Keywords:
Liver, Management, Interventional non-vascular, MR, Ablation procedures, Cirrhosis, Neoplasia
Authors:
A. S. Morales Cárdenas, C. Aldana Silva, R. Martinez, J. M. PEREZ; Bogotá/CO
DOI:
10.1594/ecr2018/C-3040
Results
Demographic characteristics
The majority of patients were male (57.6%),
with an average age of 65.1 years.
39.4% were taken to liver transplant in the course of their pathology (Table 1).
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Hepatocarcinoma was the most frequent cause of focal liver lesions,
of which 100% had underlying cirrhosis.
The most frequent etiology of cirrhosis was C hepatitis virus infection,
most of them CHILD A (Table 1).
Laboratories
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Although there was a slight deterioration in liver function after the procedure,
the differences were not statistically significant (Table 2).
Imaging characteristics of focal liver lesions
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Radiofrequency ablation
The complete response was not related to the initial size of the lesion (Fig 1).
In the control MRI,
applying the mRECIST criteria we had 46.7% of complete response (Fig 2),
20% of partial response (Fig 3),
3.8% of stable disease and 19% of progression.
The majority of injuries received a single ablation sesión although 21 patients required additional sessions.
8.6% of patients required hydrodissection,
more frequently when the lesion was located in VI segment due to the proximity to other organs,
especially the hepatic angle of the colon or the gallbladder (Table 4).
The rate of complications,
both acute (2.8%) and late (4.75%) was low.
In the latter group,
the most prevalent was the failed ablation (Fig 4).