Abstract：
:We performed two-phase helical CT in 31 patients with juxtasellar region and cerebellopontine angle tumours to evaluate its usefulness in differentiating meningiomas from neurogenic tumours. After the intravenous injection of 90 ml contrast medium at 3 ml/s, axial helical images were obtained with delays of 30 and 120 s. After the delayed axial images, we acquired coronal images. Changes in attenuation were assessed visually and quantitatively (by comparing the attenuation in Hounsfield units). There were 17 meningiomas and 14 neurogenic tumours, all pathologically proven. Two-phase helical CT showed a decrease in attenuation in 15 (88%) meningiomas and an increase in 14 (100%) neurogenic tumours from early to delayed axial images. Coronal images showed a decrease in attenuation in all 17 meningiomas and an increase in 13 (93%) of the neurogenic tumours. The mean HU and their ratios were significantly different between meningiomas and neurogenic tumours.
journal_name
Neuroradiologyjournal_title
Neuroradiologyauthors
Ryoo JW,Na DG,Woo JY,Park K,Kim HD,Choi DS,Byun HSdoi
10.1007/s002340100539subject
Has Abstractpub_date
2001-08-01 00:00:00pages
637-43issue
8eissn
0028-3940issn
1432-1920journal_volume
43pub_type
杂志文章相关文献
NEURORADIOLOGY文献大全abstract：:A case of a vertical fracture of the anterior arch of the atlas associated with a congenital cleft of the posterior arch of the same vertebra is reported. Such an association has not previously been described in the literature. X-Ray computed tomography is an excellent exam for visualizing this region and for easily d...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/BF00404112
更新日期：1988-01-01 00:00:00
abstract：:We evaluated the "dural tail" associated with 48 intracranial meningiomas on fluid-attenuated inversion-recovery (FLAIR) and contrast-enhanced T1-weighted images. In 30 (62.5%), a dural tail was observed on contrast-enhanced T1-weighted images, and thickening of the dura mater and abnormal signal were identified in th...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-003-1152-4
更新日期：2004-02-01 00:00:00
abstract：:Giant cell tumors are uncommon primary bone tumors. They primarily occur in the long bones. Giant cell tumors are extremely rare in the skull and head and neck. When it does occur, the maxilla and mandible are the common sites to be involved. We described two cases of giant cell tumor in the temporal bone. In the nonc...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s002340050753
更新日期：1999-04-01 00:00:00
abstract：PURPOSE:The aim of this study was to describe imaging markers of decision-making under uncertain conditions in normal individuals, in order to provide baseline activity to compare to impaired decision-making in pathological states. METHODS:In this cross-sectional study, 19 healthy subjects ages 18-35 completed a novel...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-017-1949-1
更新日期：2018-01-01 00:00:00
abstract：INTRODUCTION:The pathogenesis of delayed cerebral ischemia (DCI) after subarachnoid hemorrhage (SAH) is unclear. We assessed whether DCI relates to focal or global cerebral perfusion on admission and on follow-up imaging. MATERIALS AND METHODS:Twenty-seven SAH patients underwent computed tomography (CT) perfusion (CTP...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-008-0416-4
更新日期：2008-09-01 00:00:00
abstract：BACKGROUND:As adequate therapy for retinoblastoma in young children depends on infiltration of extra-retinal structures, diagnostic modalities play an essential role. METHODS:In this widely extended study, 80 children with retinoblastoma were studied with MRI (standard fat-suppressed Gd-enhanced T1, T2 thin-slice sequ...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-004-1316-x
更新日期：2005-01-01 00:00:00
abstract：:We compared MRI studies of the sellar area and embryological and adult histological studies of the cavernous sinuses and pituitary fossa. MRI studies were performed in 50 normal subjects with coronal sections using a fast inversion-recovery sequence to demonstrate the dural walls of the cavernous sinus and pituitary f...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s002340050653
更新日期：1998-10-01 00:00:00
abstract：:A verified case of duplicate origin of the left vertebral artery in association with a large aneurysm arising from the aortic arch immediately distal to the left subclavian artery is presented. An anomalous left vertebral artery arises directly from the aortic arch between the left common carotid and subclavian arteri...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/BF00327442
更新日期：1978-03-29 00:00:00
abstract：:The rate of side effects, the results of EMG, EEG and CSF changes after radiculography, the rates of late leptomeningeal changes and the details of the hyperosmolality following the ionic contrast media are recorded and discussed. In conclusion rules are presented for the choice of contrast medium and the examination ...
