Table 2.

Number of available iUS images, as well as number of single, sequence of, and selected iUS images for each patient. Each single acquisition included one iUS image, while each sequence of acquisitions included 20 iUS images acquired continuously in approximately 2 sec. Two images were selected for each sequence of acquisitions, while all single acquisitions were selected, provided that the corresponding spatial location of the respective US scan-head was available. Numbers in parentheses indicate the iUS images selected from each type of iUS image acquisition, which added to the total number of selected iUS images in the bottom row.

Patient	1	2	3	4	5	6
Available iUS images	69	127	68	151	15	85
Single iUS images	9 (7)	7 (3)	8 (6)	11 (9)	15 (9)	5 (5)
Sequence of iUS images	3 (6)	6 (9)	3 (5)	7 (14)	0 (0)	4 (8)
Selected iUS images	13	12	11	23	9	13