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Related Concept Videos

The Parathyroid Glands00:59

The Parathyroid Glands

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The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by...
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Related Experiment Video

Updated: Sep 21, 2025

Author Spotlight: Integrating Ultrasound Imaging with Biochemical Markers for Thyroid Disease Diagnosis
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Relative Perfusion Differences between Parathyroid Adenomas and the Thyroid on Multiphase 4DCT.

Steven P M J Raeymaeckers1, Yannick De Brucker1, Maurizio Tosi2

  • 1Department of Radiology, UZ Brussel, Brussels 1090, Belgium.

International Journal of Biomedical Imaging
|June 1, 2022
PubMed
Summary
This summary is machine-generated.

Multiphase 4DCT imaging enhances parathyroid adenoma detection by assessing blood flow and volume. This technique effectively differentiates parathyroid adenomas from thyroid tissue, aiding diagnosis.

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Area of Science:

  • Radiology
  • Nuclear Medicine
  • Medical Imaging

Background:

  • Parathyroid adenomas are a common cause of hyperparathyroidism.
  • Accurate detection and differentiation from thyroid tissue are crucial for diagnosis and treatment planning.
  • Current imaging techniques may have limitations in differentiating parathyroid adenomas from normal thyroid tissue.

Purpose of the Study:

  • To evaluate the utility of multiphase 4D computed tomography (4DCT) in detecting parathyroid adenomas.
  • To assess perfusion parameters, specifically blood flow (BF) and blood volume (BV), for differentiating parathyroid adenomas from thyroid tissue.
  • To determine the diagnostic accuracy of BF and BV in identifying parathyroid adenomas.

Main Methods:

  • A multiphase 4DCT technique was employed, acquiring up to 16 phases with wide beam axial scanning.
  • Perfusion parameters, including blood flow (BF) and blood volume (BV), were calculated for suspected lesions in 19 patients with histologically proven parathyroid adenomas.
  • Receiver Operating Characteristic (ROC) curve analysis was performed to evaluate the discriminating power of BF and BV.

Main Results:

  • Parathyroid adenomas demonstrated a significant increase in blood flow (BF) by 55% (p < 0.001) and blood volume (BV) by 50% (p < 0.001) compared to normal thyroid tissue.
  • Analysis of ROC curves showed a significantly high area under the curve for both BF and BV.
  • These perfusion parameters proved to be effective in distinguishing parathyroid adenomas from thyroid tissue.

Conclusions:

  • Multiphase 4DCT is a valuable tool for the detection of parathyroid adenomas.
  • Calculated perfusion parameters, BF and BV, serve as reliable discriminators between parathyroid adenomas and thyroid tissue.
  • This technique aids in improving diagnostic accuracy for parathyroid adenoma detection.