Table 6. Correlative studies between perfusion parameters on breast DCE MRI and prognostic factors.

	Li's [27]	Koo's [23]	Kim's [13]	Yim's [22]	Present study
Inclusion	Invasive cancer	Invasive cancer	DCIS, Invasive cancer	Invasive cancer	Invasive ductal carcinoma
Case number	37	70	50	64	81
MRI	1.5T	1.5T	3T	1.5T	3T
DCE model	Tofts	Tofts	Tofts	NM	Tofts
Perfusion parameters	Ktrans, kep, ve, iAUC	Ktrans, kep, ve	Ktrans, kep, ve, iAUC	kep	Ktrans, kep, ve
ROI	entire tumor on section	largest area on section	small area with high Ktrans	tumor margin	tumor volume
Prognostic factors	subtype(TNC,L)	tumor size, LN, HG, NG, ER, PR, Ki-67, p53, Bcl-2, HER2, subtype (TNC,L,HER2)	tumor size, LN, HG, NG, ER, PR, HER2, EGFR, Bcl, CK5/6, Ki-67, subtype (TNC,L,HER2)	tumor size, HG, ER, HER2	tumor size, LN, HG, ER, PR, HER2, subtype (TNC,L,HER2)
Results	P(kep,TNC) N(ve,TNC) No-others	N(Ktrans,ER positivity) P(kep, HG) N(kep, ER positivity) P(kep, TNC)-TNC vs. L N(ve, TNC)-TNC vs. L	P(Ktrans, Ki-67 positivity) P(kep, ER positivity) P(kep, Ki-67 positivity) No-others	No-all	P(Ktrans, tumor size) No-others

Note–M, not mentioned; ROI, region of interest on DCE MRI;LN,lymph node; HG, histologic grade; NG, nucelar grade; TNC, triple negative cancer subtype; L, luminal type; HER2, Her2 enriched type; P, positive correlation; N, negative correlation; No, no correlation