Fig 1.
A 64-year-old female patient with sigmoid colon cancer showed a tiny low-attenuating lesion in the S8 of the liver on a dynamic CT scan (A–C).
Because this lesion showed no interval change for 2 years on follow-up imaging studies and presented as a high SI lesion on T2-weighted MR images, it was diagnosed as a hepatic cyst. The AEF color map presented the lesion as a nodule (arrow) with decreased AEF (D).
Fig 2.
A 68-year-old male patient who was diagnosed with rectosigmoid colon cancer had a low attenuating focal lesion in the S5 of the liver on dynamic CT (A–C).
Note that the lesion-adjacent parenchyma also exhibited increased AEF (green) on the AEF color map (D). The lesion was confirmed to be metastatic adenocarcinoma from the histopathologic report.
Table 1.
CT and AEF color map diagnostic criteria for the assessment of focal hepatic lesions.
Table 2.
Area under the receiver-operating characteristic curve of multiphasic CT and AEF color maps for the detection of colorectal liver metastases according to size.
Table 3.
Diagnostic performance of hepatic metastasis detection on multiphasic CT and AEF color maps.
Table 4.
k values for interobserver agreement.