Carpal tunnel syndrome: correlation of magnetic resonance imaging, clinical, electrodiagnostic, and intraoperative findings.


:We undertook a prospective study of 43 wrists in 32 patients who had been clinically diagnosed as having carpal tunnel syndrome (study group) and 5 wrists in people who had no symptoms (control group), correlating the clinical, electrodiagnostic, intraoperative, and magnetic resonance imaging (MRI) findings. MRI of the carpal tunnel and thenar eminence was performed, using coronal and axial T1- and T2-weighted, proton density, and short tau inversion recovery sequences. Abnormalities of the median nerve, as revealed by MRI, were found in 43 of 43 (100%) wrists in the study group and in 0 of 5 (0%) wrists in the control group. Increased signal of the median nerve was seen in 41 of 43 (95%) wrists, increased signal of the flexor tendon sheath in 41 of 43 (95%), volar bowing of the flexor retinaculum in 39 of 43 (91%), increased distance between the flexor tendons in 37 of 43 (86%), and abnormal nerve configuration in 28 of 43 (65%). Increased short tau inversion recovery signal of the thenar muscles was found in 5 of 43 (12%) wrists, all of which had undergone severe denervation changes, as revealed by electromyography. Operative release was performed for 27 of 43 (63%) wrists, and follow-up was obtained for 42 of 43 (98%). A good or excellent postoperative outcome resulted for 20 of 27 (74%) patients, a fair outcome for 2 of 27 (7%), and a poor outcome for 4 of 27 (15%), and 1 of 27 (4%) patients was lost to follow-up. For patients undergoing carpal tunnel release whose MRI revealed an abnormal nerve configuration, the outcome was improved, with good or excellent results in 15 of 18 (83%) patients. No association with outcome was seen with median nerve or flexor tendon signal changes, increased interspace between the flexor tendons, or flexor retinaculum bowing. Our results indicate that MRI is a sensitive diagnostic modality that can demonstrate signal and configurational abnormalities of the median nerve in patients diagnosed with carpal tunnel syndrome. Increased signal of the thenar muscles, as revealed by MRI, using short tau inversion recovery sequences, occurs only in muscles that have undergone severe denervation changes, as revealed by electromyography.






Britz GW,Haynor DR,Kuntz C,Goodkin R,Gitter A,Kliot M




Has Abstract


1995-12-01 00:00:00












  • Near-infrared indocyanine green video angiography: a new method for intraoperative assessment of vascular flow.

    abstract:OBJECTIVE:We report our initial clinical experience with a new method for intraoperative blood flow assessment. The purposes of the study were to assess the use of indocyanine green (ICG) video angiography in neurovascular cases, to assess the handling and image quality, to compare the findings with postoperative angio...


    pub_type: 杂志文章


    authors: Raabe A,Beck J,Gerlach R,Zimmermann M,Seifert V

    更新日期:2003-01-01 00:00:00

  • Injuries involving the transverse atlantal ligament: classification and treatment guidelines based upon experience with 39 injuries.

    abstract::Comprehensive anatomic and clinical analyses of 39 patients with injuries involving the transverse atlantal ligament or its osseous insertions were performed to assess the morphology of the injured ligaments and the patients' capacity to heal. Injuries of the upper cervical spine were screened with plain radiographs, ...


    pub_type: 杂志文章


    authors: Dickman CA,Greene KA,Sonntag VK

    更新日期:1996-01-01 00:00:00

  • Initial characterization of the dosimetry and radiology of a device for administering interstitial stereotactic radiosurgery.

    abstract:OBJECTIVE:We report the design and initial characterization of the dosimetry and radiobiology of a novel device for interstitial stereotactic radiosurgery. INSTRUMENTATION:The device is lightweight, handheld, and battery-powered, and it emits x-ray radiation from the tip of a probe 3 mm in diameter by 10 cm in length....


