Current Status and Future Prospects of Proton MR Spectroscopy of the Breast with a 1.5T MR Unit

Table 1

The diagnostic power of proton MR spectroscopy for breast lesions.

Study	year	No. of malignant lesions	No. of benign lesions	Sensitivity (%)	Specificity (%)	No. of false-positive findings	PPV (%)
Roebuck et al. [17]	1998	10	7	70	86	1	88
Kvistad et al. [5]	1999	11	11	82	82	2	82
Cecil et al. [18]	2001	23	15	83	87	2	90
Yeung et al. [19]	2001	24	6	92	83	1	97
Jagannathan et al. [20]	2001	32	14	81	86	2	93
Tes et al. [21]	2003	19	27	89	100	0	100
Huang et al. [15]	2004	18	12	100	67	4	82
Bartella et al. [16]	2006	31	26	100	88	3	91
Sardanelli et al. [22]	2009	19	26	84	88	3	84
Tozaki et al. [23]	2009	91	80	44	85	12	77
Tozaki et al. [23]*	2009	34	16	82	69	5	85

*masses measuring 15 mm or more.