Three-dimensional digitizer (neuronavigator): New equipment for computed tomography-guided stereotaxic surgery

Watanabe, Eiju; Watanabe, Takashi; Manaka, Shinya; Mayanagi, Yoshiaki; Takakura, Kintomo

doi:10.1016/0090-3019(87)90152-2

Cited by 430 publications

(137 citation statements)

References 6 publications

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“…25) Reported benefits include improved surgical approach, reduced morbidity, shorter hospital stay, reduced hospital costs, and reduced requirements for postoperative analgesia. 1,20) The accuracy of navigation systems progressively decreases during surgical procedures, due to various factors described by the term``brain shift.''…”

Section: Discussion I Problems Of Conventional Navigation Systemsmentioning

confidence: 99%

“…14,18,21,25) However, the accuracy of navigation systems based on preoperative imaging decreases with the progress of surgical manipulation due to a phenomenon called``brain shift,'' which is caused by various factors, including the effect of gravity on the brain, escape of cerebrospinal fluid, brain swelling, and surgical maneuvers. 7,8) Intraoperative imaging systems using computed tomography (CT) 5) or magnetic resonance (MR) imaging 15) have been introduced to counter the effects of brain shift.…”

Section: Introductionmentioning

confidence: 99%

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

Ohue

Kumon

Nagato

et al. 2010

Neurol. Med. Chir.(Tokyo)

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Image-guided neurosurgery using navigation systems is an essential tool to increase accuracy in brain tumor surgery. However, brain shift during surgery has remained problematic. The present study evaluated the utility of a new ultrasound (US)-linked navigation system for brain tumor surgery in 64 patients with intracranial tumors. The navigation system consisted of a StealthStation TM navigation system, a SonoNav TM system, and a standard US scanner. This system determines the orientation of the US images and reformats the images from preoperative computed tomography (CT) or magnetic resonance (MR) imaging to match the US images. The system was used intraoperatively to measure brain shift several times, using the results to guide tumor resection. US-linked navigation provided information regarding brain shift, and extent of tumor resection during surgery. Evaluation of brain shift was easily achieved in all patients, without using intraoperative CT or MR imaging. Accurate information regarding the true anatomical configuration of the patient could be obtained in all phases of the operation. Magnitude of brain shift increased progressively from pre-to post-resection and depended on the type of cranial structure. Integration of the US scanner with the navigation system allowed comparisons between the intraoperative US and preoperative images, thus improving interpretation of US images. The system also improved the rate of tumor resection by facilitating the detection of remnant tumor tissue. This US-linked navigation system provides information on brain shift, and improves the accuracy and utility of image-guided surgery.

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Section: Discussion I Problems Of Conventional Navigation Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Ohue

Kumon

Nagato

et al. 2010

Neurol. Med. Chir.(Tokyo)

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“…Transsphenoidal surgery is the most preferred method in pituitary adenomas' disadvantages of transsphenoidal approaches are sella's deeply location, adjacent of carotid artery and 2 dimentions images with flouroscopy [1] [22] [23]. On the other hand 3-D images with neuronavigation make surgery easier.…”

Section: Discussionmentioning

confidence: 99%

The Use of Neuronavigation with Vasular Microdoppler in Transsphenoidal Pituitary Surgery

Seyithanoğlu

Kitiş

Papaker

et al. 2016

OJMN

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“…Image-guided neurosurgical techniques using navigation systems have been used in patients with brain tumors since 1980's (27). Utilization of these developments provided more accurate access to the tumor, which was reflected in decreased morbidity, shorter hospitalization and lower cost (2,19).…”

Section: Discussionmentioning

confidence: 99%

Use of topical landmarks for percutaneous projection of intracranial tumors for neurosurgical oncology

Aydın

Kocabıcak²,

Altun³

et al. 2011

Turkish Neurosurgery

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AIm:The objective of this study was to introduce a surgical navigation method which provides a safe, quick and effective access to cortical and subcortical tumors, along with a review of other methods in use for this purpose. mAteRIAl and methods: 53 patients have been operated using this technique. The area overlying the tumor is shaved and one half of a smoothly cut hazelnut is taped on the skin. The precise localization of the hazelnut is confirmed with MRI and then stained. After general anesthesia, the stained impression is projected firstly to the bone, dura and then cortex respectively by the Midas Rex cutting tip. Cortical landmarks surrounding the tumor's cortical projection are further confirmed with ultrasonography.Results: After removal, cortical and subcortical tumors were separately graded for efficiency. Grade 1 and 2 were accepted as precise access. Our method accordingly yielded 95.2% and 90.6% success rates for cortical and subcortical tumors respectively. ConClusIon:Considering the method's success rate along with its inexpensiveness and modest technical requirements, it is believed that this method can be of widespread use.KeywoRds: Cortical landmarks, Subcortical tumor, Cortical tumor, Tumor localization, Surgical navigation ÖZ AmAÇ: Bu çalışmanın amacı, kullanımda olan diğer metodları da gözden geçirerek, topikal işaretler yardımıyla kortikal ve subkortikal yerleşimli tümörlerde etkili, güvenli ve hızlı bir cerrahi yöntemi sunmaktır. yÖntem ve GeReÇleR: 53 hasta bu teknik kullanılarak opere edildi. Tümörün izdüşümündeki saçlı deri traş edildikten sonra düzgün şekilde yarısı kesilmiş fındık cilt üzerine yapıştırıldı. Fındığın tümör izdüşümündeki lokalizasyonu doğrulandıktan sonra alan işaretlendi. Genel anestezi altında işaretlenmiş alanın izdüşümü alınarak sırasıyla kemik ve dura, kortekse kadar Midas rex kesici uç yardımıyla işaretlendi. Tümör ve onu çevreleyen kortikal yapılar ultrasonografi yardımıyla görüldü ve doğrulandı.BulGulAR: Tümör çıkartıldıktan sonra etkinlik açısından derecelendirme yapıldı. Buna göre grade 1 ve grade 2 lokalizasyon açısından kesin doğru giriş noktası olarak kabul edildi. Bizim metodumuzun subkortikal tümörlerde %90,6 ve kortikal tümörlerde %95,2 oranında giriş noktası açısından etkin olduğu saptandı. sonuÇ: Bu yöntem ucuzluğu, basit ve kolay şekilde uygulanabilirliği nedeniyle geniş bir kullanım alanı olabilecek bir teknik gibi gözükmektedir.

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Three-dimensional digitizer (neuronavigator): New equipment for computed tomography-guided stereotaxic surgery

Cited by 430 publications

References 6 publications

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

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

The Use of Neuronavigation with Vasular Microdoppler in Transsphenoidal Pituitary Surgery

Use of topical landmarks for percutaneous projection of intracranial tumors for neurosurgical oncology

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