Frameless localization for functional neurosurgical procedures: a preliminary accuracy study.

abstract：BACKGROUND/AIMS:Our study aimed to evaluate the efficiency and morbidity of Gamma Knife radiosurgery (GKS) in the treatment of hemorrhagic brainstem cavernous malformations (CMs). METHODS:We included in this study all patients who underwent GKS for the treatment of a hemorrhagic brainstem CM(s) in our institution betw...

journal_title：Stereotactic and functional neurosurgery

authors： Aboukais R,Estrade L,Devos P,Blond S,Lejeune JP,Reyns N

更新日期：2016-01-01 00:00:00

abstract：:We present a system for surgical navigation using stereo overlays in the operating microscope aligned to the operative scene. This augmented reality system provides 3D information about nearby structures and offers a significant advancement over pointer-based guidance, which provides only the location of one point and...

journal_title：Stereotactic and functional neurosurgery

authors： King AP,Edwards PJ,Maurer CR Jr,de Cunha DA,Hawkes DJ,Hill DL,Gaston RP,Fenlon MR,Strong AJ,Chandler CL,Richards A,Gleeson MJ

更新日期：1999-01-01 00:00:00

abstract：:Fractionated stereotactic radiotherapy is a method which attempts to combine the radiobiological advantages offered by dose fractionation with a technique for focal delivery of radiation. At McGill University, fractionated stereotactic radiotherapy is given with a linear accelerator-based dynamic stereotactic radiosur...

journal_title：Stereotactic and functional neurosurgery

authors： Olivier A,Sadikot AF,Villemure JG,Pokrupa R,Souhami L,Podgorsak EB,Hazel J

更新日期：1992-01-01 00:00:00

abstract：:Posttraumatic stress disorder (PTSD) is a prevalent and highly disabling psychiatric disorder that is notoriously difficult to treat. At some point in their lifetimes, 5-8% of men, 10-14% of women, and up to a quarter of combat veterans carry this diagnosis. Despite pharmacological and behavioral therapies, up to 30% ...

journal_title：Stereotactic and functional neurosurgery

authors： Taghva A,Oluigbo C,Corrigan J,Rezai AR

更新日期：2013-01-01 00:00:00

abstract：:Autologous transplantation of the superior cervical ganglion (SCG) into the caudate nuclei of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced parkinsonian monkey was studied in regard to animal behavior and catecholamine (CA) metabolites in cerebrospinal fluid. Monkeys which had undergone autotransplantation of t...

journal_title：Stereotactic and functional neurosurgery

authors： Nakai M,Itakura T,Komai N

更新日期：1990-01-01 00:00:00

abstract：:In nearly all deep brain stimulation (DBS) applications, the same quadripolar electrode design is used for different anatomical targets even if shape and volume differences exist between nuclei. Taking into account the electrode location within the internal globus pallidus (GPi) and the size of the GPi, 2 electrodes w...

journal_title：Stereotactic and functional neurosurgery

authors： Vasques X,Cif L,Mennessier G,Coubes P

更新日期：2010-01-01 00:00:00

abstract：:Stereotactic guidance is useful for planning an accurate trajectory to the third ventricle. A guiding block with a ball joint was developed for frame-based endoscopy and adaptors for arm-based and armless navigation systems. Between 1992 and 1996, 52 patients were operated on endoscopically in the third ventricle unde...

journal_title：Stereotactic and functional neurosurgery

authors： Grunert P,Hopf N,Perneczky A

更新日期：1997-01-01 00:00:00

abstract：:Stereotactic radiosurgery under local anesthesia with the Leksell Gamma Knife can effectively treat some patients with recurrent tic douloureux after unsuccessful medical/surgical procedures. Seven of 12 patients have shown complete relief or improvement of their trigeminal neuralgia. No complications have been observ...

journal_title：Stereotactic and functional neurosurgery

authors： Rand RW,Jacques DB,Melbye RW,Copcutt BG,Levenick MN,Fisher MR

更新日期：1993-01-01 00:00:00

abstract：PURPOSE:To evaluate dose conformity and mean target dose in light of previous comparative studies and state-of-the-art radiosurgery delivery modalities. MATERIALS AND METHODS:Seven patients with acoustic neuromas deemed clinically suitable for linear accelerator or Gamma Knife radiosurgery were planned such that the m...

journal_title：Stereotactic and functional neurosurgery

authors： Perks JR,El-Hamri K,Blackburn TP,Plowman PN

更新日期：2005-01-01 00:00:00

abstract：:Stereotactic interventions at thalamic/subthalamic levels for parkinsonian tremor give the chance to investigate the influence of the supraspinal proprioceptive loops on the tonic component of motor tasks. Studies demonstrate not only a normalization of the late stretch reflex component and a decrease of the pre-refle...

journal_title：Stereotactic and functional neurosurgery

authors： Struppler A

更新日期：1993-01-01 00:00:00

abstract：BACKGROUND/AIMS:During the placement of electrodes for deep brain stimulation (DBS), patients are commonly in a seated position, awake, and spontaneously breathing. Air may be entrained through bone or dural veins causing venous air emboli (VAE) and this phenomenon can result in significant hemodynamic changes. Althoug...

