Predicting the efficacy of microwave ablation of benign thyroid nodules from ultrasound images using deep convolutional neural networks

Table 2 Characteristics of patients and treated nodules divided by 3-month reduction ≥ or < 50%

Clinical Characteristics	VRR < 50%	VRR ≥ 50%	P value
Age	41.77 ± 11.67	46.04 ± 13.09	0.01*
Sex
Female	54	71	0.31
Male	16	27
Initial nodule volume, cm³	4.93 ± 11.31	10.69 ± 15.21	0.00*
3-month follow-up nodule volume, cm³	3.77 ± 7.48	1.78 ± 2.53	0.17
Nodule type			0.00*
Solid	55	25
Cystic	7	8
Predominantly cystic	7	62
Mixed	1	3
Shape			0.00*
Regular	35	87
Irregular	35	11
Boundary			0.59
Clear	66	92
Unclear	4	6
Internal Echo			0.16
Even	5	13
Uneven	65	85

ISSN: 1472-6947