A proposed inclusion of magnetic resonance imaging features to the VI RADS to enhance its accuracy in predicting muscle invasion

Egyptian Journal of Radiology and Nuclear Medicine

Table 4 Categorical variables showing NO statistically significant differences between NMIBC and MIBC

Categorical variables with NO statistically significant differences	State of muscle invasion				χ²	p
	NMI (n = 41)		MI (n = 39)
	No	%	No	%
Trigonal affection	28	68.3	31	79.5	1.294	0.225
Bladder neck	21	51.2	24	61.5	0.865	0.352
Urethral extension	10	24.4	10	25.6	0.017	0.897
Posterior wall	25	61.0	25	64.1	0.083	0.773
lateral walls	32	78.0	34	87.2	1.154	0.283
Anterior wall	19	46.3	19	48.7	0.045	0.832
Dome and superior wall	16	39.0	15	38.5	0.003	0.959
Desmoplastic reaction	4	9.8	8	20.5	1.814	0.178

NMI non-muscle invasive, MI muscle invasive, χ² Chi-square test, p value statistically significant at < 0.05