Insights into Imaging

Table 3 Presence of internal vessels in different diameter and RDR ranges

From: Significance of intra-nodular vessel sign in differentiating benign and malignant pulmonary ground-glass nodules

Range	Malignant GGN	Benign GGN	p value
Diameter (mm)
< 10	38/78 (48.72)	33/86 (38.37)	0.182
10–15	33/40 (82.50)	26/31 (83.87)	1.000
16–20	24/25 (96.00)	9/10 (90.00)	0.496
> 20	6/6 (100.00)	3/3 (100.00)	-
RDR (%)
0–24	17/37 (45.95)	13/45 (28.89)	0.111
25–49	35/50 (70.00)	32/49 (65.31)	0.618
50–74	20/24 (83.33)	11/14 (78.57)	1.000
75–100	29/38 (76.32)	15/22 (68.18)	0.492

Data in parentheses are expressed as number (percentage)
RDR, radius-distance ratio; GGN, ground-glass nodule

Back to article page