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Micro-masonry for 3D Additive Micromanufacturing
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Additional value of integrated

Arnoldo Piccardo1,2, P Trimboli3, M Rutigliani4

  • 1Department of Nuclear Medicine, Galliera Hospital, Mura delle Cappuccine 14, 16128, Genoa, Italy. arnoldo.piccardo@galliera.it.

European Journal of Nuclear Medicine and Molecular Imaging
|September 17, 2018
PubMed
Summary
This summary is machine-generated.

Integrated 18F-choline PET/4DCeCT effectively detects hyperfunctioning parathyroid glands in primary hyperparathyroidism patients with prior inconclusive imaging. This advanced imaging method shows higher detection rates and sensitivity than standalone PET/CT or 4DCeCT.

Keywords:
18F-Choline4DCeCTElderlyHyperparathyroidismMolecular profile

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Area of Science:

  • Nuclear Medicine
  • Radiology
  • Endocrinology

Background:

  • Primary hyperparathyroidism (PHPT) diagnosis can be challenging in patients with negative or inconclusive initial imaging.
  • Accurate localization of hyperfunctioning parathyroid glands (HPTG) is crucial for successful surgical outcomes.

Purpose of the Study:

  • To evaluate the diagnostic performance of integrated 18F-choline PET/4D contrast-enhanced computed tomography (4DCeCT) for HPTG localization in PHPT patients.
  • To compare the detection rate and sensitivity of integrated 18F-choline PET/4DCeCT against 18F-choline PET/CT and 4DCeCT alone.
  • To analyze the relationship between choline metabolism and HPTG characteristics.

Main Methods:

  • Prospective enrollment of 44 PHPT patients with negative or inconclusive first-line imaging.
  • Simultaneous performance of 18F-choline PET/CT and 4DCeCT, followed by image coregistration for integrated analysis.
  • Histopathology, laboratory results, and multidisciplinary follow-up served as the reference standard.

Main Results:

  • Integrated 18F-choline PET/4DCeCT achieved a 72.7% detection rate and 100% sensitivity in surgically treated patients.
  • This integrated approach significantly outperformed standalone 18F-choline PET/CT (56.8% detection, 80% sensitivity) and 4DCeCT (54.5% detection, 74% sensitivity).
  • A significant correlation was observed between SUVmax and serum calcium levels, as well as between SUVratio and Ki67 expression.

Conclusions:

  • Integrated 18F-choline PET/4DCeCT is a valuable tool for localizing HPTG in PHPT patients with challenging initial imaging.
  • Choline metabolism, as assessed by PET, correlates with both biochemical (calcium levels) and molecular (Ki67 expression) parameters of HPTG.