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Updated: Jan 25, 2026

Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates
Published on: September 5, 2017
18F-fluoro-ethyl-tyrosine (18F-FET) PET/CT as a potential new diagnostic tool in multiple myeloma: a preliminary
Jarosław Czyż1, Bogdan Małkowski2, Artur Jurczyszyn3
1Department of Haematology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland.
Aim Of The Study:
The aim of this study was to analyse the diagnostic accuracy of "18F-fluoro-ethyl-tyrosine (18F-FET) PET/CT tracer in multiple myeloma.
Material And Methods:
The analysed group included: patients with newly diagnosed active myeloma (eight patients); in very good partial remission or complete remission (VGPR or CR) after treatment (nine patients); and with active disease after relapse (15 patients).
Results:
In patients with newly diagnosed myeloma, 64 lesions were found using CT and 83 lesions using 18F-FET. In six patients, the number of lesions using CT and 18F-FET was the same, and two had more lesions with the 18F-FET than with the CT. Patients in VGPR or CR had no FET-positive lesions. Fourteen out of 15 patients with active relapsed myeloma had 47 FET-positive lesions, CT assessment of the same group showed 282 lesions. In one patient with relapse soft tissue mass was found with 18F-FET but not with CT.
Conclusions:
18F-FET can be a promising alternative to 18F-FDG PET/CT for myeloma-related bone disease diagnosis.
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