    pub_type: 杂志文章


    authors: Hakim R,Zervas NT,Hakim F,Butler WE,Beatty J,Yanch JC,Biggs PJ,Gall KP,Sliski AP

    更新日期:1997-03-01 00:00:00

  • Initial multicenter technical experience with the Apollo device for minimally invasive intracerebral hematoma evacuation.

    abstract:BACKGROUND:No conventional surgical intervention has been shown to improve outcomes for patients with spontaneous intracerebral hemorrhage (ICH) compared with medical management. OBJECTIVE:We report the initial multicenter experience with a novel technique for the minimally invasive evacuation of ICH using the Penumbr...


    pub_type: 杂志文章,多中心研究


    authors: Spiotta AM,Fiorella D,Vargas J,Khalessi A,Hoit D,Arthur A,Lena J,Turk AS,Chaudry MI,Gutman F,Davis R,Chesler DA,Turner RD

    更新日期:2015-06-01 00:00:00

  • Preferential susceptibility of brain tumors to the antiangiogenic effects of an alpha(v) integrin antagonist.

    abstract:OBJECTIVE:Brain tumors are highly angiogenic, and their growth and spread depend on the generation of new blood vessels. We examined the effect of the cyclic peptide antagonist pentapeptide EMD 121974, an antiangiogenic agent, on orthotopic and heterotopic brain tumor growth. METHODS:The human brain tumor cell lines D...


    pub_type: 杂志文章


    authors: MacDonald TJ,Taga T,Shimada H,Tabrizi P,Zlokovic BV,Cheresh DA,Laug WE

    更新日期:2001-01-01 00:00:00

  • Emergent aneurysm clipping without angiography in the moribund patient with intracerebral hemorrhage: the use of infusion computed tomography scans.

    abstract::The authors report their experience with 25 patients (mean age, 44.3 +/- 12.1 years) with an intracerebral hematoma (ICH) from a ruptured aneurysm who were emergently operated on without angiography. Instead, preoperative high-resolution infusion computed tomography (CT) scans were used to identify the aneurysm causin...


    pub_type: 杂志文章


    authors: Le Roux PD,Dailey AT,Newell DW,Grady MS,Winn HR

    更新日期:1993-08-01 00:00:00

  • A risk/benefit analysis of spinal manipulation therapy for relief of lumbar or cervical pain.

    abstract::Approximately 12 million Americans undergo spinal manipulation therapy (SMT) every year. Renewed interest in this method requires an analysis of its reported risks and possible benefits. This review describes two patients with spinal cord injuries associated with SMT and establishes the risk/benefit ratios for patient...


    pub_type: 历史文章,杂志文章,评审


    authors: Powell FC,Hanigan WC,Olivero WC

    更新日期:1993-07-01 00:00:00

  • Liposclerosing Myxofibrous Tumor of the Cranial Vault: A Case Report.

    abstract:BACKGROUND AND IMPORTANCE:Liposclerosing myxofibrous tumors (LSMFTs) are rare benign fibro-osseous tumors most frequently occurring in the proximal femur. We report the first case of this rare tumor occurring within the calvarium. CLINICAL PRESENTATION:Our patient presented with a 2-yr history of enlarging, painless, ...


    pub_type: 杂志文章


    authors: Ploof J,Shaikh H,Melli J,Jour G,Turtz A

    更新日期:2019-03-01 00:00:00

  • Heparin-associated thrombocytopenia in the neurosurgical patient.

    abstract::Although thrombocytopenia occurs in approximately 10% of medical patients who receive heparin, this complication has not been described in neurosurgical patients. We report the clinical course of two patients who in the immediate postoperative period developed heparin-associated thrombocytopenia that resulted in signi...


    pub_type: 杂志文章


    authors: Doty JR,Alving BM,McDonnell DE,Ondra SL

    更新日期:1986-07-01 00:00:00

  • Isolated paraplegia from a remote stab wound.

