Ultrasound-guided percutaneous microwave ablation of splenic metastasis: Report of four cases and literature review

Yu, Jie; Liang, Ping; Yu, Xiaoling; Wang, Yang; Gao, Yongyan

doi:10.3109/02656736.2011.563768

Cited by 19 publications

(12 citation statements)

References 21 publications

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“…The possibility to study organs perfusion in real time opens interesting potential clinical applications, already explored in human medicine. These include not only a better detection and characterization of focal parenchymal lesions, but also the evaluation of diffuse organs changes, intravascular diseases, and pre‐ and posttreatment perfusion during ablation procedures …”

Section: Introductionmentioning

confidence: 99%

Effect of Sedation on Contrast‐enhanced Ultrasonography of the Spleen in Healthy Dogs

Rossi

Fina

Stock

et al. 2016

Vet Radiology Ultrasound

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Contrast-enhanced ultrasound of the spleen enables the dynamic assessment of the perfusion of this organ, however, both subjective and quantitative evaluation can be strongly influenced by sedative agent administration. The purpose of this prospective, experimental study was to test effects of two sedative agents on splenic perfusion during contrast-enhanced ultrasound of the spleen in a sample of healthy dogs. Contrast-enhanced ultrasound of the spleen was repeated in six healthy Beagles following a cross-over study design comparing three protocols: awake, butorphanol 0.2 mg/Kg intramuscular (IM), and dexmedetomidine 500 μg/m(2) IM. After intravenous injection of a phospholipid stabilized sulfur hexafluoride microbubble solution (SonoVue®, Bracco Imaging, Milano, Italy), the enhancement intensity and perfusion pattern of the splenic parenchyma were assessed and perfusion parameters were calculated. Normal spleen was slightly heterogeneous in the early phase, but the parenchyma was homogeneous at a later phase. Sedation with butorphanol did not modify perfusion of the spleen. Dexmedetomidine significantly reduced splenic enhancement, providing diffuse parenchymal hypoechogenicity during the entire examination. Measured parameters were significantly modified, with increased arrival time (AT; (< 0.0001) and time to peak (TTP; P < 0.0001), and decreased peak intensity (PI; P = 0.0108), wash-in (P = 0.0014), and area under the curve (AUC; P = 0.0421). Findings supported the use of butorphanol and contraindicated the use of dexmedetomidine as sedatives for splenic contrast ultrasound procedures in dogs. Short-term and diffuse heterogeneity of the spleen in the early venous phase was determined to be a normal finding.

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Section: Introductionmentioning

confidence: 99%

Effect of Sedation on Contrast‐enhanced Ultrasonography of the Spleen in Healthy Dogs

Rossi

Fina

Stock

et al. 2016

Vet Radiology Ultrasound

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“…Thus, data on the use of ablation for splenic tumours are rather limited. To date, only two papers have reported on the use of MWA for splenic tumours, and both were performed by Liang's team [7,80]. In their latest study, they evaluated the feasibility and effects of MWA in 7 patients with 2 benign splenic nodules (diameter range, 5.9-6.3 cm) and 6 malignant nodules (diameter range, 1.3-2.9 cm).…”

Section: Mwa In the Spleenmentioning

confidence: 99%

“…The microwave technique was first adopted for tumour ablation by Saitsu et al [2] from Japan to treat small liver cancers and has achieved wider application over the past two decades, particularly in China. Although radiofrequency ablation (RFA) remains the most widely used ablation technique worldwide, with the improvement of microwave ablation (MWA) equipment and treatment strategies, now MWA has expanded its clinical applications in many institutions in Far East countries and parts of Western countries, from small hepatocellular carcinomas (HCC) to large liver cancers greater than 5 cm and multiple other solid tumours including those in the kidney, adrenal, spleen, thyroid, lung, breast, abdominal wall and uterus [3][4][5][6][7][8][9][10]. The MWA technique has developed rapidly over the past decade in China and has been used clinically in more than 500 hospitals in China.…”

