Diagnosis System for Hepatocellular Carcinoma Based on Fractal Dimension of Morphometric Elements Integrated in an Artificial Neural Network

Table 1

Characteristics of the patient lot.

	Hepatocellular carcinoma		Liver metastases
	Men	Women	Men	Women
Number of cases	17	4	20	8
Median age (min/max)*	54 (48/69)	59 (44/68)	51 (43/66)	50 (46/70)
Preexisting conditions
Chronic viral hepatitis B	3	0	0	0
Chronic viral hepatitis C	2	1	1	0
Cirrhosis (B)	6	3	0	0
Cirrhosis (C)	3	0	0	0
Cirrhosis (B and C)	2	0	0	0
Other malignancies	0	0	20	8
Alcohol consumption	9	0	8	0
Smoking	11	2	14	3
Characteristics of the tumor
Single tumor**	17	4	17	6
Median size (min/max)***	1.9 (1.0/2.0)	1.7 (1.0/1.9)	6.1 (2.4/7.1)	5.9 (2.1/8.2)

∗Age in years; **for multiple tumors, only the largest in size is reported in the table; ***diameter in centimeters.