Keywords:
Liver, Cone beam CT, Ablation procedures, Cancer
Authors:
P. P. RAGUCCI1, G. Marconi2, R. Ramberti2, A. Spinillo3, L. Solbiati4, V. Pedicini5, D. Poretti5, L. Balzarini6; 1ROZZANO, LO/IT, 2Rozzano (MI)/IT, 3Rozzano, Milano, Milano/IT, 4Rozzano (Milano)/IT, 5Milan/IT, 6Rozzano/IT
DOI:
10.26044/ecr2019/C-1835
Results
CBCT scans were technically adequate for 198/237 (83.5%) tumors,
while,
for the remaining 39/237 (16.5%) cases,
artifacts related to patients’ movements or breathing caused by local pain or partial awakening made CBCT scans not readable. In the group of 198 tumors with technically adequate CBCT exams,
technical success was considered achieved in 191/198 (96.5%) CBCT scans (with re-treatment of the unablated tumoral area immediately performed for the 7 malignancies in which residual viable tumor was demonstrated) and in 181/198 (91.4%) 24-hr post-ablation CT scans. In only 10 (5.1%) cases (7 HCC and 3 metastases) areas of residual viable tumor and/or insufficient ablative margins (thickness less then 5 mm) undetected on CBCT were visualized on CT.
No statistically significant differences for the achievement of technical success was found in the two groups of HCCs and metastases.
In addition,
in 5 cases CBCT allowed to discover rapid post-ablation development of perihepatic (4 cases) and intrahepatic (1) bleedings that in 2 cases required immediate embolization with complete recovery.