Purpose: This study aims to compare the accuracy of proton-density fat fraction (PDFF) measurements with chemical shift magnetic resonance imaging (CSI) for quantifying the fat content of adrenal nodules and for differentiating adenomas from nonadenomas.
Materials And Methods: Oil-saline phantom measurements was performed to compare the correlation between PDFF and CSI in detecting and quantifying fat content. 43 consecutive patients who had known adrenal nodules were imaged on a 3.0-T MR scanner. PDFF was measured, and the signal intensity (SI) index (SII), SI adrenal-to-liver ratio (ALR) and SI adrenal-to-spleen ratio (ASR) of the adrenal nodules were calculated.
Results: In the phantom study, PDFF ranged from 12.6% to 99.1% and the SII was between 0.72 and 1.23. There was good correlation between these two methods (R square=0.972, p<0.0001). The PDFF of adrenal adenoma was significantly increased compared with that of nonadenoma (p<0.001). PDFF was an effective tool for distinguishing adenoma from nonadenoma, with an area under the curve (AUC) of 0.98. In comparing SII, ALR and ASR the AUC was 0.94, 0.95 and 0.93, respectively. No significant difference was noted between these two methods (p>0.05).
Conclusion: PDFF measurements provide an accurate estimation of fat content in discriminating adenomas from nonadenomas compared with CSI, avoiding complicated data calculations and offering a simpler technique using 3T.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ejrad.2016.11.001 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
PDE11A is a phenotype modulator of Primary Bilateral Macronodular Adrenal Hyperplasia: results of a 334 patients' series.
J Clin Endocrinol Metab
January 2025
Institut Cochin, INSERM U1016, CNRS UMR8104, Paris Descartes University, Paris, France.
Purpose: Primary bilateral macronodular adrenal hyperplasia (PBMAH), the most common cause of Cushing's syndrome due to bilateral nodules, is a heterogeneous disease at the clinical, hormonal and morphological levels. ARMC5 inactivating pathogenic variants are causative of PBMAH and rare variants of PDE11A have been associated with PBMAH.
Methods: Leukocyte DNA of 354 PBMAH index cases was sequenced for ARMC5 and PDE11A genes by Next generation sequencing (NGS).
Computed tomography-guided microwave ablation therapy for pediatric adrenal neuroblastoma with lung nodule a case report.
J Cardiothorac Surg
January 2025
Department of Thoracic Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China.
Background: Solid lung lesions are common in clinical practice, and percutaneous thermal ablation has been shown to be an effective treatment for these lesions. While computed tomography (CT)-guided microwave ablation (MWA) therapy is frequently used for adult solid lesions, it is rarely considered for pediatric cases.
Case Presentation: A case of an 8-year-old child with adrenal neuroblastoma and a left upper lung mass.
Case report: A 51-year-old diabetic patient with primary bilateral macronodular adrenal hyperplasia and primary hyperparathyroidism.
Front Endocrinol (Lausanne)
December 2024
Department of Endocrinology, Chengdu Second People's Hospital, Chengdu, China.
A 51-year-old female patient with diabetes mellitus and hypertension, exhibiting poor control of blood sugar and blood pressure, was unexpectedly found to have multiple large adrenal nodules, excessive cortisol secretion, and adrenocorticotropic hormone inhibition. Cortisol levels remained unresponsive to both low-dose and high-dose dexamethasone tests, leading to a diagnosis of primary bilateral macronodular adrenal hyperplasia. Concurrently, elevated blood calcium and parathyroid hormone levels, along with 99mTc-methoxyisobutyl isonitrile (99mTc-MIBI) imaging revealing increased 99mTc-MIBI uptake in the right inferior parathyroid gland, suggest the consideration of primary hyperparathyroidism.
View Article and Find Full Text PDFMetastatic Pheochromocytoma/Paraganglioma Overproducing Multiple Catecholamines.
JCEM Case Rep
January 2025
Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa University, Kanazawa, 920-8641, Ishikawa, Japan.
Pheochromocytoma and paraganglioma (PPGL) are rare chromaffin-cell tumors producing adrenaline and/or noradrenaline, or solely dopamine. A 52-year-old man presenting with hypertension (141/79 mm Hg) and weight loss (10 kg in 6 months) was admitted to our hospital. Computed tomography revealed a massive right adrenal mass (150 mm) with partial necrosis, accompanied by multiple liver nodules.
View Article and Find Full Text PDFGa-pentixafor PET/CT Is a Supplementary Method for Primary Aldosteronism Subtyping Compared with Adrenal Vein Sampling.
Mol Imaging Biol
December 2024
Department of Nuclearuclear Medicine, Peking University First Hospital, Beijing, China.
Purpose: To investigate the diagnostic efficacy of Ga-pentixafor positron emission tomography/computed tomography (PET/CT) in primary aldosteronism (PA) subtyping and lateralization of aldosterone secretion in PA patients.
Procedures: 37 patients who were diagnosed with PA, were prospectively enrolled in the study, and underwent adrenal vein sampling (AVS) after Ga-pentixafor PET/CT was conducted. Lateralization index (LI), defined as aldosterone/cortisol ratio in the dominant side to the contralateral adrenal vein when bilateral adrenal vein catheterization succeeded, and the aldosterone/cortisol ratio in the left adrenal vein to IVC (LAV/IVC) when the catheterization of right adrenal vein failed, were applied to determine lateralization side.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!