A frameless, armless navigational system for computer-assisted neurosurgery

Kato, Aitaro; Yoshimine, Toshiki; Hayakawa, Tõru; Tomita, Yoshiaki; Ikeda, Takuya; Mitomo, M; Harada, K.; Mogami, Heitaro

doi:10.3171/jns.1991.74.5.0845

Cited by 286 publications

(82 citation statements)

References 8 publications

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“…7,15,19,23) Electromagnetic navigation systems were created in 1991, with a computer-assisted neurosurgical navigational system using a magnetic source and sensor. 12) Since then, many in vivo and in vitro uses have been reported, and registration error as calculated by the various systems currently varies between 0.7 mm and 4.4 mm, showing no difference in accuracy compared with current optical navigation systems. 3,20) The results of our experiments showed that RMS error in all measurements was 1.2 mm and standard deviation was 0.5 mm.…”

Section: Discussionmentioning

confidence: 99%

Newly Developed Electromagnetic Tracked Flexible Neuroendoscope -Technical Note-

Atsumi

Matsumae

Hirayama

et al. 2011

Neurol. Med. Chir.(Tokyo)

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Flexible endoscopes can be used in areas that are difficult to approach using rigid endoscopes. No current real-time navigation systems identify the tip of the flexible neuroendoscope. We have developed a flexible neuroendoscope mounted with a magnetic field sensor tip position-tracking system and evaluated the accuracy of this magnetic field neuronavigation system. Based on an existing flexible neuroendoscope, we created a prototype with a built-in magnetic field sensor in the tip. A magnetic field measurement device provides a magnetic field with a working volume of 500 × 500 × 500 mm in front of the device. The device consists of a flat field generator that creates a pulsed magnetic field, connected to a system control unit that interfaces with a computer. The magnetic field sensor (1.8 × 9 mm) was sealed in a site 0.9 mm from the endoscope tip. Accuracy of neuroendoscope tracking was measured using a three-dimensional coordinate-measuring machine that measures the position of objects along 3 axes, with an error of about 3 mm. The accuracy for this neuroendoscope with built-in magnetic field sensor was root mean square error of 1.2 mm and standard deviation of 0.5 mm. This magnetic field neuronavigation system enables real-time tracking of the tip of the flexible neuroendoscope. Application of this flexible neuroendoscope to intraoperative navigation appears promising, and may provide new advantages for minimally invasive endoscopic surgery.

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Section: Discussionmentioning

confidence: 99%

Newly Developed Electromagnetic Tracked Flexible Neuroendoscope -Technical Note-

Atsumi

Matsumae

Hirayama

et al. 2011

Neurol. Med. Chir.(Tokyo)

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“…Additionally, electromagnetic [54] and optical [56], [122] tracking systems, became commercially available in the early nineties. These systems usually provide sub millimeter tracking accuracy based on the detection of small navigation aids, referred to as sensors, fiducials, or markers.…”

Section: A History Of Image Guided Surgerymentioning

confidence: 99%

Navigation in Endoscopic Soft Tissue Surgery: Perspectives and Limitations

Baumhauer

Feuerstein

Meinzer

et al. 2008

Journal of Endourology

163

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Abstract-Despite rapid developments in the research areas medical imaging, medical image processing and robotics, the use of computer assistance in surgical routine is still limited to diagnostics, surgical planning, and interventions on mostly rigid structures. In order to establish a computer aided workflow from diagnosis to surgical treatment and follow-up, several proposals for computer assisted soft tissue interventions have been made in recent years. By means of different pre-and intraoperative information sources, like surgical plannings, intraoperative imaging, and tracking devices, surgical navigation systems aim at supporting surgeons in localizing anatomical targets, observing critical structures, and sparing healthy tissue. Current research in particular addresses the problem of organ shift and tissue deformation, and obstacles in communication between navigation system and surgeon.In this article, we review computer assisted navigation systems for soft tissue surgery. We concentrate on approaches which can be applied in endoscopic thoracic and abdominal surgery, as endoscopic surgery has special needs for image guidance due to limitations in perception. Furthermore, this article provides the reader with new trends and technologies in the area of computer assisted surgery. Finally, a balancing of key challenges and possible benefits of endoscopic navigation refines the perspectives of this increasingly important discipline of computer aided medical procedures.

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“…The different MR modalities that may be used for assessment include T 1 -and, T 2 -weighted images, MR angiograms, and functional MR imaging: all of these help to complete the initial diagnosis and aid planning of the surgical approach and subsequent patient management. The increased use of three-dimensional (3-D) image reconstruction methods [1,15,17,18,22,23,27] and surgical navigators [2,3,8,12,16,26,[30][31][32] has resulted in a substantial changes in the practice of neurosurgery. We have developed a protocol for the use of 3-D reconstructions that combines these modalities into one comprehensive model, which is then used for surgical planning and intraoperative navigation.…”

Section: Abstract * Low-grade Glioma * Three-dimensional Reconstructmentioning

confidence: 99%

Three-dimensional image reconstruction for low-grade glioma surgery

Chabrerie

Özlen

Nakajima³

et al. 1998

FOC

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Three-dimensional image reconstruction for preoperative surgical planning and intraoperative navigation for the resection of low-grade gliomas was performed in 20 patients. Thirteen of these surgeries were performed while the patient received a local anesthetic to allow for cortical mapping. Ninety percent of the patients were functionally intact postoperatively. The authors propose that the combination of the three-dimensional image reconstruction and surgical navigation, in conjunction with intraoperative cortical mapping, provides an additional means for surgeons to improve the safety and precision of the procedures.

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A frameless, armless navigational system for computer-assisted neurosurgery

Cited by 286 publications

References 8 publications

Newly Developed Electromagnetic Tracked Flexible Neuroendoscope -Technical Note-

Newly Developed Electromagnetic Tracked Flexible Neuroendoscope -Technical Note-

Navigation in Endoscopic Soft Tissue Surgery: Perspectives and Limitations

Three-dimensional image reconstruction for low-grade glioma surgery

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