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The usefulness of [68 Ga]Ga-DOTA-JR11 PET/CT in patients with meningioma: comparison with MRI.
Wang, Peipei; Liu, Shuai; Li, Xiaojie; Liu, Xing; Li, Shaowu; Wu, Zhen; Cheng, Xin.
Afiliación
  • Wang P; Department of Nuclear Medicine, Beijing , Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.
  • Liu S; Department of Radiation Oncology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
  • Li X; Beijing Neurosurgical Institute, Capital Medical University, Beijing, China.
  • Liu X; Department of Neurosurgery, Fengtai District, Beijing Tiantan Hospital, Capital Medical University, No. 119, the West Southern 4Th Ring Road, Beijing, 100073, China.
  • Li S; Beijing Neurosurgical Institute, Capital Medical University, Beijing, China.
  • Wu Z; Beijing Neurosurgical Institute, Capital Medical University, Beijing, China.
  • Cheng X; Department of Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Eur J Nucl Med Mol Imaging ; 51(1): 218-225, 2023 12.
Article en En | MEDLINE | ID: mdl-37682301
ABSTRACT

PURPOSE:

Clinical studies of PET imaging using SSTR2 agonists have demonstrated high accuracy and correlation with SSTR2 expression in meningiomas. However, the usefulness of the SSTR2 antagonist with [68 Ga]Ga-DOTA-JR11 is uncertain. To evaluate the diagnostic performance of [68 Ga]Ga-DOTA-JR11 PET/CT and to clarify tumor characteristics in patients with suspected meningiomas. MATERIALS AND

METHODS:

Patients with suspected de novo or recurrent meningioma in complex locations or atypical images were enrolled from August 2021 to October 2022 in prospective study. All patients underwent contrast-enhanced MRI (CE-MRI), [68 Ga]Ga-DOTA-JR11 PET/CT, and histopathological evaluation. Tumor uptake of [68 Ga]Ga-DOTA-JR11 was measured by SUVmax and tumor-endocranium ratio (TBR). Diagnostic performance was compared between PET and MRI.

RESULTS:

Of 36 (50.0 ± 13.0 years of age, 20 women) patients, 32 were histopathologically confirmed meningiomas and four with other tumors. [68 Ga]Ga-DOTA-JR11 uptake was significantly higher in meningioma patients than in those with other tumors (SUVmax 13.6 ± 7.7 vs. 5.2 ± 3.0, P < 0.001; TBR 64.2 ± 27.7 vs. 25.0 ± 18.9, P = 0.001). [68 Ga]Ga-DOTA-JR11 PET/CT detected 31 meningiomas, while CE-MRI detected 17 meningiomas of 25 initial diagnosis and 11 recurrent tumors; [68 Ga]Ga-DOTA-JR11 PET had an incremental diagnostic value of 24% (6/25) over MRI in the group of initial diagnosis. There was no statistically significant difference in diagnostic efficacy between PET and MRI (P = 0.45) for all 36 patients. In skull base meningiomas, PET provided a more definitive diagnosis of pituitary involvement (in 12, not in12), compared to MRI (in eight, possible in six, possible not in six, not in four). PET revealed bone involvement in all 14 patients proven by pathology, while MRI identified only 11.

CONCLUSIONS:

[68 Ga]Ga-DOTA-JR11 PET/CT provided high image quality and presented an ideal diagnostic performance in detecting meningioma and evaluating the involvement of the pituitary and bone. The study provides valuable evidence for the use of [68 Ga]Ga-DOTA-JR11 PET/CT as a complementary imaging modality to CE-MRI in the evaluation of meningiomas.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Compuestos Organometálicos / Neoplasias Meníngeas / Meningioma Tipo de estudio: Observational_studies / Prognostic_studies Límite: Adult / Female / Humans Idioma: En Revista: Eur J Nucl Med Mol Imaging Asunto de la revista: MEDICINA NUCLEAR Año: 2023 Tipo del documento: Article País de afiliación: China

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Compuestos Organometálicos / Neoplasias Meníngeas / Meningioma Tipo de estudio: Observational_studies / Prognostic_studies Límite: Adult / Female / Humans Idioma: En Revista: Eur J Nucl Med Mol Imaging Asunto de la revista: MEDICINA NUCLEAR Año: 2023 Tipo del documento: Article País de afiliación: China