Table 3.

Learning targets of the “virtual station” within the hands-on training (HOT).

Picture number	Related topic	Mode (B/M)	Details to recognize	Difficulty level
1	Normal and edema	B	A-line, reverberation artifacts, multiple B-lines	2
2	Normal	B	Peritoneum, kidney, and bony rib artifact with posterior acoustic shadowing	1
3	Fluid differential diagnosis	B	Four B-mode views of fluids: subdiaphragmatic fluid and liver, ascites, spleen, and diaphragm, PLE, lobe atelectasis, diaphragm and liver, and ascites and small bowel	1
4	PLE	B	Spleen, fluid, and compression atelectasis	1
5	PLE/ascites	B	Small amounts of PLE, diaphragm, and ascites	2
6	Acoustic shadowing, anatomy and, stone	B	Liver and hyperechogenic diaphragm, gall bladder and stone with posterior acoustic shadowing	1
7	PLE, M-mode appearance	B and M	Small PLE, multiple comet tails, A-line, and separated visceral pleura	2
8	PLE	B	Large amount of PLE, good view of diaphragm and spleen	1
9	Peripheral pulmonary embolism	B	Visible triangular break in visceral pleural line due to peripheral pulmonary embolism, lung tissue	2
10	Lung pulse, normal M-mode	B and M	Reverberation artifacts of pleural line, lung pulse, sonoanatomical finding of “seashore” sign in the M-mode	2
11	Stratosphere sign	B and M	Multiple reverberation artifacts, pleural line	2
12	Lung point	B and M	Breakup of pleural line (change point between seashore/stratosphere sign)	2

PLE: pleural effusion; PTX: pneumothorax; US: ultrasound examination.