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Parathyroid Imaging.

Marie Nicod Lalonde1, Ricardo Dias Correia1, Gerasimos P Syktiotis2

  • 1Nuclear Medicine and Molecular Imaging Department, Lausanne University Hospital, Lausanne, Switzerland.

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|March 15, 2023
PubMed
Summary
This summary is machine-generated.

Primary hyperparathyroidism (1° HPT) requires accurate preoperative localization of parathyroid adenomas for successful parathyroidectomy. 18F-FCH PET/CT is the most sensitive imaging method for detecting parathyroid adenomas, especially in multigland disease.

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Area of Science:

  • Endocrinology
  • Nuclear Medicine
  • Radiology

Background:

  • Primary hyperparathyroidism (1° HPT) is a common endocrine disorder often caused by parathyroid adenomas, necessitating parathyroidectomy for symptomatic patients.
  • Accurate preoperative localization of parathyroid adenomas is critical for surgical planning, particularly for minimally invasive procedures.

Purpose of the Study:

  • To review the diagnostic performance of various imaging modalities for parathyroid adenoma localization.
  • To highlight the role of 18F-FCH PET/CT as a highly sensitive imaging technique for parathyroid adenoma detection.

Main Methods:

  • Review of current imaging techniques including cervical ultrasonography (US), 99mTc-sestamibi scintigraphy with SPECT/CT, and 4D-CT.
  • Emphasis on the application and sensitivity of 18F-fluorocholine positron emission tomography/computed tomography (18F-FCH PET/CT).

Main Results:

  • Cervical US is a first-line imaging modality, often followed by 99mTc-sestamibi scintigraphy or 4D-CT.
  • 18F-FCH PET/CT demonstrates the highest sensitivity for parathyroid adenoma detection and is particularly valuable in multigland disease (3° HPT).
  • Combining 18F-FCH PET/CT with 4D-CT can enhance diagnostic performance but increases radiation exposure.

Conclusions:

  • 18F-FCH PET/CT is the most sensitive imaging modality for parathyroid adenoma localization, especially in tertiary hyperparathyroidism (3° HPT).
  • While effective, the cost and availability of 18F-FCH PET/CT may limit its widespread adoption.
  • Continued research and technological advancements are crucial for optimizing parathyroid imaging strategies.