Value of magnetic resonance diffusion combined with perfusion imaging techniques for diagnosing potentially malignant breast lesions

Table 4 Imaging diagnosis and pathological results of granulomatous mastitis and breast cancer by perfusion-weighted imaging and diffusion-weighted imaging

	Positive	False-positive	Negative	False-negative	Total	Sensitivity (%)	Specificity (%)	Accuracy (%)
PWI	41	8	39	7	95	85.4	83.0	84.2
DWI	35	14	37	9	95	79.5	72.5	75.8
PWI combined with DWI	44	5	42	4	95	91.7	89.3	90.5

Positive: Diagnosed malignant by magnetic resonance imaging; Negative: Diagnosed benign by magnetic resonance imaging; PWI: Perfusion-weighted imaging; DWI: Diffusion-weighted imaging.