Semi-automated segmentation methods of SSTR PET for dosimetry prediction in refractory meningioma patients treated by SSTR-targeted peptide receptor radionuclide therapy

Boursier, Caroline; Zaragori, Timothée; Bros, Marie; Bordonné, Manon; Melki, S.; Taillandier, Luc; Blonski, Marie; Roch, Véronique; Marie, Pierre-Yves; Karcher, Gilles; Imbert, Laëtitia; Verger, Antoine

doi:10.1007/s00330-023-09697-8

Cited by 7 publications

(3 citation statements)

References 41 publications

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“…In different centers, various methods including the assessment of SUV ratios (e.g. comparison to the superior sagittal sinus (SUVR SSS ) [42,57,58], contralateral brain meninges [59], liver in case of wholebody scanning [60,61]) or histologically verified SUV thresholds (2.3 for [ 68 Ga]Ga-DOTATATE [6]) are being utilized. In contrast to brain tumor imaging with radiolabelled amino acids, the healthy brain parenchyma in the contralateral hemisphere or in the centrum semi-ovale does not serve as reference region.…”

Section: Interpretation / Quantificationmentioning

confidence: 99%

“…So far, only one study has systematically compared uptake values on SSTR PET to histological results based on neuronavigated tissue sampling and suggested a SUV of 2.3 on [ 68 Ga]Ga-DOTATATE PET as optimal threshold for the differentiation between meningioma tissue and non-neoplastic tissue [6]. A recent study suggested a 1.7 fold meninges SUV peak as threshold for semiautomatic delineation of tumor volume [59]. SSTR PET-based tumor volume definition for radiotherapy planning has been investigated in few retrospective and small studies which indicated potentially increased accuracy and decreased interobserver variability compared to MRI [13,62].…”

Section: Cut-off Thresholds For Definition Of Biological Tumor Volumementioning

confidence: 99%

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Joint EANM/EANO/RANO/SNMMI practice guideline/procedure standards for diagnostics and therapy (theranostics) of meningiomas using radiolabeled somatostatin receptor ligands: version 1.0

Albert,

Preusser,

Traub-Weidinger

et al. 2024

Eur J Nucl Med Mol Imaging

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Purpose To provide practice guideline/procedure standards for diagnostics and therapy (theranostics) of meningiomas using radiolabeled somatostatin receptor (SSTR) ligands. Methods This joint practice guideline/procedure standard was collaboratively developed by the European Association of Nuclear Medicine (EANM), the Society of Nuclear Medicine and Molecular Imaging (SNMMI), the European Association of Neurooncology (EANO), and the PET task force of the Response Assessment in Neurooncology Working Group (PET/RANO). Results Positron emission tomography (PET) using somatostatin receptor (SSTR) ligands can detect meningioma tissue with high sensitivity and specificity and may provide clinically relevant information beyond that obtained from structural magnetic resonance imaging (MRI) or computed tomography (CT) imaging alone. SSTR-directed PET imaging can be particularly useful for differential diagnosis, delineation of meningioma extent, detection of osseous involvement, and the differentiation between posttherapeutic scar tissue and tumour recurrence. Moreover, SSTR-peptide receptor radionuclide therapy (PRRT) is an emerging investigational treatment approach for meningioma. Conclusion These practice guidelines will define procedure standards for the application of PET imaging in patients with meningiomas and related SSTR-targeted PRRTs in routine practice and clinical trials and will help to harmonize data acquisition and interpretation across centers, facilitate comparability of studies, and to collect larger databases. The current document provides additional information to the evidence-based recommendations from the PET/RANO Working Group regarding the utilization of PET imaging in meningiomas Galldiks (Neuro Oncol. 2017;19(12):1576–87). The information provided should be considered in the context of local conditions and regulations.

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Section: Interpretation / Quantificationmentioning

confidence: 99%

Section: Cut-off Thresholds For Definition Of Biological Tumor Volumementioning

confidence: 99%

Joint EANM/EANO/RANO/SNMMI practice guideline/procedure standards for diagnostics and therapy (theranostics) of meningiomas using radiolabeled somatostatin receptor ligands: version 1.0

Albert,

Preusser,

Traub-Weidinger

et al. 2024

Eur J Nucl Med Mol Imaging

Self Cite

View full text Add to dashboard Cite

show abstract

“…In addition to accurately marking the image pixels for dependable guidance. For more details, refer to the following sources [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%