Abstract
Aim
The aim of the present review is to assess the diagnostic performance of PET/CT and PET/MRI in breast cancer patients, by a head-to-head comparison.
Materials and methods
Two reviewers conducted the literature search, study inclusion and data extraction in duplicate. A literature search for studies on a head-to-head comparison between PET/CT and PET/MRI in breast cancer patients was carried out. MEDLINE databases, such as PubMed and Scopus were consulted using the following keywords: “PET/CT” AND “PET/MRI” AND “breast cancer”. Data about the diagnostic accuracy was collected, if available, in terms of sensitivity, specificity and accuracy.
Results
Between 2014 and 2018, 8 articles were available about the head-to-head comparison between PET/CT and PET/MRI in breast cancer patients. PET/CT has a lower sensitivity for the detection of contralateral breast cancer and bone metastasis as compared to PET/MRI. PET/MRI and PET/CT has a similar diagnostic accuracy for the detection of axillary, internal mammary and mediastinal lymph node involvement. Semiquantitative parameters by PET/MRI are higher than those computed by PET/CT, but a strong organ-specific correlation between them was found.
Conclusions
PET/MRI has some advantages in breast cancer, being able to detect more primary and skeletal/non-skeletal distant metastases, as compared to PET/CT, thanks to the advantages from the combined MRI.
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Acknowledgements
The authors are thankful to the Department of Nuclear Medicine, IRCCS San Raffaele Scientific Institute, Milan, Italy for providing representative images of PET/CT and PET/MRI in breast cancer.
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Evangelista, L., Cuppari, L., Burei, M. et al. Head-to-head comparison between 18F-FDG PET/CT and PET/MRI in breast cancer. Clin Transl Imaging 7, 99–104 (2019). https://doi.org/10.1007/s40336-019-00319-2
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DOI: https://doi.org/10.1007/s40336-019-00319-2