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Erschienen in: Abdominal Radiology 4/2016

02.04.2016

Microwave ablation of liver tumors: degree of tissue contraction as compared to RF ablation

verfasst von: Jeong Kyong Lee, Surachate Siripongsakun, Simin Bahrami, Steven S. Raman, James Sayre, David S. Lu

Erschienen in: Abdominal Radiology | Ausgabe 4/2016

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Abstract

Purpose

To compare the amount of tissue contraction after microwave (MW) versus radiofrequency (RF) ablation of liver tumors.

Materials and methods

Seventy-five hepatic tumors in 65 patients who underwent percutaneous MW or RF ablations were included in this retrospective study. All patients underwent MRI within 6 months before the ablation and 24 h after the procedure. Two blinded radiologists, by consensus, performed measurements on the corresponding series of pre and post-ablation MRI. Absolute and relative contraction of liver, tumor, and control were calculated and compared.

Results

Thirty-one patients underwent MW ablations, and 44 patients underwent RF ablations. The absolute and relative contraction of the ablation zone were significantly greater with MW than RF ablation (p = 0.003 to <0.001). Thirty-two lesions were visible on both pre- and post-ablation MRI. MW ablation had significantly more tumor contraction as compared to RF ablation (p = 0.003 to 0.009). The control measurements demonstrated no significant difference in normal tissue variation between MW and RF groups.

Conclusions

MW ablation of hepatic tumors produced significantly more contraction of tumor and ablated hepatic tissue compared to RF ablation. Tissue contraction should be taken into account during pre-procedural planning and assessing treatment response by comparing pre- and post-ablation images.
Literatur
1.
Zurück zum Zitat Qian GJ, Wang N, Shen Q, et al. (2012) Efficacy of microwave versus radiofrequency ablation for treatment of small hepatocellular carcinoma: experimental and clinical studies. Eur Radiol . doi:10.1007/s00330-012-2442-1 Qian GJ, Wang N, Shen Q, et al. (2012) Efficacy of microwave versus radiofrequency ablation for treatment of small hepatocellular carcinoma: experimental and clinical studies. Eur Radiol . doi:10.​1007/​s00330-012-2442-1
2.
Zurück zum Zitat Fan W, Li X, Zhang L, Jiang H, Zhang J (2012) Comparison of microwave ablation and multipolar radiofrequency ablation in vivo using two internally cooled probes. AJR Am J Roentgenol 198(1):W46–W50. doi:10.2214/AJR.11.6707 CrossRefPubMed Fan W, Li X, Zhang L, Jiang H, Zhang J (2012) Comparison of microwave ablation and multipolar radiofrequency ablation in vivo using two internally cooled probes. AJR Am J Roentgenol 198(1):W46–W50. doi:10.​2214/​AJR.​11.​6707 CrossRefPubMed
4.
6.
Zurück zum Zitat Wall MS, Deng XH, Torzilli PA, et al. (1999) Thermal modification of collagen. J Shoulder Elbow Surg 8(4):339–344CrossRefPubMed Wall MS, Deng XH, Torzilli PA, et al. (1999) Thermal modification of collagen. J Shoulder Elbow Surg 8(4):339–344CrossRefPubMed
12.
Zurück zum Zitat Brace CL, Laeseke PF, Sampson LA, et al. (2007) Microwave ablation with multiple simultaneously powered small-gauge triaxial antennas: results from an in vivo swine liver model. Radiology 244(1):151–156. doi:10.1148/radiol.2441052054 CrossRefPubMed Brace CL, Laeseke PF, Sampson LA, et al. (2007) Microwave ablation with multiple simultaneously powered small-gauge triaxial antennas: results from an in vivo swine liver model. Radiology 244(1):151–156. doi:10.​1148/​radiol.​2441052054 CrossRefPubMed
13.
Zurück zum Zitat Wright AS, Lee FT Jr, Mahvi DM (2003) Hepatic microwave ablation with multiple antennae results in synergistically larger zones of coagulation necrosis. Ann Surg Oncol 10(3):275–283CrossRefPubMed Wright AS, Lee FT Jr, Mahvi DM (2003) Hepatic microwave ablation with multiple antennae results in synergistically larger zones of coagulation necrosis. Ann Surg Oncol 10(3):275–283CrossRefPubMed
16.
17.
18.
Zurück zum Zitat Raman SS, Lu DS, Vodopich DJ, Sayre J, Lassman C (2000) Creation of radiofrequency lesions in a porcine model: correlation with sonography, CT, and histopathology. AJR Am J Roentgenol 175(5):1253–1258CrossRefPubMed Raman SS, Lu DS, Vodopich DJ, Sayre J, Lassman C (2000) Creation of radiofrequency lesions in a porcine model: correlation with sonography, CT, and histopathology. AJR Am J Roentgenol 175(5):1253–1258CrossRefPubMed
19.
Zurück zum Zitat Steinke K, King J, Glenn D, Morris DL (2003) Radiologic appearance and complications of percutaneous computed tomography-guided radiofrequency-ablated pulmonary metastases from colorectal carcinoma. J Comput Assist Tomogr 27(5):750–757CrossRefPubMed Steinke K, King J, Glenn D, Morris DL (2003) Radiologic appearance and complications of percutaneous computed tomography-guided radiofrequency-ablated pulmonary metastases from colorectal carcinoma. J Comput Assist Tomogr 27(5):750–757CrossRefPubMed
Metadaten
Titel
Microwave ablation of liver tumors: degree of tissue contraction as compared to RF ablation
verfasst von
Jeong Kyong Lee
Surachate Siripongsakun
Simin Bahrami
Steven S. Raman
James Sayre
David S. Lu
Publikationsdatum
02.04.2016
Verlag
Springer US
Erschienen in
Abdominal Radiology / Ausgabe 4/2016
Print ISSN: 2366-004X
Elektronische ISSN: 2366-0058
DOI
https://doi.org/10.1007/s00261-016-0725-8

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