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Microwave Ablation Therapy
Applicable Diseases:
It is widely used in the treatment of liver cancer, liver metastases, lung cancer, adrenal tumors, and other solid malignancies. The technique is particularly advantageous for hypervascular tumors larger than 3 cm in diameter or those located adjacent to major blood vessels. It is also commonly combined with vascular interventional therapies and immunotherapy to achieve enhanced therapeutic outcomes.
Technical Advantages:
Rapid heating with short treatment duration. Large ablation zone with minimal influence from blood flow. Multi-antenna synergy with strong conformability.
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Microwave Ablation Therapy

Microwave Ablation Therapy — An Ablation Technique for Rapid Tumor Destruction Using High-Frequency Electromagnetic Fields

Microwave ablation (MWA) uses a high-frequency electromagnetic field to induce rapid rotation and friction of water molecules, generating heat that raises the temperature of tumor tissue to levels sufficient to cause coagulative necrosis within minutes. Compared with radiofrequency ablation, microwave ablation achieves faster heating, creates larger ablation zones, and is less affected by tissue carbonization and the "heat-sink effect." These advantages enable more efficient destruction of hypervascular and relatively large tumors.

During the procedure, one or more microwave antennas are precisely inserted into the predetermined target location under ultrasound or CT guidance and connected to a microwave generator. Based on the preoperative treatment plan, the power output and ablation duration are carefully set to rapidly create a spherical ablation zone within a short time. The use of multiple antennas in combination allows conformal ablation, enabling effective coverage of irregularly shaped lesions.

Technical Features

· Rapid heating with short treatment duration: instantaneous high temperatures enable swift tumor destruction, shortening procedural time and reducing collateral thermal injury to surrounding tissues.

· Large ablation zone with minimal influence from blood flow: the stable high-temperature field overcomes the heat-sink effect caused by blood perfusion, reducing the risk of residual tumor at the margins—a particular advantage for larger tumors.

· Multi-antenna synergy with strong conformability: flexible antenna placement enables precise coverage of tumor margins, allowing effective ablation of larger or multifocal lesions in a single treatment session.

Indications

It is widely used in the treatment of liver cancer, liver metastases, lung cancer, adrenal tumors, and other solid malignancies. The technique is particularly advantageous for hypervascular tumors larger than 3 cm in diameter or those located adjacent to major blood vessels. It is also commonly combined with vascular interventional therapies and immunotherapy to achieve enhanced therapeutic outcomes.

