What Is the Cyberknife?

Cyber knife, also known as "stereotactic radiosurgery platform", also known as "network knife" or "computer knife", is the world's latest type of whole body stereotactic radiosurgery treatment equipment. It can treat tumors in all parts of the body. It only needs 3 to 5 irradiations to kill the tumor tissue. It is the only whole body radiation that combines the advantages of no wound, no pain, no bleeding, no anesthesia, short recovery period and other advantages. In the form of surgery, patients can go home after surgery.

Radio knife

Cyber knife, also known as "stereotactic radiosurgery platform", also known as "network knife" or "computer knife", is the world's latest type of whole body stereotactic radiosurgery

Accuray and radio knife introduction

Accuray started in 1987 and is now

Warren Buffett receives radio knife treatment

The radio knife was published by Forbes as a pioneer of high-tech medical products, and was

Patient-focused, clinical-driven

Clinical application

The Radio Knife has been approved by the Food and Drug Administration (FDA) for treating patients in 2001 and can be used to treat radiation-applicable tumors anywhere in the body. Since then, CyberKnife users have begun research and development and continue to develop treatments for the brain, spine, lung, liver,

Simultaneous respiratory tracking tumor

In some patients, the tumor will move with the breathing movement. At this time, the radio knife can use the CCD camera to track the mark while tracking the system, predict and track the tumor trajectory at different points in time, and then instruct the robot to follow the tumor. Simultaneous movements ensure that the accelerator is always aligned with the tumor during irradiation, minimizing damage to normal tissues.

Flexible robot arm

In shape, the biggest feature of the radio knife is that it has a precise and flexible robot arm. This one has 6 freedoms

Radio knife

The degree of precision robot arm provides the best space expansion and mobility for treatment. There can be up to 1200 beams with different orientations, so that the irradiation dose is placed on the lesions around the body, and the irradiation can be achieved from any angle, which greatly reduces the damage to the normal tissues and important organs around the tumor, and effectively reduces The occurrence of radiation complications.

Multiple tumors treated at the same time

The radio knife has thousands of incident beams, which can arrange the "surgery" of multiple tumors in the same treatment plan, and simultaneously treat different non-adjacent tumors in different parts. Of course, it can also treat tumors with irregular positions and irregularly shaped tumors, and early tumors smaller than 6 cm can be completely eliminated.

The flexible and accurate treatment characteristics of the radio knife make it possible to treat intracranial injuries that are difficult to access using conventional equipment, such as meningiomas, nasopharyngeal carcinoma, etc. Therefore, the radio knife can treat tumors of most organs and tissues in the whole body. In addition, because of the non-invasive, no bleeding, no pain, and no need for anesthesia during the treatment of the radio knife, there is no need for anesthesia recovery time after the "surgery" is completed. The outpatient treatment method greatly facilitates the patient. Compared with ordinary surgery, the recovery period of patients after treatment is also significantly shortened.

The many advantages of the radio knife make it one of the world's most advanced radiation treatment systems for neurological tumors and lesions in the world. It is the only system that uses the human skeleton structure as a target positioning reference point, and it is also the only one that can cure spinal and spinal cord injuries. Automated stereotactic radiotherapy system.

Common questions

Why is there no pain in the radio knife treatment?

Radio knife

In the treatment of intracranial and near spine tumors, the radio knife uses image-guided technology and uses bone markers on the skull or spine to accurately locate the patient's position and completely achieve non-invasive treatment. For body tumors, such as those whose lungs are greatly affected by respiratory movements, use respiratory tracking technology to kill tumor cells in real time and accurately.

What kind of patients is the radio knife treatment suitable for?

Tumors grow near tissues that are sensitive to radiation; tumors with complex shapes; tumors that have been irradiated with other radiotherapy; tumors that recur after surgery; tumors that are difficult to remove by surgery; patients who are too weak to undergo surgery; have other diseases Patients who cannot be treated surgically; patients who refuse surgery.

What are the procedures of radio knife treatment?

1. Schedule an appointment (remote consultation is possible).

2. Arrange an expert consultation and notify the patient and relatives to the hospital for treatment if the radio knife is appropriate.

3. Outpatient treatment: The patient is treated in an outpatient clinic, and the specialist decides to use the radio knife treatment according to the tumor size, location, morphology, and patient status;

4. Preparation: The patient is fixed to the radiotherapy department (it takes 10-30 minutes);

5. Acquire the image: CT positioning of the radiotherapy staff for the patient (20 minutes);

6. Develop a treatment plan: a radiotherapy physicist develops a treatment plan (1-2 days);

7. Radiation therapy: Therapist performs surgical treatment according to the plan (1-5 days, without hospitalization).

Radio Knife Indication

1. Extracranial tumors: primary liver cancer and multiple intrahepatic metastases caused by it, portal vein tumor thrombus, inferior vena cava tumor thrombus, abdominal lymph node metastasis, single or double lung metastases, bone metastases, etc., tumors in various parts of the body Caused by metastatic liver cancer. Biliary tumor, head and neck cancer, primary and metastatic lung cancer, pancreatic cancer, kidney cancer, prostate cancer, gynecological tumor, primary and metastatic tumor of bone, soft tissue sarcoma.

2. Intracranial tumors: malignant gliomas, astrocytomas, glioblastomas, oligodendroglioma, hemangioblastomas, metastases, and other malignancies. Benignmeningiomas, auditory neuromas, nerve sheath tumors, pituitary tumors, craniopharyngiomas, retinomas, chordomas, and other benign tumors.

3. Spinal tumors: cervical, thoracic, lumbar, tail and intramedullary tumors.

4, vascular malformations: arteriovenous malformations, cavernous hemangioma

6. Cancer pain: 5 Bone pain caused by tumor invasion of vertebral body, ribs, etc., pain caused by metastasis of retroperitoneal lymph nodes.

The global situation of radio knife treatment

The treatment effect is remarkable. Today, more than 200 hospitals worldwide have such expensive treatment equipment, two-thirds of which are American hospitals. In January 2008, the radio knife was published by Forbes as a pioneer of high-tech medical products; it was named "2008 Science and Technology Pioneer" by the World Economic Forum.

The conventional radiotherapy and the radio knife use the same radioactive source, -6MV high-energy X-ray, and therefore belong to the same radiotherapy. However, due to the unique design of the radio knife, such as a flexible robotic arm, a delicate accelerator, a precise 6-dimensional treatment table, real-time image-guided positioning and image tracking, and synchronized breathing tracking, the characteristics of the radio knife exceed conventional accelerators Reached the height of radiosurgery.

Difference between conventional radiotherapy and radio knife treatment

	Conventional radiotherapy	Radio knife treatment
Number of exposures	35 times	3-5 times
Healing period	7 weeks	3-5 days
Single dose	1.8-2Gy	20-80Gy
Dose distribution	excellent	Special
Treatment accuracy	Several millimeters	Submm
Treatment positioning	no	Have
Treatment tracking	no	Near real time
Tumor movement	Range compensation	Breath tracking
Organization protection	difference	excellent
Skin reaction	Medium-heavy	light
Recovery period	long	short
Kill cancer cells	50%	99.999%
Vascular response	weight	light

Comparison of conventional surgery and radio knife precision radiotherapy

project name	Conventional surgery	Radio knife treatment
Surgery itself	Traumatic	Non-invasive
operation time	long	short
anesthesia	need	No need
Bleeding	Have	No
Tissue removal	need	No need
Bacterial infections	possible	impossible
Outpatient treatment	No	can
Recovery period	long	short
pain	Have	no
Take care of	need	No need
Life impact	meeting	will not