    abstract::A stab wound to the right flank of a 24-year-old man produced immediate paralysis of both legs but spared sensation. Recovery was slow but sufficient to allow walking with a cane. Radicular artery interruption, in combination with systemic hypotension, is presumed to have caused selective watershed infarction of the s...


    pub_type: 杂志文章


    authors: Keane JR,Gamal R

    更新日期:1993-08-01 00:00:00

  • Intratumoral Heterogeneity of Glioblastoma Infiltration Revealed by Joint Histogram Analysis of Diffusion Tensor Imaging.

    abstract:BACKGROUND:Glioblastoma is a heterogeneous disease characterized by its infiltrative growth, rendering complete resection impossible. Diffusion tensor imaging (DTI) shows potential in detecting tumor infiltration by reflecting microstructure disruption. OBJECTIVE:To explore the heterogeneity of glioblastoma infiltrati...


    pub_type: 杂志文章


    authors: Li C,Wang S,Yan JL,Piper RJ,Liu H,Torheim T,Kim H,Zou J,Boonzaier NR,Sinha R,Matys T,Markowetz F,Price SJ

    更新日期:2019-10-01 00:00:00

  • Clinical evaluation and follow-up outcome of diffusion tensor imaging-based functional neuronavigation: a prospective, controlled study in patients with gliomas involving pyramidal tracts.

    abstract:OBJECTIVE:To evaluate diffusion tensor imaging (DTI)-based functional neuronavigation in surgery of cerebral gliomas with pyramidal tract (PT) involvement with respect to both perioperative assessment and follow-up outcome. METHODS:A prospective, randomized controlled study was conducted between 2001 and 2005. A conse...


    pub_type: 杂志文章,随机对照试验


    authors: Wu JS,Zhou LF,Tang WJ,Mao Y,Hu J,Song YY,Hong XN,Du GH

    更新日期:2007-11-01 00:00:00

  • Results of nerve transfers to the musculocutaneous and axillary nerves.

    abstract:OBJECTIVE:Nerve transfers in cases of brachial plexus traction injuries with avulsion of spinal nerve roots or irreparable proximal lesions of spinal nerves have been attempted using a variety of donor nerves. The purpose of this study was to analyze the results of nerve transfers to the musculocutaneous and axillary n...


    pub_type: 临床试验,杂志文章,评审


    authors: Samardzić M,Rasulić L,Grujicić D,Milicić B

    更新日期:2000-01-01 00:00:00

  • Thoracoscopic microdiscectomy.

    abstract::The thorascopic approach for the microsurgical removal of herniated thoracic discs is described, and perioperative management is also discussed. The microsurgical techniques used for decompression of the spinal canal in the thoracic spine are presented in detail. The diagnostic imaging, surgical positioning, approach,...


    pub_type: 杂志文章


    authors: Oskouian RJ Jr,Johnson JP,Regan JJ

    更新日期:2002-01-01 00:00:00

  • The Camino intracranial pressure sensor: is it optimal technology? An internal audit with a review of current intracranial pressure monitoring technologies.

    abstract:OBJECTIVE:To audit the reliability of the Camino intracranial pressure (ICP) sensor (Camino Laboratories, San Diego, CA) in our clinical practice as part of a continuing quality assurance program, and to assess its relative usefulness as compared with currently available ICP monitoring technologies that we reviewed. D...


    pub_type: 杂志文章


    authors: Piper I,Barnes A,Smith D,Dunn L

    更新日期:2001-11-01 00:00:00

  • Endovascular recanalization with balloon angioplasty and stenting of an occluded occipital sinus for treatment of intracranial venous hypertension: technical case report.

    abstract:OBJECTIVE AND IMPORTANCE:Dural sinus thrombosis can lead to intracranial venous hypertension and can be complicated by intracranial hemorrhage. We present a case report of a patient who underwent endovascular recanalization and stenting of a thrombosed occipital sinus. CLINICAL PRESENTATION:A 13-year-old patient with ...


    pub_type: 杂志文章


    authors: Malek AM,Higashida RT,Balousek PA,Phatouros CC,Smith WS,Dowd CF,Halbach VV