journal_title：Stereotactic and functional neurosurgery

authors： Hooper AK,Okun MS,Foote KD,Haq IU,Fernandez HH,Hegland D,Robicsek SA

更新日期：2009-01-01 00:00:00

abstract：BACKGROUND:To maintain the efficacy of deep brain stimulation (DBS) on dystonic symptoms, slight incremental increase in voltage may be necessary over years after a steady state has been reached following the initial programming of optimal settings. So far however, no data are available regarding the adjustment of volt...

journal_title：Stereotactic and functional neurosurgery

authors： Blahak C,Capelle HH,Bäzner H,Kinfe T,Hennerici MG,Krauss JK

更新日期：2010-01-01 00:00:00

abstract：:The longevity of batteries in internal pulse generators (IPGs) used clinically for deep brain stimulation is not known. We conducted a study to assess the life span of these batteries. From 1993 to 2000, 163 single-channel batteries were surgically implanted in our institution. The electrical settings utilized in pati...

journal_title：Stereotactic and functional neurosurgery

authors： Bin-Mahfoodh M,Hamani C,Sime E,Lozano AM

更新日期：2003-01-01 00:00:00

abstract：:Stiff limb syndrome (SLS) is a rare chronic condition which can result in significant debility. We report the case of a 44-year-old man suffering from severe painful spasms in his right leg with a diagnosis of SLS. He had been initially treated for his pain with a spinal cord stimulator but presented with exacerbation...

journal_title：Stereotactic and functional neurosurgery

authors： Ughratdar I,Sivakumar G,Basu S

更新日期：2010-01-01 00:00:00

abstract：:The management of cerebral arteriovenous malformations (AVMs) continues to present a challenge to neurosurgeons. The natural history of this condition, as well as the morbidity and mortality of therapeutic interventions, remains incompletely elucidated. Predictive factors and grading scales in AVM management allow ris...

journal_title：Stereotactic and functional neurosurgery

authors： Starke RM,Komotar RJ,Hwang BY,Fischer LE,Otten ML,Merkow MB,Garrett MC,Isaacson SR,Connolly ES Jr

更新日期：2008-01-01 00:00:00

abstract：:Background: Stimulation parameters are crucial for the efficacy and safety of motor cortex stimulation (MCS). Motor threshold (MT) can be defined as the lowest voltage that produces motor contraction. The final stimulation parameters are always a smaller percentage of MT in order to avoid seizures. We determined how p...

journal_title：Stereotactic and functional neurosurgery

authors： Chang S,Ranjan M,Slotty PJ,Honey CR

更新日期：2015-01-01 00:00:00

abstract：:Stereotactic techniques were used to transplant adrenal medullary tissue to the head of the right caudate nucleus in 12 patients with Parkinson's disease. No significant lasting complications were seen. All patients had an initial improvement. 11 of the 12 patients remain improved over their preoperative condition aft...

journal_title：Stereotactic and functional neurosurgery

authors： Gildenberg PL,Pettigrew LC,Merrell R,Butler I,Conklin R,Katz J,DeFrance J

更新日期：1990-01-01 00:00:00

abstract：BACKGROUND:Up to 60% of Parkinson's disease (PD) patients suffer from low back pain (LBP) during the course of their disease. How LBP affects daily functional status and how to manage this aspect of PD has not been adequately explored. METHODS:We examined 16 patients undergoing bilateral subthalamic nucleus deep brain...

journal_title：Stereotactic and functional neurosurgery

authors： Smith H,Gee L,Kumar V,Ramirez-Zamora A,Durphy J,Hanspal E,Barba A,Molho E,Shin D,Pilitsis JG

更新日期：2015-01-01 00:00:00

abstract：OBJECTIVES:To investigate the effects of low- and high-frequency deep brain stimulation (DBS) on the nucleus accumbens (ACC) and the adjacent internal capsule in 3 patients with obsessive-compulsive disorder (OCD) using blood oxygenation level-dependent (BOLD) functional magnetic resonance imaging (fMRI) under intraope...

journal_title：Stereotactic and functional neurosurgery

authors： Hiss S,Hesselmann V,Hunsche S,Kugel H,Sturm V,Maintz D,Visser-Vandewalle V,Liebig T,Maarouf M

更新日期：2015-01-01 00:00:00

abstract：:Postoperative magnetic resonance imaging (MRI) of basal ganglia functional lesions illustrates the accuracy of preoperative target localization. The technique of perioperative MRI and CT localization for pallidotomy will be discussed and correlated with the center of the lesion on postoperative standard MRI as well as...

journal_title：Stereotactic and functional neurosurgery

authors： Lehman RM,Mezrich R,Sage J,Goldbe L

更新日期：1994-01-01 00:00:00

abstract：BACKGROUND:The optimum target in surgery for Parkinson's disease (PD) is still controversial, especially in patients with tremor-dominant PD. We aim to compare results in tremor-dominant patients undergoing pallidotomy vs. those undergoing simultaneous posteroventral pallidotomy (PVP) and ventral intermediate nucleus (...

