Work in progress: intraoperative ultrasonography of the spine.

Abstract
The application of intraoperative real-time ultrasound sector scanning in 2 patients who had spinal tumors is demonstrated. The scans were obtained through a 4- to 5-cm deep, saline-filled operative field. Ultrasonography imaged the tumors, the relationships of the lesions to the spinal cords and the normal internal structures of the cords themselves. The technique could prove useful in certain forms of spinal surgery.

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