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CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2012; 22(04): 251-253
DOI: 10.4103/0971-3026.111470
ORIGINAL ARTICLE

Fusion of intravenous contrast-enhanced C-arm CT and pretreatment imaging for ablation margin assessment of liver tumors: A preliminary study

Jin Iwazawa
Department of Radiology, Nissay Hospital, Itachibori, Nishiku, Osaka
,
Naoko Hashimoto
Department of Radiology, Nissay Hospital, Itachibori, Nishiku, Osaka
,
Takashi Mitani
Department of Radiology, Nissay Hospital, Itachibori, Nishiku, Osaka
,
Shoichi Ohue
Department of Radiology, Komatsu Hospital, Kawakatsucho, Neyagawa
› Author Affiliations Source of Support: Nill.
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Abstract

The aim of this preliminary study was to evaluate the feasibility of assessing ablation margins after radiofrequency ablation (RFA) of liver tumors from fusion images of post-treatment C-arm computed tomography (CT) images fused to pretreatment images. Five patients with liver tumors underwent RFA. Intravenous contrast-enhanced C-arm CT images were obtained for all patients immediately after RFA, and multi-detector CT (MDCT) images were obtained 3-7 days later. The C-arm CT and MDCT images were fused to pretreatment images using a multimodality image fusion software. The minimum ablation margins were assessed in the C-arm CT and MDCT fusion images. Ablation margins after RFA of liver tumors can be measured using intravenous contrast-enhanced C-arm CT images fused with pretreatment images. This technique has the potential for use in the intra-procedural assessment of liver tumor ablation.

Keywords

Cone-beam CT - multimodality fusion - radiofrequency ablation - safety margin


Publication History

Article published online:
04 October 2021

© 2012. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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