Erschienen in:
01.07.2015 | Original Scientific Report
Preoperative 11C-Methionine PET/CT Enables Focussed Parathyroidectomy in MIBI-SPECT Negative Parathyroid Adenoma
verfasst von:
Christina Lenschow, Peter Gassmann, Christian Wenning, Norbert Senninger, Mario Colombo-Benkmann
Erschienen in:
World Journal of Surgery
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Ausgabe 7/2015
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Abstract
Background
Precise preoperative localization is essential for focussed parathyroidectomy. The imaging standard consists of cervical ultrasonography (cUS) and 99mTc-MIBI-SPECT (MIBI-SPECT). 11C-methionine positron emission tomography/computed tomography (Met-PET/CT) is a promising method for localizing parathyroid adenomas. The objective of our study was to elucidate whether additional Met-PET/CT increases the rate of focussed parathyroidectomy.
Methods
Fourteen patients with primary hyperparathyroidism (HPT) and three patients with tertiary HPT underwent cUS and MIBI-SPECT. Met-PET/CT was carried out in patients with negative MIBI results. Subsequent surgical strategy was adapted according to imaging results.
Results
cUS localized a single parathyroid adenoma in 10/17 patients (59 %), while MIBI-SPECT/CT identified 11/17 single adenomas (65 %). In the remaining six patients, Met-PET/CT identified five single adenomas. This step-up approach correctly identified single adenomas in 16/17 patients (94 %).
Conclusion
Met-PET/CT raises the rate of correctly localized single parathyroid adenomas in patients with negative cUS and MIBI-SPECT/CT and increases the number of focussed surgical approaches.