Percutaneous radiofrequency ablation for hepatic metastasis of colorectal cancer: assessment of tumor visibility and the feasibility of the procedure with planning ultrasonography
Purpose The aim of this study was to assess the incidence and causes of percutaneous radiofrequency ablation (RFA) infeasibility in cases of metastatic colorectal cancer and to evaluate factors affecting the invisibility of the tumor on planning ultrasonography (US). Methods This study screened 386...
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| Format: | Article |
| Language: | English |
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Korean Society of Ultrasound in Medicine
2022-01-01
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| Series: | Ultrasonography |
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| Online Access: | http://www.e-ultrasonography.org/upload/usg-21050.pdf |
| _version_ | 1818974828118409216 |
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| author | Jeong Woo Bae Min Woo Lee Tae Wook Kang Kyoung Doo Song Dong Ik Cha Ji Hye Min Hyunchul Rhim |
| author_facet | Jeong Woo Bae Min Woo Lee Tae Wook Kang Kyoung Doo Song Dong Ik Cha Ji Hye Min Hyunchul Rhim |
| author_sort | Jeong Woo Bae |
| collection | DOAJ |
| description | Purpose The aim of this study was to assess the incidence and causes of percutaneous radiofrequency ablation (RFA) infeasibility in cases of metastatic colorectal cancer and to evaluate factors affecting the invisibility of the tumor on planning ultrasonography (US). Methods This study screened 386 patients who underwent planning US using fusion imaging and/or contrast-enhanced US for percutaneous RFA for suspected metastatic colorectal cancer between January 2013 and December 2020, from whom 136 patients with a single hepatic metastasis from colorectal cancer measuring <3 cm were included. The factors related to the infeasibility of percutaneous RFA were investigated. Univariate and multivariate analyses were performed to assess the factors associated with tumor invisibility on planning US. Results Among the 136 patients, percutaneous RFA was considered infeasible in 24.3% (33/136) due to a high risk of the heat-sink effect caused by the abutment of a large vessel (n=12), an inconspicuous tumor on planning US (n=11), a high risk of collateral thermal damage to an adjacent organ (n=8), and the absence of a safe electrode path (n=2). In univariate and multivariate analyses, tumor size was a statistically significant factor affecting invisibility on planning US (P=0.003 and P=0.018, respectively). Conclusion Percutaneous RFA was infeasible in approximately one-fourth of patients with metastatic colorectal cancer. The reason for the infeasibility was mainly an unfavorable tumor location and invisibility on planning US. Small tumor size was the sole significant factor affecting the invisibility of hepatic metastases on planning US. |
| first_indexed | 2024-12-20T15:46:15Z |
| format | Article |
| id | doaj.art-3e3b4d0ead474dda88708fd11c96ee3f |
| institution | Directory Open Access Journal |
| issn | 2288-5919 2288-5943 |
| language | English |
| last_indexed | 2024-12-20T15:46:15Z |
| publishDate | 2022-01-01 |
| publisher | Korean Society of Ultrasound in Medicine |
| record_format | Article |
| series | Ultrasonography |
| spelling | doaj.art-3e3b4d0ead474dda88708fd11c96ee3f2022-12-21T19:34:56ZengKorean Society of Ultrasound in MedicineUltrasonography2288-59192288-59432022-01-0141118919710.14366/usg.210501563Percutaneous radiofrequency ablation for hepatic metastasis of colorectal cancer: assessment of tumor visibility and the feasibility of the procedure with planning ultrasonographyJeong Woo Bae0Min Woo Lee1Tae Wook Kang2Kyoung Doo Song3Dong Ik Cha4Ji Hye Min5Hyunchul Rhim6 Sungkyunkwan University School of Medicine, Seoul, Korea Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, KoreaPurpose The aim of this study was to assess the incidence and causes of percutaneous radiofrequency ablation (RFA) infeasibility in cases of metastatic colorectal cancer and to evaluate factors affecting the invisibility of the tumor on planning ultrasonography (US). Methods This study screened 386 patients who underwent planning US using fusion imaging and/or contrast-enhanced US for percutaneous RFA for suspected metastatic colorectal cancer between January 2013 and December 2020, from whom 136 patients with a single hepatic metastasis from colorectal cancer measuring <3 cm were included. The factors related to the infeasibility of percutaneous RFA were investigated. Univariate and multivariate analyses were performed to assess the factors associated with tumor invisibility on planning US. Results Among the 136 patients, percutaneous RFA was considered infeasible in 24.3% (33/136) due to a high risk of the heat-sink effect caused by the abutment of a large vessel (n=12), an inconspicuous tumor on planning US (n=11), a high risk of collateral thermal damage to an adjacent organ (n=8), and the absence of a safe electrode path (n=2). In univariate and multivariate analyses, tumor size was a statistically significant factor affecting invisibility on planning US (P=0.003 and P=0.018, respectively). Conclusion Percutaneous RFA was infeasible in approximately one-fourth of patients with metastatic colorectal cancer. The reason for the infeasibility was mainly an unfavorable tumor location and invisibility on planning US. Small tumor size was the sole significant factor affecting the invisibility of hepatic metastases on planning US.http://www.e-ultrasonography.org/upload/usg-21050.pdfradiofrequency ablationmetastasisliverplanning ultrasonographydetection |
| spellingShingle | Jeong Woo Bae Min Woo Lee Tae Wook Kang Kyoung Doo Song Dong Ik Cha Ji Hye Min Hyunchul Rhim Percutaneous radiofrequency ablation for hepatic metastasis of colorectal cancer: assessment of tumor visibility and the feasibility of the procedure with planning ultrasonography Ultrasonography radiofrequency ablation metastasis liver planning ultrasonography detection |
| title | Percutaneous radiofrequency ablation for hepatic metastasis of colorectal cancer: assessment of tumor visibility and the feasibility of the procedure with planning ultrasonography |
| title_full | Percutaneous radiofrequency ablation for hepatic metastasis of colorectal cancer: assessment of tumor visibility and the feasibility of the procedure with planning ultrasonography |
| title_fullStr | Percutaneous radiofrequency ablation for hepatic metastasis of colorectal cancer: assessment of tumor visibility and the feasibility of the procedure with planning ultrasonography |
| title_full_unstemmed | Percutaneous radiofrequency ablation for hepatic metastasis of colorectal cancer: assessment of tumor visibility and the feasibility of the procedure with planning ultrasonography |
| title_short | Percutaneous radiofrequency ablation for hepatic metastasis of colorectal cancer: assessment of tumor visibility and the feasibility of the procedure with planning ultrasonography |
| title_sort | percutaneous radiofrequency ablation for hepatic metastasis of colorectal cancer assessment of tumor visibility and the feasibility of the procedure with planning ultrasonography |
| topic | radiofrequency ablation metastasis liver planning ultrasonography detection |
| url | http://www.e-ultrasonography.org/upload/usg-21050.pdf |
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