Microwave Ablation with Loop Antenna: In Vivo Porcine Liver Model

Shock, Sarah A.; Meredith, Kenneth; Warner, Thomas F.; Sampson, Lisa A.; Wright, Andrew S.; Winter, Thomas C.; Mahvi, David M.; Fine, Jason P.; Lee, Fred T.

doi:10.1148/radiol.2311021342

Cited by 128 publications

(84 citation statements)

References 19 publications

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“…Compared with radiofrequency ablation, microwave ablation has the following advantages: continuous higher intratumoral temperatures, faster temperature rise rate, larger ablation volume, and shorter ablation time. 16,[23][24][25][26] In addition, due to the inherent nonelectrical properties of the electromagnetic waves, the microwave ablation device requires no external electrodes; thus, the risk of burning caused by external electrodes used in radiofrequency ablation is avoided. 16 Furthermore, radiofrequency ablation fails to adequately heat cystic tumors.…”

Section: Discussionmentioning

confidence: 99%

CT‐guided percutaneous microwave ablation of adrenal malignant carcinoma

Fan

Zhang

et al. 2011

Cancer

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BACKGROUND:Microwave ablation has recently been developed as a safe and effective treatment for a variety of tumors. The authors evaluated the safety and efficacy of computed tomography (CT)‐guided percutaneous microwave ablation of adrenal malignant tumors.METHODS:Nine patients between 41 and 83 years of age (average age, 54 years) with adrenal carcinoma (a total of 10 lesions) received CT‐guided percutaneous water‐cooled microwave ablation. The 9 cases included 1 primary adrenocortical carcinoma and 8 metastatic carcinomas (4 from lung cancer, 2 from hepatocellular carcinoma, 1 from intrahepatic cholangiocarcinoma, and 1 from left tibial osteosarcoma). Of the 8 metastatic cases, 7 were unilateral, and 1 was bilateral. All cases were pathologically confirmed by aspiration biopsy or postsurgical biopsy. The tumor diameters ranged from 2.1 cm to 6.1 cm (average, 3.8 cm). The average number of ablation sites was 1.5 sites (1‐3 sites), and the average accumulated ablation time was 7.7 minutes (4‐15 minutes). The procedures were performed using a cooled‐shaft antenna.RESULTS:The patients were followed for 3‐37 months, with an average of 11.3 months. Nine of 10 lesions were completely necrotized after first treatment. The other lesion was completely necrotized after 2 treatments. One of the patients experienced hypertensive crisis during treatment. No patient experienced recurrent tumor at the treated site, and this lack of recurrence indicated effective local control. All patients had progression of metastatic disease at extra‐adrenal sites.CONCLUSIONS:CT‐guided percutaneous water‐cooled microwave ablation is a minimally invasive and effective method for the treatment of adrenal carcinoma. Cancer 2011;. © 2011 American Cancer Society.

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Section: Discussionmentioning

confidence: 99%

CT‐guided percutaneous microwave ablation of adrenal malignant carcinoma

Fan

Zhang

et al. 2011

Cancer

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“…Numerous MWA antenna designs specifically targeted for MWA cardiac and hepatic applications have been reported [20][21][22][23][24], but they have not been used to treat breast cancer. These designs have been focused largely on thin, coaxial-based interstitial antennas [28], which are minimally invasive and capable of delivering a large amount of electromagnetic power. These antennas can usually be classified as one of three types (dipole, slot, or monopole) based on their physical features and radiation properties [29].…”

Section: Advanced Computer Modeling In Breast Cancer Hyperthermia Trementioning

confidence: 99%

High Temperature Hyperthermia in Breast Cancer Treatment

Rubio¹,

Salas²

2013

Hyperthermia

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“…The microwave technique is a relative new ablative treatment applicable to different neoplasm typologies, able to offer all radiofrequency benefits, moreover introducing other substantial advantages [18,19]. Several are the advantages offered by this technology: major volume of cellular necrosis, reduction on time of procedure, major temperatures achieved to target lesion, possibility to use multiple antenna simultaneously, efficacy in lesions with cystic components and/or lesions in adjacency to vascular structures with diameter >3mm and less intraprocedural pain [18,19,21,[63][64][65][66][67][68][69]. In RFA the tissue overheating direct activity is limited to a zone surrounding the active electrode for only a few millimetres, while the temperature rises in the remaining target lesion takes place only thought simple terminal conduction [18,19,68,69].…”

Section: Radiological Criteriamentioning

confidence: 99%

Patient selection - clinical and imaging criteria - for percutaneous lung malignancies ablation: a single centre experience and a literature review

Carrafiello¹,

Cardim²,

Piacentino³

et al. 2012

J Cancer Ther Res

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Purpose: To settle the most important clinical and radiological selection criteria for percutaneous ablation in patients with pulmonary tumours. Materials and Methods:A retrospective analysis of pulmonary thermal ablations performed in our Centre with special "focus" on clinical and radiological selection criteria for thermal ablation. The criteria employed in our Centre were then compared with those of 24 studies chosen from Literature that fit the issue and described their patient selection criteria for lung tumours thermal ablation.Results: From May 2008 until May 2011, thermal ablation was indicated as an alternative to conventional treatment for 32 patients (20 males e 12 females) with NSCLC in different stages, with medium age of 71 years old (range 46 -82). Inoperability was a condition established for all patients, for their clinical conditions, especially poor lung function, for the disease extension, as a controlled metastasis, and/or for their diameter and localization, as lesions in proximity to heart, large vessels and trachea. Conclusion:Thermal ablation is a rational alternative for conventional therapy in an adequately selected group of patients. A randomized controlled study with a control group submitted to conventional therapies to define with precision the candidable patients to thermal ablative therapy would be necessary.

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Microwave Ablation with Loop Antenna: In Vivo Porcine Liver Model

Abstract: Loop microwave antennas allow precise control and effective ablation of targeted tissue, particularly in the orthogonal configuration.

Cited by 128 publications

References 19 publications

CT‐guided percutaneous microwave ablation of adrenal malignant carcinoma

CT‐guided percutaneous microwave ablation of adrenal malignant carcinoma

High Temperature Hyperthermia in Breast Cancer Treatment

Patient selection - clinical and imaging criteria - for percutaneous lung malignancies ablation: a single centre experience and a literature review

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