    更新日期:1999-04-01 00:00:00

  • The epidemiology of urban pediatric neurological trauma: evaluation of, and implications for, injury prevention programs.

    abstract:OBJECTIVE:To describe the incidence and causes of pediatric head, spinal cord, and peripheral nerve injuries in an urban setting and to assess the implications of these data for injury prevention programs. METHODS:Pediatric deaths and hospital admissions secondary to neurological trauma included in the Northern Manhat...


    pub_type: 杂志文章


    authors: Durkin MS,Olsen S,Barlow B,Virella A,Connolly ES Jr

    更新日期:1998-02-01 00:00:00

  • Optic nerve arteriovenous malformation causing optic apoplexy: case report.

    abstract:OBJECTIVE AND IMPORTANCE:Vascular malformations in the optic pathway are rare. Only one case of pathologically confirmed arteriovenous malformation (AVM) of the optic nerve has been reported previously. We document the case of a patient with an optic nerve AVM who presented with optic apoplexy that was diagnosed with t...


    pub_type: 杂志文章,评审


    authors: Muragaki Y,Ujiie H,Ohno M,Kubo O,Hori T

    更新日期:2002-10-01 00:00:00

  • Anterolateral C1-C2 transarticular fixation for atlantoaxial arthrodesis: landmarks, working area, and angles of approach.

    abstract:BACKGROUND:An alternative route must be used for atlantoaxial arthrodesis to avoid the risks of transoral route or when posterior approaches are contraindicated. OBJECTIVE:To assess relevant quantitative anatomic parameters for C1-C2 anterolateral transarticular fixation and to demonstrate the nuances of an anterolate...


    pub_type: 杂志文章


    authors: Cavalcanti DD,Agrawal A,Garcia-Gonzalez U,Crawford NR,Tavares PL,Theodore N,Sonntag VK,Preul MC

    更新日期:2010-09-01 00:00:00

  • Guest Editorial: An Update on Stroke Intervention.

    abstract::Endovascular treatment for acute ischemic stroke has changed remarkably over the past decade. Beginning with IA thrombolytic administration, endovascular strategies have evolved to include aspiration, self-expanding intracranial stents, and now retrievable stents. With the recent publication of 5 randomized, controlle...


    pub_type: 社论


    authors: Munich SA,Mokin M,Snyder KV,Siddiqui AH,Hopkins LN,Levy EI

    更新日期:2015-09-01 00:00:00

  • Gamma knife surgery for facial nerve schwannomas.

    abstract:OBJECTIVE:Radical resection of facial nerve schwannomas classically implies a high risk of severe facial palsy. Owing to the rarity of facial palsy after gamma knife surgery (GKS) of vestibular schwannomas, functional evaluation after GKS seems rational in this specific group of patients. To our knowledge, no previous ...


    pub_type: 杂志文章


    authors: Litre CF,Gourg GP,Tamura M,Mdarhri D,Touzani A,Roche PH,Régis J

    更新日期:2007-05-01 00:00:00

  • Bilateral homonymous hemianopsia due to tentorial herniation, with sparing of central vision: case report.

    abstract::Cases of complete bilateral homonymous hemianopsia with sparing of central vision that are caused by bilateral tentorial herniation are extremely rare. We describe one such case resulting from severe head trauma, the first to be reported in which magnetic resonance images showed clear evidence of the responsible lesio...


    pub_type: 杂志文章


    authors: Tanaka R,Miyasaka Y,Yada K,Mukuno K

    更新日期:1992-10-01 00:00:00

  • Comparison of clinical result between microsurgical and direct visual intracranial aneurysm surgery.

    abstract::A retrospective study of 119 operative procedures for intracranial aneurysm was performed to compare the clinical result with microsurgical technique vs. that with standard instruments and without magnification; the operative technique was the major variable. The study demonstrated more normal patients, less intraoper...


