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Table 5 Comparing the proportion of different vascular distributions and grade for parotid gland tumors by CDFI and SMI

From: The diagnostic value of Superb Microvascular Imaging in identifying benign tumors of parotid gland

  Vascular Distributions Vascular Grade
Avascular Peripheral Central Mixed Grade 0 Grade 1 Grade 2 Grade 3
CDFI 65 (26.1%) 70 (28.1%) 60 (24.1%) 54 (21.7%) 65 (26.1%) 73 (29.3%) 59 (23.7%) 52 (20.9%)
SMI 47 (18.9%) 75 (30.1%) 59 (23.7%) 67 (26.9%) 47 (18.9%) 60 (24.1%) 72 (28.9%) 70 (28.1%)
χ2 4.468 8.109
P value 0.215 0.040