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confidence: 99%

Status and advancement of microwave ablation in China

Liang

2016

International Journal of Hyperthermia

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Tumour ablation is defined as the direct application of chemical or thermal therapy to eradicate or substantially destroy a tumour. Currently, minimally invasive ablation techniques are available for the local destruction of focal tumours in multiple organ sites. Microwave ablation (MWA) is premised on the biological response of solid tumours to tissue hyperthermia, and it is a relatively low-risk procedure. Due to several advantages of MWA, including higher thermal efficiency, higher capability for coagulating blood vessels, faster ablation time and the simultaneous application of multiple antennae, MWA could be a promising minimally invasive ablation technique for the treatment of solid tumours. Therefore, the use of MWA has developed rapidly in China during the last decade. Many successful studies have been performed, and widespread use has been achieved for multiple types of tumours in China, especially for liver cancer. This review will describe the state-of-the-art of MWA in China, including the development of MWA equipment and its application in the treatment of multiple types of tumours.

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“…Its outer diameter is Brought to you by | New York University Bobst Library Technical Services Authenticated Download Date | 6/21/15 10:42 PM 1.9 mm, the total length is 150 mm, the length of the needle head is 11 mm, and the microwave emission gap is 1.5 mm. A needle thermometer was also used [17].…”

Section: Microwave Ablation Experimentsmentioning

confidence: 99%

Study on the effective ablation volume of microwave ablation of porcine livers

Qian

Ding

et al. 2013

Photonics &Amp; Lasers in Medicine

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This paper reports on an effective ablation volume model for microwave ablation of porcine liver. Firstly, in order to obtain the temperature field distribution, a theoretical simulation model of the microwave ablation of porcine liver was developed by solving Pennes bioheat transfer equation using the COMSOL Multiphysics software. Then the effective ablation volume and the effective ablation volume model were obtained using the 1stOpt fitting software by 7D-Soft High Technology Inc. (China). Finally, microwave ablation experiments were carried out using porcine liver to verify the accuracy and effectiveness of the model. The results show that according to the ablation volume model, one can determine the scope of the effective ablation under varying conditions of microwave power and duration. This provides an important basis for the preoperative planning system of microwave ablation. Zusammenfassung: Die vorliegende Arbeit berichtet über ein effektives Ablationsvolumen-Modell für die Mi krowellenablation von Schweineleber. Zuerst wurde ein theoretisches Simulationsmodell durch Lösen der BioWärmetransfer-Gleichung von Pennes unter Verwendung der COMSOL Multiphysics Software entwickelt, um die Temperatur-Feldverteilung in Schweineleber zu ermitteln. Danach wurde das effektive Ablationsvolumen durch ein Ablationsvolumen-Modell unter Verwendung der 1stOpt Fitting-Software (7D-Soft High Technology Inc., China) bestimmt. Schließlich wurden Mikrowellenablations-Experimente mit Schweineleber durchgeführt, um die Genauigkeit und Effektivität des Modells zu über-prüfen. Die Ergebnisse zeigen, dass unter Zugrundelegung des Ablationsvolumen-Modells der Umfang der effektiven Ablation unter variierenden Bedingungen von Mikrowellenleistung und Applikationsdauer bestimmt werden kann. Dies stellt eine wichtige Grundlage für ein präoperatives Planungssystem der Mikrowellenablation dar.

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Ultrasound-guided percutaneous microwave ablation of splenic metastasis: Report of four cases and literature review

Abstract: Ultrasound-guided percutaneous MW ablation appears to be a safe and effective minimally invasive technique for management of small splenic metastasis in selected patients.

Cited by 19 publications

References 21 publications

Effect of Sedation on Contrast‐enhanced Ultrasonography of the Spleen in Healthy Dogs

Effect of Sedation on Contrast‐enhanced Ultrasonography of the Spleen in Healthy Dogs

Status and advancement of microwave ablation in China

Study on the effective ablation volume of microwave ablation of porcine livers

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