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Published in: Pituitary 4/2022

Open Access 26-05-2022 | Prolactinoma

Implementation of functional imaging using 11C-methionine PET-CT co-registered with MRI for advanced surgical planning and decision making in prolactinoma surgery

Authors: Leontine E. H. Bakker, Marco J. T. Verstegen, Eidrees Ghariq, Berit M. Verbist, Pieter J. Schutte, Waiel A. Bashari, Mark C. Kruit, Alberto M. Pereira, Mark Gurnell, Nienke R. Biermasz, Wouter R. van Furth, Lenka M. Pereira Arias Bouda

Published in: Pituitary | Issue 4/2022

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Abstract

Purpose

To report the first experience of our multidisciplinary team with functional imaging using 11C-methionine positron emission tomography-computed tomography (11C-methionine PET-CT) co-registered with MRI (Met-PET/MRICR) in clinical decision making and surgical planning of patients with difficult to treat prolactinoma.

Methods

In eighteen patients with prolactinoma, referred to our tertiary referral centre because of intolerance or resistance for dopamine agonists (DA), Met-PET/MRICR was used to aid decision-making regarding therapy.

Results

Met-PET/MRICR was positive in 94% of the patients. MRI and Met-PET/MRICR findings were completely concordant in five patients, partially concordant in nine patients, and non-concordant in four patients. In five patients Met-PET/MRICR identified lesion(s) that were retrospectively also visible on MRI. Met-PET/MRICR was false negative in one patient, with a cystic adenoma on conventional MRI. Thirteen patients underwent transsphenoidal surgery, with nine achieving full biochemical remission, two clinical improvement and near normalized prolactin levels, and one patient clinical improvement with significant tumour reduction. Hence, nearly all patients (94%) were considered to have a positive outcome. Permanent complication rate was low. Three patients continued DA, two patients have a wait and scan policy.

Conclusion

Met-PET/MRICR can provide additional information to guide multidisciplinary preoperative and intraoperative decision making in selected cases of prolactinoma. This approach resulted in a high remission rate with a low rate of complications in our expert centre.
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Metadata
Title
Implementation of functional imaging using 11C-methionine PET-CT co-registered with MRI for advanced surgical planning and decision making in prolactinoma surgery
Authors
Leontine E. H. Bakker
Marco J. T. Verstegen
Eidrees Ghariq
Berit M. Verbist
Pieter J. Schutte
Waiel A. Bashari
Mark C. Kruit
Alberto M. Pereira
Mark Gurnell
Nienke R. Biermasz
Wouter R. van Furth
Lenka M. Pereira Arias Bouda
Publication date
26-05-2022
Publisher
Springer US
Published in
Pituitary / Issue 4/2022
Print ISSN: 1386-341X
Electronic ISSN: 1573-7403
DOI
https://doi.org/10.1007/s11102-022-01230-2

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