journal_title：Stereotactic and functional neurosurgery

authors： Fayed ZY,Radwan H,Aziz M,Eid M,Mansour AH,Nosseir M,Anwer H,Elserry T,Abdel Ghany WA

更新日期：2018-01-01 00:00:00

abstract：:Background: Trigeminal neuralgia (TN) is mostly caused by vascular compression of the nerve's root entry zone due to an ectatic artery. Rarer causes include compression from tumors, vascular malformations or multiple sclerosis plaques. Developmental venous anomalies (DVAs) are benign, aberrantly appearing venous struc...

journal_title：Stereotactic and functional neurosurgery

authors： Harrison G,Lunsford LD,Monaco Iii EA

更新日期：2015-01-01 00:00:00

abstract：OBJECTIVE:To perform a preliminary study on the effects and safety of bilateral cingulotomy and anterior capsulotomy in patients with aggressive behavior. PATIENTS AND METHODS:Twenty-three psychiatric patients showing aggressive behavior refractory to conventional treatment were initially evaluated. The subjects were ...

journal_title：Stereotactic and functional neurosurgery

authors： Jiménez F,Soto JE,Velasco F,Andrade P,Bustamante JJ,Gómez P,Ramírez Y,Carrillo-Ruiz JD

更新日期：2012-01-01 00:00:00

abstract：:Reinstallation of the Sheffield Gamma Knife Unit was completed in early November, 1991, following the replacement of the cobalt sources. Two methods were used to evaluate the isodose configuration within the replenished unit. The first method used a scanning microdensitometer to interrogate films exposed within a sphe...

journal_title：Stereotactic and functional neurosurgery

authors： Walton L,Griffiths LM,Hampshire A

更新日期：1993-01-01 00:00:00

abstract：:Twenty-five gliomas of the cerebral hemisphere in children were examined. Most hemispheric gliomas in children have relatively clear margins and less infiltrative potential. Radiosurgery has a role in the treatment of these tumors in addition to reducing the risk of radiation injuries developing later. Fifteen patient...

journal_title：Stereotactic and functional neurosurgery

authors： Inoue HK,Kohga H,Zama A,Hirato M,Shibazaki T,Andou Y,Ohye C

更新日期：1996-01-01 00:00:00

abstract：:Interstitial hyperthermia of malignant brain tumors has been produced by a heated ferromagnetic implant with a low Curie point. Induction heating of the implant, which is stereotactically implanted in a tumor, is obtained by eddy currents in a high-frequency magnetic field. Safe, repeated and long-term treatment of 35...

journal_title：Stereotactic and functional neurosurgery

authors： Kobayashi T,Kida Y

更新日期：1992-01-01 00:00:00

abstract：BACKGROUND:Adjustment of the motor circuitry has been described in the treatment of Parkinson disease (PD). OBJECTIVES:To evaluate the modulation of the motor circuitry of PD patients by subthalamic deep brain stimulation (STN DBS) using 18F-fluorodeoxyglucose (FDG) and positron emission tomography (PET). METHODS:Res...

journal_title：Stereotactic and functional neurosurgery

authors： Cao C,Zhang H,Li D,Zhan S,Zhang J,Zhang X,Zuo C,Sun B

更新日期：2017-01-01 00:00:00

abstract：:Corpus callosotomy is a viable treatment for patients with refractory generalized or multifocal epilepsy, particularly those who have drop attacks. Laser interstitial thermal therapy (LITT) is a minimally invasive surgical option for various intracranial lesions. In this report, we present a 2-trajectory thermal ablat...

journal_title：Stereotactic and functional neurosurgery

authors： Ball T,Sharma M,White AC,Neimat JS

更新日期：2018-01-01 00:00:00

abstract：BACKGROUND:The neuropathological consequences of Gamma Knife radiosurgery (GK) on hypothalamic hamartoma (HH) are unknown. OBJECTIVE:In a cohort of patients undergoing surgery for treatment-resistant epilepsy, we compared surgically resected HH tissue from patients without (group I; n = 19) and with (group II; n = 10)...

journal_title：Stereotactic and functional neurosurgery

authors： Kerrigan JF,Parsons A,Rice SG,Simeone K,Shetter AG,Abla AA,Prenger E,Coons SW

更新日期：2013-01-01 00:00:00

abstract：:At the 1989 meeting of the World Society for Stereotactic and Functional Neurosurgery in Maebashi, the authors presented the concept and design of a stereotactic neurosurgical robot. The first prototype has now been completed and has entered clinical testing. The characteristics are as follows. The robot is positioned...

journal_title：Stereotactic and functional neurosurgery

authors： Fankhauser H,Glauser D,Flury P,Piguet Y,Epitaux M,Favre J,Meuli RA

更新日期：1994-01-01 00:00:00