Gamma knife: Radiosurgery Gamma Knife for Arteriovenous Malformation (AVM)

Radiosurgery with Gamma Knife is the most advanced way to treat arteriovenous malformations (AVM). The method implies irradiation of lesions with high doses of radiation from a variety of angles. After the procedure, the abnormal shunts are occluded gradually, resulting in restoration of the normal blood flow in the brain.


As the main method of therapy, Gamma Knife is indicated for AVM less than 3 cm. The treatment effectiveness in such cases is 95%. Complete occlusion of defective blood vessels is developed within 1 to 3 years after the intervention.

For large formations, the Gamma Knife is used in combination with surgery or as the sole method of therapy, if AVMs are located in awkward surgical areas. In the latter case, the vascular tangle is irradiated in parts for several years.


Radiosurgery is performed in a single day. Under local anesthesia, a special frame with a three-dimensional coordinate system is installed on the patient's head. Next, CT and/or MRI are conducted to determine the precise location of malformations. The resulting data are entered into Gamma Knife software, which develops an individual treatment plan.

The patient is placed on the table, and his head is fixed so that the radiation affected the pathological focus precisely. After switching on of the installation, the selected area is exposed to 200 thin beams of gamma rays from different sides. Each beam is harmless to healthy tissue, however, converging in the area of malformation, they create a dose of radiation highly damaging to cell.

Treatment duration ranges from 20 to 60 minutes, depending on the formation size. All this time, the radiation oncologist monitors the patient’s condition continuously. The bilateral audio communication is maintained.

Exposure to the Gamma Knife is painless, so it does not require anesthesia. After treatment completion, the frame is removed from the patient's head, and the dressing is applied. The patient can go home the same day or the next day.

In the future, the intervention effectiveness is monitored by regular examinations using CT or MRI. In the event of insufficient expression of the outcome, the procedure can be repeated.

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Gamma Knife and Radiotherapy Center Krefeld

10/10 from 2 Votes
location_onGermany, Krefeld

Gamma Knife and Radiotherapy Center

Radiosurgery (Gamma Knife) of arteriovenous malformation (AVM) #273586

The Gamma Knife and Radiotherapy Center Krefeld specializes in the stereotactic radiosurgical treatment of benign and malignant tumors. The peculiarity of this clinic lies in the innovative technologies of targeted radiotherapy, thanks to which healthy tissues can be completely removed from the radiation zone.

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Gamma Knife and Radiotherapy Center Hannover

10/10 from 23 Votes
location_onGermany, Hannover

Gamma Knife and Radiotherapy Center

Radiosurgery (Gamma Knife) of arteriovenous malformation (AVM) #251499

The Gamma Knife and Radiotherapy Center Hannover is the first clinic for radiotherapy and radiosurgery in Germany that offers the full range of radiotherapy: from all methods of imaging diagnostics up to intensity-modulated, imaging-guided radiation therapy with the use of a modern linear accelerator.


University Hospital RWTH Aachen

8.9/10 from 41 Votes
location_onGermany, Aachen

Gamma Knife Center

Radiosurgery (Gamma Knife) of arteriovenous malformation (AVM) #273567

Gamma Knife has been installed since July 1998 in the University Hospital Aachen and it is operated in cooperation with the Department of Neurosurgery and the Department of Radiotherapy. Since then, around 1,800 patients with various diseases (statistics of 01.


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