Table 1.

Description of labels and color codes used for PICC line and PICC tip ROI segmentation

Label	Color codes	Description
PICC line segmentation
Background  PICC	0 (black) 1 (red)	Any pixels that any labels are not assigned to PICC lines
ECG	2 (green)	ECG cables
Lines	3 (dark yellow)	Any line-shaped objects excluding PICC and ECG
Threads	4 (blue)	Surgical sutures and staples, used for closing surgical incisions
Tubes	5 (purple)	Any tube-shaped objects
Objects	6 (dark cyan)	Any foreign structures, such as pacemaker devices, simulators, catheter hubs, and ECG electrodes
PICC tip ROI segmentation
Background	0 (black)	Any pixels that any labels are not assigned to
PICC tip ROI	1 (dark orange)	Subregion of the lung zone excluding the subphrenic areas