Available online 11 November 2022
Highlights•TTE of breast cancer is shorter than benign lesions in pre and postmenopausal status
•TTE of breast cancer is shorter than normal breast parenchyma in premenopausal status
•TTE interval between breast cancer and parenchyma are shorter in premenopausal status
•Diagnostic performances are comparable in pre and postmenopausal status using TTE
•CS-derived TTE is useful for breast cancer diagnosis in pre and postmenopausal status
AbstractPurposeTo assess the dependency of the Time to enhancement (TTE) of breast lesions and normal breast parenchyma from menopausal status and menstrual cycle using ultrafast compressed sensing (CS) -accelerated dynamic contrast-enhanced (DCE) MRI.
MethodsThis institutional review board approved retrospective study included 89 breast cancers, 22 benign lesions and 131 normal breast parenchymal foci. A prototypical ultrafast DCE sequence obtained 30 phases with 2.9 s temporal resolution. Mean and median TTE of all breast cancers, benign lesions and normal breast parenchymal foci were assessed. we also assessed whether there were any differences in TTE regarding the menopausal status and menstrual cycle.
ResultsThe TTE of breast cancer was significantly shorter than that of benign lesions and normal breast parenchymal foci in both the premenopausal status (5.8 vs. 8.7 and 8.7 s, respectively) (p = 0.0028 and < 0.0001, respectively) and postmenopausal status (5.8 vs. 11.6 and 11.6 s, respectively) (p < 0.0001 in both). The TTE of parenchymal foci in the premenopausal status was significantly shorter than that in the postmenopausal status (p = 0.0025). Although the TTE interval between cancer and parenchymal foci in premenopausal status is shorter than that in postmenopausal status, the AUCs in the pre- and postmenopausal status for differentiating breast cancer and parenchymal foci were comparable with using different cutoff TTE values. There were no differences in TTE regarding the menstrual cycle.
ConclusionsThe TTE derived from ultrafast CS-accelerated DCE MRI was useful to differentiate breast cancer from benign lesions and normal breast parenchymal foci in both pre- and postmenopausal status.
KeywordsBreast cancer
Time to enhancement
Ultrafast
Menstrual status
Compressed sensing
MRI
© 2022 The Authors. Published by Elsevier Inc.
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