Use of PET tracers for parathyroid localization: a systematic review and meta-analysis

Wouter P Kluijfhout, Jesse D Pasternak, Frederick Thurston Drake, Toni Beninato, Jessica E Gosnell, Wen T Shen, Quan-Yang Duh, Isabel E Allen, Menno R Vriens, Bart de Keizer, Miguel H Pampaloni, Insoo Suh

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Abstract

PURPOSE: The great spatial and temporal resolution of positron emission tomography might provide the answer for patients with primary hyperparathyroidism (pHPT) and non-localized parathyroid glands. We performed a systematic review of the evidence regarding all investigated tracers.

METHODS: A study was considered eligible when the following criteria were met: (1) adults ≥17 years old with non-familial pHPT, (2) evaluation of at least one PET isotope, and (3) post-surgical and pathological diagnosis as the gold standard. Performance was expressed in sensitivity and PPV.

RESULTS: Twenty-four papers were included subdivided by radiopharmaceutical: 14 studies investigated L-[(11)C]Methionine (11C-MET), one [(11)C]2-hydroxy-N,N,N-trimethylethanamium (11C-CH), six 2-deoxy-2-[(18)F]fluoro-D-glucose (18F-FDG), one 6-[(18)F] fluoro-L-DOPA (18F-DOPA), and three N-[((18)F)Fluoromethyl]-2-hydroxy-N,N-dimethylethanaminium (18F-FCH). The 14 studies investigating MET included a total of 327 patients with 364 lesions. Sensitivity for the detection of a lesion in the correct quadrant had a pooled estimate of 69 % (95 % CI 60-78 %). Heterogeneity was overall high with I(2) of 51 % (p = 0.01) for all 14 studies. Pooled PPV ranged from 91 to 100 % with a pooled estimate of 98 % (95 % CI 96-100 %). Of the other investigated tracers, 18-FCH seems the most promising with high diagnostic performance.

CONCLUSIONS: The results of our meta-analysis show that 11C-MET PET has an overall good sensitivity and PPV and may be considered a reliable second-line imaging modality to enable minimally invasive parathyroidectomy. Our literature review suggests that 18F-FCH PET may produce even greater accuracy and should be further investigated using both low-dose CT and MRI for anatomical correlation.

Original languageEnglish
Pages (from-to)925-935
Number of pages11
JournalLangenbeck's Archives of Surgery
Volume401
Issue number7
DOIs
Publication statusPublished - Nov 2016

Keywords

  • Primary hyperparathyroidism
  • Minimal invasive parathyroidectomy
  • PET/CT
  • 11C-Methionine
  • 18F-Fluorocholine

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