Background: Congenital hyperinsulinism (CHI) is a neuroendocrine disease with focal or diffuse abnormalities in pancreas. While drug-resistant diffuse forms require near-total pancreatectomy or prolonged pharmacotherapy, focal CHI may be treated by targeted surgical resection. We evaluated the usefulness of F-DOPA PET/CT to identify the focal pancreatic form.
Subjects And Methods: Nineteen children (11 boys, 8 girls, aged 2-54 months) with clinical signs of neonatal CHI and positive genetic examinations were enrolled in the study. After i.v. administration of F-DOPA, early PET and late PET/CT acquisition covering one-bed length over thoraco-abdominal region were performed. Both acquisitions were done in dynamic mode to allow exclusion of frames with motion artefacts. Standardized uptake values were adjusted to bodyweight (SUV). The finding was considered as focal when the ratio of SUV between the suspicious region and the rest of pancreas was greater than 1.2.
Results: Focal forms were recorded in 10/19 children and 4 of them underwent surgical resection with complete recovery. Focal uptake was significantly higher than the uptake in the normal pancreatic tissue (p=0.0059). Focal and diffuse forms of CHI did not differ significantly in normal pancreatic tissue uptake. We found no advantage in the measurement of SUV ratio compared to SUV ratio (p=0.50).
Conclusion: F-DOPA PET/CT is a useful tool for the localization of focal CHI and planning of surgical treatment.
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http://dx.doi.org/10.1016/j.remn.2020.02.005 | DOI Listing |
J Endocrinol Invest
December 2024
Nuclear Medicine and Molecular Imaging, ICANS, Strasbourg University Hospitals, Strasbourg University, Strasbourg, France.
Purpose: To investigate the influence of germline succinate dehydrogenase (SDHx) pathogenic variants on 6-[F]-fluoro-3,4-dihydroxyphenylalanine (F-DOPA) Positron Emission Tomography (PET) radiomic signature of head and neck paragangliomas (HNPGLs).
Methods: Forty-seven patients (20 SDH pathogenic variants carriers) harboring 55 HNPGLs were retrospectively included. HNPGLs were delineated using Nestle adaptive threshold.
J Clin Med
October 2024
Department of Informatics, Bioengineering, Robotics and System Engineering (DIBRIS), University of Genoa, 16145 Genoa, Italy.
Q J Nucl Med Mol Imaging
September 2024
Nuclear Medicine Unit, Department of Medical Sciences, AOU Città della Salute e della Scienza, Turin, Italy -
Eur J Nucl Med Mol Imaging
December 2024
Vita-Salute San Raffaele University, Via Olgettina 58, Milan, 20132, Italy.
Acta Chir Belg
December 2024
Department of General and Endocrine Surgery, Onze-Lieve-Vrouw (OLV) Hospital Aalst, Aalst, Belgium.
Objective: Thyroid-originated paragangliomas are very uncommon, and there is a lack of established guidelines regarding their management.
Methods: A case study was presented, and a review of the literature was conducted.
Results: Diagnosing a paraganglioma requires multiple diagnostic methods, including a 24-h measurement of metanephrines or catecholamines, anatomical imaging using magnetic resonance or computed tomography (CT) scans, and functional imaging using metaiodobenzylguanidine or F-DOPA PET/CT scans.
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