TY - JOUR
T1 - Hepatocellular carcinomas within the Milan criteria
T2 - Predictors of histologic necrosis after drug-eluting beads transarterial chemoembolization
AU - Odisio, Bruno C.
AU - Galastri, Francisco
AU - Avritscher, Rony
AU - Afonso, Breno B.
AU - Segatelli, Vanderlei
AU - Felga, Guilherme E.G.
AU - Salvalaggio, Paolo R.O.
AU - Ensor, Joe
AU - Wallace, Michael J.
AU - Nasser, Felipe
N1 - Funding Information:
Michael J. Wallace was supported by a grant from Siemens Medical Solutions. The other authors declare that they have no conflict of interest.
PY - 2014/8
Y1 - 2014/8
N2 - Purpose: To evaluate pathologic, imaging, and technical predictors of therapy response in patients with hepatocellular carcinoma (HCC) within the Milan criteria undergoing doxorubicin drug-eluting beads transarterial chemoembolization (DEB-TACE) before orthotopic liver transplantation (OLT). Methods: This prospective study included consecutive patients with HCC who underwent DEB-TACE before OLT. Tumor histologic necrosis on liver explants was utilized as the standard of reference to categorize treated HCCs as group 1 (>50 % necrosis) or group 2 (≤50 % necrosis). DEB-TACE technique, histological factors, and imaging evaluation utilizing the modified Response Evaluation Criteria in Solid Tumors (mRECIST) were compared between groups 1 and 2. Results: Twenty-seven HCCs were identified in 23 patients. Group 1 comprised 18 HCCs (mean necrosis 86.2 %). Group 2 comprised 9 HCCs (mean necrosis 31.1 %). The mean time between the last DEB-TACE session and the OLT was 112 days. Lesion size was significantly larger in group 1 (mean 3.2 cm; 95 % confidence interval 2.55-3.85) than in group 2 (mean 2.1 cm; 95 % confidence interval 1.79-2.48) (p = 0.030). Group 1 also demonstrated a higher frequency of encapsulated lesions when compared to group 2 (78 % vs. 22 %; p = 0.0027). A significant linear correlation was found between the quantification of necrosis by imaging and pathology (p = 0.0011) using the mRECIST, with a poorer correlation index in group 2. Conclusion: Larger and encapsulated HCCS are associated with a higher percentage of necrosis. A significant linear correlation between the amount of necrosis by imaging and pathology was encountered when mRECIST was utilized.
AB - Purpose: To evaluate pathologic, imaging, and technical predictors of therapy response in patients with hepatocellular carcinoma (HCC) within the Milan criteria undergoing doxorubicin drug-eluting beads transarterial chemoembolization (DEB-TACE) before orthotopic liver transplantation (OLT). Methods: This prospective study included consecutive patients with HCC who underwent DEB-TACE before OLT. Tumor histologic necrosis on liver explants was utilized as the standard of reference to categorize treated HCCs as group 1 (>50 % necrosis) or group 2 (≤50 % necrosis). DEB-TACE technique, histological factors, and imaging evaluation utilizing the modified Response Evaluation Criteria in Solid Tumors (mRECIST) were compared between groups 1 and 2. Results: Twenty-seven HCCs were identified in 23 patients. Group 1 comprised 18 HCCs (mean necrosis 86.2 %). Group 2 comprised 9 HCCs (mean necrosis 31.1 %). The mean time between the last DEB-TACE session and the OLT was 112 days. Lesion size was significantly larger in group 1 (mean 3.2 cm; 95 % confidence interval 2.55-3.85) than in group 2 (mean 2.1 cm; 95 % confidence interval 1.79-2.48) (p = 0.030). Group 1 also demonstrated a higher frequency of encapsulated lesions when compared to group 2 (78 % vs. 22 %; p = 0.0027). A significant linear correlation was found between the quantification of necrosis by imaging and pathology (p = 0.0011) using the mRECIST, with a poorer correlation index in group 2. Conclusion: Larger and encapsulated HCCS are associated with a higher percentage of necrosis. A significant linear correlation between the amount of necrosis by imaging and pathology was encountered when mRECIST was utilized.
KW - Drug-eluting beads
KW - Hepatocellular carcinoma (HCC)
KW - Interventional oncology
KW - Modified RECIST
KW - Transarterial chemoembolization
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U2 - 10.1007/s00270-013-0759-z
DO - 10.1007/s00270-013-0759-z
M3 - Article
C2 - 24149832
AN - SCOPUS:84904572099
SN - 0174-1551
VL - 37
SP - 1018
EP - 1026
JO - CardioVascular and Interventional Radiology
JF - CardioVascular and Interventional Radiology
IS - 4
ER -