Fig. 4From: Matrix 3D ultrasound-assisted thyroid nodule volume estimation and radiofrequency ablation: a phantom studyAblation results using conventional two-dimensional (2D) and three-dimensional mechanically swept (3Dms) transducer guidance. The blue triangle indicates the danger triangle, free from ablation in the nodule and outside the nodule. The magenta colour in the body indicates an overablation outside the noduleBack to article page