Keywords:
Breast, Oncology, MR, MR-Diffusion/Perfusion, Contrast agent-intravenous, Biopsy, Computer Applications-General, Cancer, Neoplasia
Authors:
A. MILON, S. Vandeperre, J. Poujol, E. Kermarrec, A. Bekhouche, I. Thomassin-Naggara; Paris/FR
DOI:
10.26044/ecr2019/C-1363
Aims and objectives
DCE breast MRI is an advanced imaging technique used to diagnose breast cancer with a reported sensitivity of 95-99% and specificity values of 72% in meta-analysis (1).
However,
breast MRI is a complex time-consuming examination for acquisition time.
Since 2014,
new breast MR protocols named FAST protocols have been developped,
chacterized by only one acquisition after contrast administration.
Many studies have demonstrated that these protocols have a similar sensitivity compared to conventional MRI protocols to detect breast cancer (2-7).
Nevertheless the realization of conventionnal enhancement curves is not possible with these protocols althought using dynamic information has been demonstrated to improve breast MRI specificity (8).
More recently,
some authors described new dynamic characteristics of breast lesions using an ULTRAFAST sequence oversampling the first minute after contrast administration,
and reported a correlation between early enhancement semi-quantitive parameters and lesion malignancy (9-15).
Our objective was to test a FAST protocol compared to a coventional protocol ; and then to test the diagnostic performance of an additionnal ULTRAFAST sequence oversampling the first minute after contrast administration to improve lesion classification while decreasing acquisition time.