Table 1.

Prediction accuracy with matching uncertainties based on 4Hz motion waveforms.

Patient	Diaphragm motion (mm)	4DMRI libraries		AR accuracy (mm) b					LSTM accuracy (mm) b
		Inhale phases	Exhale phases	Prediction			Matched		Prediction			Matched
				AVG a	STD	t (s)	AVG a	STD	AVG a	STD	t (s)	AVG a	STD
1	15.8	89	122	0.24	0.20	0.44	0.30	0.20	0.42	0.28	1.47	0.47	0.32
2	12.9	97	118	0.26	0.20	0.44	0.31	0.17	0.59	0.55	1.46	0.62	0.58
3	20.7	108	110	0.44	0.36	0.44	0.47	0.36	0.88	0.70	1.50	0.93	0.70
4	14.4	108	111	0.45	0.32	0.44	0.48	0.35	0.61	0.39	1.49	0.64	0.38
5	9.6	101	117	0.25	0.19	0.44	0.31	0.18	0.24	0.21	1.45	0.27	0.21
6	15.8	114	102	0.33	0.28	0.44	0.47	0.49	0.64	0.61	1.47	0.65	0.63
7	11.6	95	122	0.42	0.24	0.44	0.42	0.26	0.75	0.48	1.45	0.78	0.51
8	29.1	92	125	0.47	0.49	0.44	0.63	0.49	0.81	1.34	1.45	0.97	1.24
AVG	16.2	100.5	115.9	0.36	0.29	0.44	0.42	0.31	0.62	0.57	1.47	0.67	0.57
STD	6.2	8.8	7.7	0.10	0.10	0.00	0.11	0.13	0.21	0.35	0.02	0.23	0.32

The AR (autoregression) and LSTM (long short-term memory) prediction accuracy and performance, diaphragm motion, two TR-4DMRI libraries in the inhalation and exhalation, and the library matching errors are provided. The AR method provides more accurate prediction results using less time than that of the LSTM method.

^ap-value <0.02 for both prediction and matched accuracy between AR and LSTM.

^bNo significant difference between prediction and matched accuracy using either AR or LSTM.