Table 2.

Evaluation of Delta algorithm performance for clinical fields

Case	Field size		Total delivered intensities			Marker visibility (%)
			Initial	Optimal	Optimal (SMLC)	Initial	Optimal	Optimal (SMLC)
Patient 1	Beam 1	22 × 19	28	28	10	39.29	39.29	100
	Beam 2	22 × 19	30	30	11	31.33	33.33	100
	Beam 3	22 × 22	39	39	17	28.21	33.33	70.59
	Beam 4	22 × 18	30	30	12	28.67	28.67	100
	Beam 5	22 × 20	29	29	10	42.07	45.52	90.00
Patient 2	Beam 1	20 × 19	29	29	10	28.97	31.72	60.00
	Beam 2	20 × 16	29	29	13	26.90	31.72	92.31
	Beam 3	20 × 22	38	38	17	26.32	31.58	76.47
	Beam 4	20 × 16	26	26	10	27.69	35.38	100
	Beam 5	20 × 17	26	26	10	49.23	49.23	100
Patient 3	Beam 1	22 × 25	35	35	11	22.29	36.57	63.64
	Beam 2	21 × 24	37	37	13	5.41	5.41	53.85
	Beam 3	23 × 23	38	38	15	25.26	25.26	80.00
	Beam 4	22 × 24	38	38	14	11.58	28.95	35.71
	Beam 5	23 × 24	43	43	19	25.58	29.77	100