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DOI: 10.1055/s-0042-1751030
Comparison of the Sensitivity of 68Ga-DOTATATE PET/CT with Other Imaging Modalities in Detecting Head and Neck Paraganglioma: Experience from Western India
Abstract
Background This study aimed to compare the sensitivity of 68Ga-DOTATATE positron emission tomography/computed tomography (PET/CT) with other imaging modalities in the detection of head and neck paraganglioma (HNPGL).
Methods The data of consecutive HNPGL patients (n = 34) who had undergone at least 68Ga-DOTATATE PET/CT and anatomical imaging (contrast-enhanced computed tomography/magnetic resonance imaging [CECT/MRI]) were retrospectively reviewed. The diagnosis of HNPGL (the primary tumor) was confirmed either by histopathology (n = 10) or was based on clinical follow-up and correlation of anatomical with functional imaging in whom histopathology was not available (n = 24). The sensitivities of 68Ga DOTATATE PET/CT, 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT), 131I-metaiodobenzylguanidine (131I-MIBG) scintigraphy, and CECT/MRI for primary HNPGL, associated primary pheochromocytoma + sympathetic paraganglioma (PCC + sPGL), and metastatic lesions were analyzed.
Results Thirty-four patients (males: 15) [isolated HNPGL: 26, HNPGL + PCC: 04, HNPGL+ sPGL: 03, HNPGL + PCC + sPGL: 01] harboring 50 primary lesions were included. For total lesions, 68Ga-DOTATATE PET/CT (99.3%) had significantly higher lesion-wise sensitivity than 18F-FDG PET/CT (81.6%, p = 0.0164), 131I-MIBG (15.2%, p ≤0.0001), CECT (46.3%, p ≤ 0.0001) but similar sensitivity as MRI neck (97%, p = 0.79). On head-to-head comparison (21 primary HNPGL and 39 metastatic lesions), 68Ga DOTATATE PET/CT had significantly higher lesion-wise sensitivities for the detection of metastatic (100 vs. 71.9%, p = 0.04) and total lesions (100 vs. 77.2%, p ≤ 0.0001).
Conclusion 68Ga-DOTATATE PET/CT was the most sensitive imaging modality for the detection of HNPGL and related lesions with significantly higher lesion-wise sensitivities than those of 18F-FDG PET/CT, 131I-MIBG, and CECT.
* Dodamani MH and Jaiswal SK contributed equally and retain the first authorship.
Publikationsverlauf
Artikel online veröffentlicht:
16. August 2022
© 2022. World Association of Radiopharmaceutical and Molecular Therapy (WARMTH). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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