Joint Segmentation and Groupwise Registration of Cardiac Perfusion Images Using Temporal Information

Table 1

Summary of registration and segmentation performance on cardiac perfusion datasets. The values indicate average and standard deviations for all datasets.

	Registration error (mm)					Segmentation result
	Before	After registration				𝐷𝑀 (%)
	Registration	𝐽𝑆𝐺𝑅	𝑀𝑒𝑡1	𝑀𝑒𝑡2	𝐽𝑅𝑆	𝐽𝑆𝐺𝑅	𝑀𝑒𝑡1	𝑀𝑒𝑡2	𝐽𝑅𝑆
LV epicardium	2.2±1.2	0.7±0.1	1.0±0.2	1.1±0.1	0.8±0.4	93.6±0.7	90.1±0.3	90.6±0.6	92.1±1.1
LV endocardium	2.8±1.0	0.5±0.2	0.9±0.1	0.9±0.2	0.7±0.3	92.8±0.6	88.9±0.1	88.4±0.3	92.1±0.8
LV overall	2.6±1.1	0.5±0.2	0.9±0.3	1.0±0.1	0.7±0.4	93.1±0.5	89.4±0.2	88.8±0.8	92.1±0.9