| Central lower attenuating lesion in the ablation zone on immediate follow-up CT after percutaneous radiofrequency ablation for hepatocellular carcinoma: incidence and clinical significance. | |
| | |
MedLine Citation:
|
PMID: 19467813 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
PURPOSE: The purpose of this study was to evaluate the incidence of central lower attenuating (CLA) lesion in the ablation zone seen on immediate follow-up CT images after percutaneous radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC), and the correlation of CLA lesions and local tumor progression (LTP). SUBJECTS AND METHODS: The study group included 146 patients with 167 ablation zones that had undergone follow-up CT examinations for more than 12 months after percutaneous RFA. CLA lesions corresponding to index tumors and ablative margins (safety margins) were evaluated in the ablation zones seen on immediate follow-up CT including coronal and sagittal multiplanar reformatted (MPR) images with narrow window width settings. RESULTS: CLA lesions were depicted on 48 of 167 ablation zones (28.7%) on immediate follow-up CT images. Among the 48 ablation zones with CLA lesions, 27 (56.3%, 27/48) had ablative margins on all three of the orthogonal MPR images and they showed no LTP (0%) on follow-up CT examinations. Three of the ablation zones with CLA lesions (6.3%, 3/48) having an ablative margin on one plane only also showed no LTP (0%). LTP was observed in 2 of 18 ablation zones (11.1%) that had CLA lesions without ablative margins on all three planes. In the remaining 119 ablation zones without CLA lesions, 5 (4.2%, 5/119) showed LTP. CONCLUSION: CLA lesions in ablation zones were occasionally (28.7%) seen on immediate follow-up CT images after RFA for HCCs. The presence of CLA lesions with ablative margins might be a negative predictor of LTP. |
| | |
Authors:
|
Yulri Park; Dongil Choi; Hyunchul Rhim; Young-sun Kim; Ji Young Lee; Ilsoo Chang; Hyo K Lim; Cheol Keun Park |
Related Documents
:
|
15593433 - Usefulness of ct during renal arteriography: a case of percutaneous radiofrequency abla... 10861873 - Temperature monitoring of internal body heating induced by decoupling pulses in animal ... 3052123 - Preoperative localization of parathyroid adenomas. |
Publication Detail:
|
Type: Journal Article Date: 2009-05-20 |
Journal Detail:
|
Title: European journal of radiology Volume: 75 ISSN: 1872-7727 ISO Abbreviation: Eur J Radiol Publication Date: 2010 Sep |
Date Detail:
|
Created Date: 2010-09-20 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8106411 Medline TA: Eur J Radiol Country: Ireland |
Other Details:
|
Languages: eng Pagination: 391-6 Citation Subset: IM |
Copyright Information:
|
Copyright © 2009 Elsevier Ireland Ltd. All rights reserved. |
Affiliation:
|
Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, #50, Ilwon-dong, Gangnam-gu, Seoul 135-710, Republic of Korea. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: What is the best contrast injection protocol for 64-row multi-detector cardiac computed tomography?
Next Document: The role of time-resolved 3D contrast-enhanced MR angiography in the assessment and grading of cereb...