Table 4. MRI structure report of hepatic metastatic tumor^*.

1. No. of liver metastatic tumors: 1−3 [　] 4−7 [　] 8 or more [　]
*, only applicable to cases with hepatic metastasis considered by abdominal contrast-enhanced MRI. Not applicable for patients with liver metastasis after treatment. MRI, magnetic resonance imaging; LN, lymph node; CT, computed tomography.
2. Size of hepatic metastatic tumor: The largest lesion _____ mm is located in _____ segment
3. Distribution of lesions:
Caudate	S1 [　]
Left lobe	S2 [　]				S3 [　]			S4 [　]
Right lobe	S5 [　]				S6 [　]			S7 [　]				S8 [　]
4. Relationship with important blood vessels:
Right portal vein			Trunk		Not shown [　]		Shift [　]			Next to [　]				Well-defined [　]
			Branch		Not shown [　]		Shift [　]			Next to [　]				Well-defined [　]
Left portal vein			Trunk		Not shown [　]		Shift [　]			Next to [　]				Well-defined [　]
			Branch		Not shown [　]		Shift [　]			Next to [　]				Well-defined [　]
Right hepatic vein					Not shown [　]		Shift [　]			Next to [　]				Well-defined [　]
Middle hepatic vein					Not shown [　]		Shift [　]			Next to [　]				Well-defined [　]
Left hepatic vein					Not shown [　]		Shift [　]			Next to [　]				Well-defined [　]
Inferior vena cava					Not shown [　]		Shift [　]			Next to [　]				Well-defined [　]
5. Hilar lymph nodes: Yes [　] No [　]
Size of the largest LN _____ mm × _____ mm
6. Origin of vascular variation:
Left hepatic artery				Arteria hepatica propria [　]					Left gastric artery [　]
Right hepatic artery				Arteria hepatica propria [　]					Superior mesenteric artery [　]
Common hepatic artery				Celiac trunk [　]					Superior mesenteric artery [　]						Abdominal aorta [　]
7. Uncertain transfer lesions: Yes [　] No [　]
8. Location distribution of uncertain transfer lesions:
Caudate		S1 [　]
Left lobe		S2 [　]				S3 [　]					S4 [　]
Right lobe		S5 [　]				S6 [　]					S7 [　]			S8 [　]
Suggestions: For the lesions less than 10 mm shown by CT results, it is recommended that indeterminate metastatic lesions should be classified and further evaluation by hepatic contrast-enhanced MRI should be done, except for those with typical metastatic tumor features
9. Others