Article (Scientific journals)
Comparative dosimetry between (99m)Tc-MAA SPECT/CT and (90)Y PET/CT in primary and metastatic liver tumors.
JADOUL, Alexandre; Bernard, Claire; LOVINFOSSE, Pierre et al.
2020In European Journal of Nuclear Medicine and Molecular Imaging, 47 (4), p. 828-837
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Keywords :
Dosimetry; Hepatocarcinoma; Liver metastases; Microspheres; Radioembolization
Abstract :
[en] INTRODUCTION: The aim of this study is to determine whether (99m)Tc-MAA SPECT/CT-based dosimetry could predict the actual absorbed dose in hepatocellular carcinoma (HCC) or liver metastases, treated by glass or resin microspheres. MATERIAL AND METHODS: Fifty-seven patients who underwent selective internal radiation therapy (SIRT) were retrospectively included in the study, for a total of 59 treatments. Nineteen HCC were treated by resin microspheres (HCC-SIR), 20 HCC with glass microspheres (HCC-Thera), and 20 liver metastases with resin microspheres (Metastases-SIR). The mean absorbed doses in tumoral liver (Dm) and non-tumoral liver (DmNTL) were determined on the (99m)Tc-MAA SPECT/CT and the (90)Y PET/CT, and compared with each other. RESULTS: DmNTL was < 50 Gy in the 3 groups, with a strong correlation in all population, albeit slightly lower in Metastases-SIR than HCC-SIR and HCC-Thera (CCC 0.8, 0.94 and 0.96, respectively). In tumoral liver, Dm was higher in HCC than metastases (159 ± 117 Gy versus 63 ± 31 Gy). (99m)Tc-MAA SPECT/CT proved to be a better indicator of Dm in HCC compared with metastases, with similar (99m)Tc-MAA-(90)Y concordance in resin and glass microspheres (CCC HCC-SIR 0.82, CCC HCC-Thera 0.82, and CCC Metastases-SIR 0.52). CONCLUSION: (99m)Tc-MAA SPECT/CT is a reasonably reliable tool for predicting the dose to the non-tumoral liver in both HCC and metastases, regardless of the type of microspheres. It is also fairly reliable for predicting the tumor dose in HCC, again regardless of the type of spheres, although individual variations are observed.
Disciplines :
Radiology, nuclear medicine & imaging
Author, co-author :
JADOUL, Alexandre ;  Centre Hospitalier Universitaire de Liège - CHU > Département de Physique Médicale > Service médical de médecine nucléaire et imagerie onco
Bernard, Claire ;  Université de Liège - ULiège > Département de physique > Département de physique
LOVINFOSSE, Pierre 
GERARD, Laurent 
LILET, Henri 
Cornet, Olivier
Hustinx, Roland  ;  Université de Liège - ULiège > Département des sciences cliniques > Médecine nucléaire
Language :
English
Title :
Comparative dosimetry between (99m)Tc-MAA SPECT/CT and (90)Y PET/CT in primary and metastatic liver tumors.
Publication date :
2020
Journal title :
European Journal of Nuclear Medicine and Molecular Imaging
ISSN :
1619-7070
eISSN :
1619-7089
Publisher :
Springer, Germany
Volume :
47
Issue :
4
Pages :
828-837
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 February 2021

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