抄録
We tried to estimate the usefulness of intraoperative ultrasonography in neurosurgical field.
The subjects were 20 patients with intracranial lesions and 9 patients with spinal lesions. The intraoperative ultrasound studies were performed after exposing the dura with a real-time ultrasound sector scanner and a 7 MHz probe (SSA-260A: Toshiba Medical Co, Ltd.) . Ultrasonography showed brain tumors as high intensity mass lesions. Major intracranial vessels were visualized well using color-coded sonography. Brain edema estimated by CT scan and MRI was not clearly identified. In Patients with spinal lesions, localizaton of lesions were identified clearly and operations were done with minimal myelotomy. The B-mode imaging is not so clear as CT scan and MRI. However, it is available intraoperatively and shows real-time localizations of vessels and intracranial or spinal lesions. This intraoperative sonography is beneficial for safe surgery of intracranial and spinal lesions.
