Neuronavigation by Intraoperative Three-dimensional Ultrasound: Initial Experience during Brain Tumor Resection

Abstract

Intraoperative 3-D ultrasound seems to provide a time- and cost-effective way to update high-quality 3-D maps used in neuronavigation.

Evaluation of Intraoperative Brain Shift Using an Ultrasound-Linked Navigation System for Brain Tumor Surgery

“…5,15,26) However, these imaging techniques are limited by factors such as manpower, cost, and restricted surgical access. 2,7,24) US scanners have been used for intraoperative imaging for 20 years. However, US has not entered common use due to the limited image quality and user-dependent results.…”

“…Recently, 3D US, which provides improved image quality, has been used in intracranial surgery, 9) and 3D USlinked navigation systems have been developed and applied in intracranial surgery. 9,24) Single rack navigation systems with an integrated US scanner have also been reported, 9,22) although our navigation system used an external US scanner connected to the navigation system.…”

“…3D US images may solve the problems with the image quality and orientation experienced with 2D US. 11,24) However, we think that the 2D US images in this US-linked navigation system were useful for evaluation of brain shift and extent of tumor resection.…”

Computer-assisted 3D ultrasound-guided neurosurgery: technological contributions, including multimodal registration and advanced display, demonstrating future perspectives

“…Ultrasound has also been found efficient as a 'stand-alone' imaging modality for the guidance of endoscopes (34,35) and the evacuation of haematomas (36). Other research groups have also found ultrasound useful for guidance and resection control, alone or in combination with preoperative images in neuronavigation (37)(38)(39)(40)(41), but few groups have explored the potential of this imaging modality for updating preoperative images, as demonstrated in the present work. The present paper demonstrates algorithms that update preoperative image data for accurate display of this important data in the navigation system throughout surgery, when anatomy shifts and changes.…”

The Use of Neuronavigation with Vasular Microdoppler in Transsphenoidal Pituitary Surgery

“…Furthermore during tumour resection, neurovascular structures shiftis occurred. Neuronavigation integrated with micro-doppler supply real time images and resolve the brain shift problem [24]- [27].…”