavi
Published in:
Molecular Imaging and Biology
|
Issue 6/2016
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Excerpt
The introduction of positron emission tomography (PET) as a major imaging methodology has truly revolutionized the practice of medicine far beyond what has been accomplished with other modalities [
1,
2]. For more than a decade, PET and PET/computed tomography (CT), as a noninvasive imaging modality, has demonstrated a great value in clinical practice, mainly in clinical oncology for tumor characterization, staging, and guiding therapy selection in patients with various kind of malignancies. PET also plays an important role in the diagnosis of cardiovascular diseases and neurological disorders such as Alzheimer’s disease and seizures. By now, it is apparent that structural imaging techniques are quite insensitive for the early detection of most diseases in spite of the superior spatial resolution provided by these modalities. The success of PET/CT, particularly with 2-deoxy-2-[
18F]fluoro-
d-glucose ([
18F]FDG), has led to great interest in the development of new molecular probes for PET imaging to reveal functional changes targeting molecular/cellular levels for optimal visualization of the underlying process. According to the Molecular Imaging and Contrast Agent Database, 42 % of all imaging agents under development are PET-based [
3]. A wide variety of new PET radiopharmaceuticals have been developed or are under development to evaluate various pathological processes such as hypoxia [
4,
5], proliferation [
6‐
8], apoptosis [
9], angiogenesis [
10,
11], and growth factor receptor expression [
12,
13]. …