MDT Team
Bringing together senior experts in China's precision minimally invasive cancer treatment field to provide you with world-leading minimally invasive cancer treatment services.
More Doctors
Liao Zhengyin
Liao Zhengyin
PhD, West China Hospital, Sichuan UniversityPostdoctoral Fellow, Chinese PLA General Hospitals in Beijing, ChinaSenior Visiting Scholar at Johns Hopkins Hospital, USAProfessor and Grade 1 Expert in the Oncology Center at West China Hospital, Sichuan University
Extremely adept at minimally invasive interventional therapies for tumors and treatment of cancer pain, proficient in radioactive seed implantation, ablation, and vascular intervention, with a focus on liver cancer, lung cancer, pancreatic cancer, and bone metastases, and particularly skilled in radioactive seed implantation for refractory cancer pain.
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Xiao Yueyong
Xiao Yueyong
Doctor of Medicine, Professor, and Doctoral Supervisor Chief Physician at Department of Radiological Diagnosis in the No. 1 Medical Center at Chinese PLA General Hospital
Doctor Xiao has an expertise in the individualised minimally-invasive ablation of solid tumours including liver cancer, lung cancer, and pancreatic cancer under the guidance of CT/MRI. Doctor Xiao is proficient in radiofrequency, microwave, cryoablation, and nanoknife ablation technologies, and operates more than thousands of operations annually. Especially, Dr. Xiao has abundant experiences in the precise treatment of the tumours in special anatomical sites such as hepatic hilar region, retroperitoneum, and mediastinal lymph nodes. Further, Dr. Xiao is rather good at combining chemical ablation and seed implantation therapies.
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Zhang Jinshan
Zhang Jinshan
Chief PhysicianProfessorDoctoral Supervisor
He is very involved in treating tumors and blood vessel diseases, focusing on less invasive procedures for issues like liver cancer, cirrhotic portal hypertension, Budd–Chiari syndrome, narrowing and blockage of peripheral blood vessels, both benign and malignant tumors, and benign prostatic hyperplasia. He was among the first in China to perform advanced techniques such as TIPSS and B-ORTO, filling multiple domestic gaps in the field. He also pioneered temporary hepatic vein occlusion combined with hepatic arterial embolization for the treatment of liver cancer, led the development of standardized treatment protocols for liver cancer, and has made significant contributions to the advancement of interventional medicine in China.
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Hu Xiaokun
Hu Xiaokun
Chief PhysicianProfessorDoctoral SupervisorPostdoctoral mentorDeputy Director of the Interventional Medicine Center of The Affiliated Hospital of Qingdao UniversityDirector of the Qingdao Tumor Interventional Minimally Invasive Technology Innovation Center.Visiting Scholar at Harvard Medical School, USA
Specializes in the treatment of solid tumors, including lung cancer, liver cancer, glioma, and pancreatic cancer, with a particular focus on radioactive iodine-125 seed implantation combined with multimodal ablation techniques such as microwave ablation, radiofrequency ablation, cryoablation, and irreversible electroporation (NanoKnife). Also possesses extensive experience in the management of non-neoplastic diseases, particularly vertebroplasty and minimally invasive treatments for intervertebral disc disorders.
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Patient stories
At UNI-ASIA Cancer Hospital, every journey in search of care is marked by courage and hope, and every story bears witness to doctors and patients working together to overcome disease.
More Cases
Patient Lao Chen
Bladder Cancer
China
Patient Lao Chen
A Chinese patient diagnosed with invasive urothelial carcinoma of the bladder experienced repeated postoperative recurrence and multiple metastases. After undergoing several open surgeries and chemotherapy regimens, the patient's condition became physically intolerable. At the end of 2024, the patient was transferred to Chengdu Uni-Asia Hospital, where Professor Liao Zhengyin's team performed CT combined with ultrasound-guided cryoablation of the abdominal wall metastatic lesion. The patient was able to get out of bed and move around the day after the procedure, was discharged smoothly after only five days of hospitalization, and regained a peaceful life.
Ms. Nguyen
Lung Cancer
Vietnam
Ms. Nguyen
A Vietnamese patient, 68 years old, was diagnosed with small-cell neuroendocrine carcinoma of the right lung with metastases in both lungs. She had previously undergone partial resection of the right lung and multiple rounds of chemoradiotherapy. After recurrence and metastasis left her without the option of surgery, she was referred to Chengdu Uni-Asia Hospital by an international referral center. Professor Liao Zhengyin's team performed minimally invasive interventional chemoembolization for her. She was able to get out of bed and move around the day after the procedure; her cough and shortness of breath improved significantly, and she was discharged smoothly a few days later to return home, regaining a normal life.
Catia
Liver Cancer
Philippines
Catia
A 42-year-old Filipino patient was diagnosed with primary liver cancer with intrahepatic metastases and a tumor thrombus in the inferior vena cava (stage IV), and had lost the opportunity for surgical resection. He was referred to Chengdu Uni-Asia Hospital through an international referral center. Professor Luo Xiaoping’s team first performed biliary drainage to relieve jaundice, and after his condition stabilized, carried out hepatic arterial infusion chemotherapy and embolization to control the tumor. After the procedure, his abdominal distension was significantly relieved; he was able to get out of bed the next day and was successfully discharged to return home.
Patient Akun
Liver Cancer
China
Patient Akun
A Chinese patient was diagnosed with liver cancer accompanied by metastasis to the C3 cervical vertebra and a pathological fracture. On admission, he had severe neck pain and markedly limited movement. The Uni-Asia team first performed cervical vertebroplasty to stabilize the vertebra and relieve pain, and on the following day performed transarterial chemoembolization of the hepatic artery to control the intrahepatic tumor. After surgery, his pain was significantly relieved; he was able to get out of his wheelchair and walk, and he was in good spirits at discharge.

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