Could both intrinsic and extrinsic iodine be successfully suppressed on virtual non-contrast CT images for detecting thyroid calcification?
| Autor: | Young Hen Lee, Hyung Suk Seo, Arim Park |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Adult
Male Non contrast ct medicine.medical_treatment Thyroid Gland chemistry.chemical_element Iodine 030218 nuclear medicine & medical imaging Radiography Dual-Energy Scanned Projection Young Adult 03 medical and health sciences 0302 clinical medicine Iodinated contrast medicine Humans Radiology Nuclear Medicine and imaging Thyroid cancer Aged Retrospective Studies business.industry Limits of agreement Thyroid Calcinosis Reproducibility of Results Middle Aged medicine.disease Thyroid Diseases Radiation therapy medicine.anatomical_structure chemistry 030220 oncology & carcinogenesis Female Tomography X-Ray Computed Nuclear medicine business Calcification |
| Zdroj: | Japanese Journal of Radiology. 39:580-588 |
| ISSN: | 1867-108X 1867-1071 |
| DOI: | 10.1007/s11604-021-01095-8 |
| Popis: | Although virtual non-contrast (VNC) successfully removes iodinated contrast, uncertainty exists regarding the feasibility of VNC to suppress iodine for detecting thyroid calcification. Therefore, we evaluated whether both intrinsic and extrinsic iodine attenuation were suppressed on VNC images. We enrolled 128 patients (male: female 17:111; age 48.0 ± 10.4 years) who underwent dual-layer dual-energy CT (DL-DECT) examination before their thyroid cancer surgeries. Two additional sets of VNC (VNCu, VNCc) images were retrospectively generated from their true unenhanced (TUE) and true contrast-enhanced (TCE) series. We compared CT attenuation values measured on the VNCu and VNCc images by drawing identical regions of interest encompassing thyroid parenchyma, then subjectively determined the concordance of calcification. Although CT attenuation discrepancies between the VNCu and VNCc were significant (2.0 ± 5.7HU, p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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