Dual-layer spectral CT virtual-non-contrast images aid in parathyroid adenoma analysis and radiation dose reduction: confirmation of findings from dual-energy CT

4D-parathyroid CT scans have become a mainstay in the evaluation and pre-surgical planning for parathyroid adenomas. Most protocols typically rely on non-contrast images, prior to the arterial and delayed phases. Previous reports with dual-energy CT imaging have highlighted the utility of virtual no...

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Bibliographic Details
Published in:Clinical imaging 2022-04, Vol.84, p.113-117
Main Authors: Maraia, Danielle, Hemmerdinger, Steven, Chiarolanzio, Patrick, Mehta, Hasit, Ali, Sana, Gomes, William, Schefflein, Javin, High, Maynard, Gulko, Edwin
Format: Article
Language:English
Subjects:
4D-CT parathyroid scan
Adenoma
Computed tomography
CT spectral
Drug dosages
Drug Tapering
Four-Dimensional Computed Tomography - methods
Humans
Hypercalcemia
Image contrast
Localization
Medical imaging
Nuclear medicine
Parathyroid
Parathyroid adenomas
Parathyroid Neoplasms - diagnostic imaging
Parathyroid Neoplasms - surgery
Radiation
Radiation dosage
Scanners
Sensors
Spectra
Thyroid gland
Tumors
Ultrasonic imaging
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Summary:4D-parathyroid CT scans have become a mainstay in the evaluation and pre-surgical planning for parathyroid adenomas. Most protocols typically rely on non-contrast images, prior to the arterial and delayed phases. Previous reports with dual-energy CT imaging have highlighted the utility of virtual non-contrast images to help reduce radiation dose while maintaining diagnostic accuracy. Herein, we report two cases of surgically proven parathyroid adenomas diagnosed with 4D-parathyroid CT scans performed on dual-layer spectral scanners, and in retrospect highlight the utility of virtual non-contrast images. To our knowledge, this report provides the first description of virtual non-contrast images from dual-layer spectral CT scanners that could aid in the diagnosis of parathyroid adenomas, confirming similar findings described with dual-energy CT scanners. •4D-CT parathyroid scans are increasingly utilized to detect parathyroid adenomas.•CT dual-energy VNC images on 4D-CT parathyroid scans reduce radiation dose.•CT spectral VNC images on 4D-CT parathyroid scans may also reduce radiation dose.
ISSN:0899-7071
1873-4499
DOI:10.1016/j.clinimag.2022.01.008