New Radiofrequency Coil Integrated with a Stereotactic Frame for Intraoperative MRI-Controlled Stereotactically Guided Brain Surgery

Taniguchi, Hiroki; Muragakı, Yoshihiro; Iseki, Hiroshi; Nakamura, Ryoichi; Taira, Takaomi

doi:10.1159/000094845

Cited by 5 publications

(4 citation statements)

References 33 publications

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“…Once the position of the patient and the head is rigidly stabilized in a frame the coordinates of the anatomical control points on the head are registered to virtual image anatomy in the image space. The locating probe is used to establish the salient anatomy landmarks to navigate with infra-red or radio frequency detection system(H. Taniguchi et al, 2006). The Rotitome-G has electromagnetic solenoids built into the instrument for tumour-space navigation.…”

Section: Rotitome-g Instrument Placement and Practice Of The Hsg-amoe...mentioning

confidence: 99%

Experimental Endoscope Rotitome-G: A pixel-by-pixel erasure microsurgical endoscopic sarcotome for resection of soft tissue tumours in closed body cavities

Gandhi

2022

IJCT

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Background: The procedure of minimal access to the brain through the nose is an ancient practice. However, endoscopic entry via a burr hole has recently gained significant traction in the practice of neurosurgery. High-resolution endoscopic images are possible with limited admittance of accessory tools and instruments. Although brain tissue can be removed easily with a suction device, but it will be uncontrolled ‘excision’. The Rotitome-G is a precision micro-endoscopic target access surgical instrument. It has several accessories for intraoperative assessment and precise removal of the soft tissue lesions pixel-by-pixel within a closed body cavity through a single portal. Objective: This preliminary theoretical research study on Rotitome-G is transition to experimental cadaveric and clinical studies. It describes the construction and mechanics of this newly conceptualized robot-assisted microsurgical endoscope. The design includes precise excision at the pixel and microscopic level and removes tissue debris under computer-aided navigation and direct instrument vision. Currently, the primary objective is to interest both the neurosurgeons and biomedical engineers, hence its contents are diverse resulting in an extended text. Methodology: The study provides the basics of computer vision techniques and neuronavigation to establish the function and application of the Rotitome-G. The structure and kinematics of the animalcule Rotifer have been considered followed by the construction of Rotitome-G. For a better understanding of intracranial tumour excision, the article examines the role of intra-operative imaging, biomechanics of brain tissue, and brain shift to better understand the principles of this newly conceived microsurgical instrument. The functional capabilities of the instrument have been putatively demonstrated by describing the excision of a glioblastoma. Conclusion: It is expected that the key design of Rotitome-G would meet the goal of neurosurgical resection by excising maximum amount of pathological tissue. Direct microscopic resection will prevent damage to the eloquent areas to improve the prognosis by limiting neurological morbidity. Clinical validity of the Rotitome -G remains to be determined.

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Section: Rotitome-g Instrument Placement and Practice Of The Hsg-amoe...mentioning

confidence: 99%

Experimental Endoscope Rotitome-G: A pixel-by-pixel erasure microsurgical endoscopic sarcotome for resection of soft tissue tumours in closed body cavities

Gandhi

2022

IJCT

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“…22,23,32,33,39,72,77 Kameyama et al reported the largest group, consisting of 25 patients, of whom 19 (76%) had seizure remission. As seen in the SRS group, substantial improvements in behavior also occurred.…”

Section: Hypothalamic Hamartomasmentioning

confidence: 99%

Minimally invasive techniques for epilepsy surgery: stereotactic radiosurgery and other technologies

Quigg

Harden

2014

JNS

104

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Minimally invasive surgical techniques for the treatment of medically intractable epilepsy, which have been developed by neurosurgeons and epileptologists almost simultaneously with standard open epilepsy surgery, provide benefits in the traditional realms of safety and efficacy and the more recently appreciated realms of patient acceptance and costs. In this review, the authors discuss the shortcomings of the gold standard of open epilepsy surgery and summarize the techniques developed to provide minimally invasive alternatives. These minimally invasive techniques include stereotactic radiosurgery using the Gamma Knife, stereotactic radiofrequency thermocoagulation, laser-induced thermal therapy, and MRI-guided focused ultrasound ablation.

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“…It provides an opportunity to perform MRI investigations with minimal distortion artifacts and maximum structure contrasting in any plane irrespectively to the orientation of the object, which allows fi xation of the patient ' s head in the most desirable position for tumor removal. Integration of the head-holder coil with a modifi ed Komai stereotactic frame [14] permits us to perform stereotactically guided surgical procedures under the control of iMRI ( ᭹ ᭤ Fig. 3 ).…”

Section: Intraoperative Mrimentioning

confidence: 99%

Advanced Computer-aided Intraoperative Technologies for Information-guided Surgical Management of Gliomas: Tokyo Women's Medical University Experience

Iseki¹,

Nakamura²,

Muragakı³

et al. 2008

Minim Invasive Neurosurg

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The availability of the intraoperative MRI and real-time neuronavigation has dramatically changed the principles of surgery for gliomas. Current intraoperative computer-aided technologies permit perfect localization of the neoplasm, precise estimation of its volume, and clear definition of its interrelationships with the eloquent brain structures. This allows maximal tumor resection with minimal risk of postoperative disabilities. Under such conditions the medical treatment has become significantly dependent on the quality of the provided information and can be designated as information-guided management. Therefore, appropriate management of the wide spectrum of the intraoperative medical data and its adequate distribution between members of the surgical team for facilitation of the clinical decision-making is very important for attainment of the best possible outcome. Further progress in advanced neurovisualization, robotics, and comprehensive medical information technology has a great potential to increase the safety of the neurosurgical procedures for parenchymal brain tumors in the eloquent brain areas.

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New Radiofrequency Coil Integrated with a Stereotactic Frame for Intraoperative MRI-Controlled Stereotactically Guided Brain Surgery

Cited by 5 publications

References 33 publications

Experimental Endoscope Rotitome-G: A pixel-by-pixel erasure microsurgical endoscopic sarcotome for resection of soft tissue tumours in closed body cavities

Experimental Endoscope Rotitome-G: A pixel-by-pixel erasure microsurgical endoscopic sarcotome for resection of soft tissue tumours in closed body cavities

Minimally invasive techniques for epilepsy surgery: stereotactic radiosurgery and other technologies

Advanced Computer-aided Intraoperative Technologies for Information-guided Surgical Management of Gliomas: Tokyo Women's Medical University Experience

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