Performing surgery on the side of the machine while performing "navigation" in real time.

A few days ago, Zhejiang Province's first intraoperative MRI settled in the Second Hospital of Zhejiang Medical University, which is also the world's highest 3.0T magnetic resonance. The settlement of this magnetic resonance marks the first time that the precision surgery of the Second Hospital of Zhejiang Medical has entered a new era of navigation.

According to reports, this magnetic resonance is directly connected to the operating room, and the patient can perform necessary imaging examinations in a timely manner while performing surgery. Sun Jianzhong, deputy director of the Department of Radiology, said that intraoperative magnetic resonance is mainly used in neurosurgery, including glioma, pituitary tumor, arteriovenous malformation, cavernous hemangioma and other craniocerebral diseases. Excision provides real-time imaging information.

Professor Zhang Jianmin, director of the Department of Neurosurgery at the Second Hospital of Zhejiang Medical University, said that in brain surgery, glioma is the most common malignant tumor in the brain. It grows invasively like a tree root, and it is sometimes difficult to confirm the boundary during surgery. When performing intracranial tumor resection, especially for tumors close to the functional area, it is very important to grasp the size of the resection. If it is cut, it may cause functional effects, such as not being able to speak, walk or read normally, or even more serious consequences. If it is cut, it will affect the effect of postoperative radiotherapy and chemotherapy, and it will easily cause recurrence. With intraoperative magnetic resonance imaging, this problem can be solved very well. You can always know how many tumors have been removed, whether there are residual tumors, and whether you need to further clean up "residual molecules" to achieve maximum safe resection.

Intraoperative magnetic resonance with a precise navigation system, as well as an advanced frameless stereotactic system, for example, is like a real-time positioning radar.

Ordinary surgical navigation system, like the GPS navigation we used when driving, can also guide the direction of surgery and the scope of resection. However, since the information in the navigation system needs to be stored in advance, the information is derived from the pre-operative examination. In the operation, due to the opening of the skull, the loss of cerebrospinal fluid and the pulling, etc., the real-time part of a certain lesion may occur in the operation. "Drift", and the situation at the time of preoperative examination, "deviation", and even caused "misleading."

“It’s like the GPS map is outdated, and the navigation system is not so accurate.” Professor Zhang Jianmin said that the intraoperative magnetic resonance is real-time and can provide updated maps at any time, so that the navigation device can guide the surgical procedure very accurately. . This allows many previously unreachable tumors to be accurately located and explored, so that precise molecular testing can be used to find the treatment that best suits the individual patient.