    pub_type: 杂志文章


    authors: Leibrock LG,Epstein MH,Long D

    更新日期:1982-04-01 00:00:00

  • High dose versus low dose dexamethasone in experimental epidural spinal cord compression.

    abstract::A compound of methylcellulose-silicone expanding progressively over a 1-week period by moisture absorption was implanted in the midthoracic epidural space of 17 Sprague Dawley adult rats. When the animals became paraplegic 6.3 +/- 1.6 days later, they were randomized into three groups: untreated control (n = 5), high ...


    pub_type: 杂志文章


    authors: Delattre JY,Arbit E,Rosenblum MK,Thaler HT,Lau N,Galicich JH,Posner JB

    更新日期:1988-06-01 00:00:00

  • Acute median nerve compression at the distal forearm caused by a thrombosed aneurysm of an epineural vessel: case report.

    abstract::The case of a patient with a 2-day history of symptoms suggesting acute carpal tunnel syndrome is presented. However, an urgent electroneurographic examination revealed median nerve compression at the forearm and magnetic resonance imaging confirmed compression by a mass proximal to the carpal tunnel. Surgical explora...


    pub_type: 杂志文章


    authors: Fricker R,Fuhr P,Pippert H,Troeger H

    更新日期:1996-01-01 00:00:00

  • Simvastatin attenuates microglial cells and astrocyte activation and decreases interleukin-1beta level after traumatic brain injury.

    abstract:OBJECTIVE:Our previous studies demonstrated that simvastatin promotes neurological functional recovery after traumatic brain injury (TBI) in rat; however, the underlying mechanisms remain poorly understood. The purpose of this study was to investigate the anti-inflammatory effect of simvastatin by measuring the level o...


    pub_type: 杂志文章


    authors: Li B,Mahmood A,Lu D,Wu H,Xiong Y,Qu C,Chopp M

    更新日期:2009-07-01 00:00:00

  • Design and Physical Properties of 3-Dimensional Printed Models Used for Neurointervention: A Systematic Review of the Literature.

    abstract:BACKGROUND:Three-dimensional (3D) printing has revolutionized training, education, and device testing. Understanding the design and physical properties of 3D-printed models is important. OBJECTIVE:To systematically review the design, physical properties, accuracy, and experimental outcomes of 3D-printed vascular model...


    pub_type: 杂志文章


    authors: Waqas M,Mokin M,Lim J,Vakharia K,Springer ME,Meess KM,Ducharme RW,Ionita CN,Nagesh SVS,Gutierrez LC,Snyder KV,Davies JM,Levy EI,Siddiqui AH

    更新日期:2020-09-15 00:00:00

  • Combined pretemporal and endovascular approach to the cavernous sinus for the treatment of carotid-cavernous dural fistulae: technical case report.

    abstract:OBJECTIVE AND IMPORTANCE:The endovascular treatment of carotid-cavernous dural fistulae is becoming the prominent treatment modality for these lesions. The intractability of these lesions and their tendency to recur, especially after previous endovascular treatment sessions, exhausts the available routes and tends to p...


    pub_type: 杂志文章


    authors: Krisht AF,Burson T

    更新日期:1999-02-01 00:00:00

  • Infants with medulloblastoma: a single institution review of survival.

    abstract::Although the prognoses of children with medulloblastoma have improved dramatically over the last several decades, the reported survival for very young children with this tumor remains poor. We undertook a retrospective review of patients less than 36 months of age at the time of the diagnosis of a medulloblastoma who ...


    pub_type: 杂志文章


    authors: Geyer R,Levy M,Berger MS,Milstein J,Griffin B,Bleyer WA

    更新日期:1991-11-01 00:00:00

  • Repeat transsphenoidal surgery for the treatment of remaining or recurring pituitary tumors in acromegaly.

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    pub_type: 杂志文章


    authors: Yamada S,Fukuhara N,Oyama K,Takeshita A,Takeuchi Y

    更新日期:2010-10-01 00:00:00