We sought to investigate the three-dimensional structure of white matter brain by means fiber-dissection technique and diffusion-tensor magnetic resonance imaging assess usefulness combination both techniques, compare their results, review potential functional role fiber tracts.Fifteen formalin-fixed human hemispheres were dissected according Klingler's with aid 36 340 magnification. Three-dimensional anatomic images created use specific software. Two hundred patients neurological symptoms...

The goal in this study was to examine the microsurgical and tractographic anatomy of claustrum its projection fibers, analyze functional surgical implications findings.Fifteen formalin-fixed human brain hemispheres were dissected using Klingler fiber dissection technique, with aid an operating microscope at x 6-40 magnification. Magnetic resonance imaging studies 5 normal brains analyzed diffusion tensor (DT) imaging-based tractography software.Both external capsule have 2 parts: dorsal...

Surgical cure can be achieved in pituitary adenomas when they are completely removed. It is controversial whether postoperative radiation therapy should given to prevent recurrence, and an early reoperation performed for residual adenomas, because we have little information about the natural history of adenomas.The tumor volume was serially measured 40 nonfunctioning (NFPAs) doubling time (TVDT) calculated. Correlations between patients' age, volume, log TVDT, MIB-1 index were examined....

OBJECTIVE Microneurosurgery can be performed less invasively with the recent advances in neuronavigation and neuroendoscopy. For even invasive microneurosurgery, we have developed a telecontrolled micromanipulator system. METHODS The NeuRobot system was developed. With use of this system, surgical simulations were human cadaveric head. RESULTS consists four main parts, i.e., (slave manipulator), manipulator-supporting device, an operation-input device (master three-dimensional display...

<h3>BACKGROUND AND PURPOSE:</h3> Early evaluation of the pyramidal tract is a prerequisite in patients with intracerebral hemorrhage (ICH) order to decide optimal treatment or assess appropriate rehabilitation. The aim this study was evaluate and predict neuromotor functional outcome an ICH by using diffusion tensor imaging (DTI) acute phase. <h3>MATERIALS METHODS:</h3> Eighteen hemiparetic supratentorial were prospectively studied DTI within 2 days after onset. A region-of-interest-based...

Neuroimages often reveal that the trigeminal or facial nerve comes in contact with vessels but does not produce symptoms of neuralgia (TN) hemifacial spasm (HFS). The authors conducted this study to determine how and nerves came individuals suffering from TN HFS. They also investigated correlation between aging anatomical measurements nerves.Between November 2005 August 2006, 220 110 (60 women 50 men; mean age 55.1 years, range 19-85 years) who had undergone brain magnetic resonance (MR)...

✓The authors report on the case of a 6-year-old boy who underwent resection midline cerebellar tumor. The was able to speak fluently after operation. Magnetic resonance (MR) imaging showed that right dentate nucleus had been partially removed along with tumor, but left remained residual A second operation performed remove residue, which child suffered mutism. Three weeks postsurgery, he could only communicate through gestures. He started speaking 1 week later and regained normal speech 2...

Abstract The surgical efficacy for supratentorial intracerebral hemorrhage (ICH) remains unknown. We compared the advantages of widely practiced endoscopic hematoma removal under local anesthesia with that craniotomy general ICH. also focused on our novel operative concept intentional leaving technique to avoid further damage brain. retrospectively analyzed 134 consecutive patients (66 endoscopies and 68 craniotomies) who were surgically treated characteristics as follows: median...

Background: Reliable prediction models of subarachnoid hemorrhage (SAH) outcomes are needed for decision-making the treatment. SAFIRE score using only four variables is a good scoring system. However, making such needs large number samples and time-consuming statistical analysis. Deep learning (DL), one artificial intelligence, attractive, but there were no reports on SAH DL. We herein made model DL software, Prediction One (Sony Network Communications Inc., Tokyo, Japan) compared it to...

Skeletal muscle mass is an important factor for various diseases' outcomes. As its indicators, temporal thickness (TMT) and area (TMA) on the head computed tomography are useful, TMT TMA were reported as potential prognostic factors aneurysmal subarachnoid hemorrhage (SAH). We examined clinical characteristics, including TMA, of SAH patients aged 75 or younger.We retrospectively investigated 127 with all World Federation Neurosurgical Societies (WFNS) grades treated by clipping between 2009...

The NeuRobot is a telecontrolled microscopic micromanipulator system designed for neurosurgical procedures. unit houses three-dimensional endoscope and three robot arms that the surgeon operates without direct contact with patient. authors have successfully performed robotics-assisted procedures by using in 54-year-old man who had recurrent atypical meningioma. Following usual preparation of craniotomy opening dura mater, portion tumor was removed aid observation. No complication related to...

The goal was to develop an interactive three-dimensional (3-D) computerized anatomic model of the skull base for teaching microneurosurgical anatomy and operative planning.The 3-D constructed using commercially available software (Maya 6.0 Unlimited; Alias Systems Corp., Delaware, MD), a personal computer, four cranial specimens, six dry bones. Photographs from at least two angles superior lateral views were imported software. Many photographs needed produce in anatomically complex areas....

Reliable prediction models of intracerebral hemorrhage (ICH) outcomes are needed for decision-making the treatment. Statistically making such needs a large number samples and time-consuming statistical analysis. Deep learning (DL), one artificial intelligence, is attractive, but there were no reports on DL-based functional outcome ICH after surgery. We herein made model using DLframework, Prediction One (Sony Network Communications Inc., Tokyo, Japan), compared it to original score, Grading...

Abstract OBJECTIVE This study was undertaken to define more accurately the feasibility and indications of contralateral pterional approach ophthalmic segment aneurysms internal carotid artery (ICA). METHODS Between 1995 1999, 46 patients with ICA were surgically treated in our institution. Eleven operated using approach. All successfully clipped without complications; three required bone resection around aneurysm neck. We studied 11 who by defining six parameters assess predict necessity for...

To perform less invasive neurosurgery, a telecontrolled micromanipulator system has been developed and applied to clinical situations. Basic experiments for telesurgery have also conducted.A cadaver head was used carry out surgical simulation of the opening sylvian fissure third ventriculostomy. After obtaining permission from Ethical Committee Shinshu University School Medicine, part recurrent meningioma in 45-year-old man removed. As basic experiment telesurgery, conducted rat brain with...

The course of the lesser petrosal nerve is not well understood and may be confused with greater during middle fossa surgery. objective was to examine along floor cranial from region geniculate ganglion its outlet skull base. There are no studies focused on this in relationship fossa.Twenty fossae adult cadaveric specimens were examined using 3 40x magnification.The partially exposed without drilling 75% totally covered by thin bone 25%. It crossed anterior exited through canaliculus...

Endoscopic treatment for chronic subdural hematoma (CSDH) has been reported, but endoscopic findings of CSDH have not thoroughly investigated. This study aimed to elucidate the relationship between and recurrence. Furthermore, it examined association Nagahori's histopathological staging outer membrane color. Here, we retrospectively analyzed operative videos 70 patients with CSDH. The were investigated, their correlations recurrence, reduction ratio midline shift, thickness on day 30 after...

Three-dimensional (3D) neuroimages are generally considered useful for neurosurgical practice. Nevertheless, neuroimaging modalities such as 3D digital subtraction angiography and computerized tomography still insufficient because the resulting images fail to delineate neural structures. Complex procedures mostly performed in cerebrospinal fluid (CSF) space of basal cistern, where vessels structures present along with lesion. The magnetic resonance (MR) imaging-derived constructive...