journal_title：Neuroradiology
pub_type： 临床试验,杂志文章
doi：10.1007/BF00345269
更新日期：1978-11-24 00:00:00
abstract：:A 35-year-old woman presented with a 6-month history of intermittent headaches, vomiting and dizziness. CT showed a plaque-like mass with tiny calcifications along the surface of the left frontal lobe. The mass exhibited heterogeneous enhancement with a few low-density foci. Underlying sulcal obliteration and enhancem...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/BF00607273
更新日期：1996-07-01 00:00:00
abstract：:A rare case of aseptic thrombosis of the right vein of Labbé in a young woman is reported. Cerebral venous thrombosis was suggested by computed tomography and confirmed by angiography. Mild left-sided neurological deficits resolved almost completely. The combination of a nonspecific clinical picture with an atypical l...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/BF00588494
更新日期：1993-01-01 00:00:00
abstract：INTRODUCTION:The aim of this study is to report our early clinical experience using C-arm cone beam computed tomography with fluoroscopic overlay for image guidance during percutaneous needle procedures of the spine and pelvis. METHODS:Twelve consecutive patients (four female and eight male patients; mean age, 64 year...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-011-0866-y
更新日期：2012-03-01 00:00:00
abstract：:We report two cases showing duplicate origin of the vertebral artery; one with fenestaration of the distal portion of the left vertebral artery. ...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/BF00451774
更新日期：1987-01-01 00:00:00
abstract：PURPOSE:The purpose of this study was to examine advanced diffusion-weighted magnetic resonance imaging (DW-MRI) models for differentiation of low- and high-grade tumors in the diagnosis of pediatric brain neoplasms. METHODS:Sixty-two pediatric patients with various types and grades of brain tumors were evaluated in a...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-017-1865-4
更新日期：2017-08-01 00:00:00
abstract：:Our purpose was to investigate the role of diffusion imaging (DI) in central nervous system (CNS) infections in pediatric patients. It was anticipated that DI would be more sensitive than conventional MRI in the detection of the infarctive complications of infection, and possibly, in the detection of the infectious pr...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s002340100625
更新日期：2001-12-01 00:00:00
abstract：INTRODUCTION:The purpose of this experimental phantom study was to compare radiation doses imparted to patients undergoing classical two-plane digital subtraction angiography (2-plane DSA) and 3D rotational angiography in interventional neuroradiology. METHODS:Thermoluminescence dosimeter (TLD) measurements were perfo...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-016-1671-4
更新日期：2016-07-01 00:00:00
abstract：:Brain vascular malformations are dynamic disorders. Although mostly considered to be of congenital origin, the improvement of clinical imaging and vasculogenesis knowledge has shown that they might also result from a biological dysfunction of the remodeling process after birth. Venous occlusive disease and ishemia may...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-003-0971-7
更新日期：2005-01-01 00:00:00
abstract：:A new technique for surgical construction of experimental lateral saccular aneurysms on the common carotid artery of swine is described. It involves end-to-side suturing of an isolated segment of vein to an artery. During a short period of parent artery clamping, an elliptical arteriotomy is fashioned through the open...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/BF00593518
更新日期：1994-10-01 00:00:00
abstract：INTRODUCTION:Our aim was to examine the feasibility of a computed tomographic angiography (CTA) protocol using a reduced dose of high-concentration contrast material on a 16 multidetector-row system to visualize both cervical and cerebral arteries in one session. METHODS:In 31 consecutive patients, we performed CTA co...
journal_title：Neuroradiology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00234-009-0611-y
更新日期：2010-04-01 00:00:00
abstract：PURPOSE:Brain volume changes (BVC) on therapy in MS are being considered as predictor for treatment response at an individual level. We ought to assess whether adding BVC as a factor to monitor interferon-beta response improves the predictive ability of the (no) evidence of disease activity (EDA-3) and Río score (RS-3)...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-020-02604-8
更新日期：2020-11-25 00:00:00
abstract：:The use of NMR inversion-recovery (IR) sequences to demonstrate brain anatomy is illustrated. The high level of grey-white matter contrast is of value in localising anatomical structures and demonstrating myelination during childhood. While the resemblance of IR scans to gross anatomical sections in different planes i...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/BF00455729
更新日期：1983-01-01 00:00:00
abstract：:We report a case of transient neurologic toxicity secondary to tacrolimus. The clinical and imaging findings are reported and their subsequent regression after interruption of therapy in the patient following a bone-marrow transplant is also described. The etiology of the neurotoxicity and its analogy with other immun...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s002340000298
更新日期：2000-09-01 00:00:00
abstract：:Seven patients presented with neonatal arteriovenous malformation and vein of Galen aneurysms. Six had a large degree of vascular steal demonstrated by cerebral angiography and all had significant parenchymal loss on initial CT. Angiographically, the steal affected the ophthalmic artery and branches of the middle and ...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/BF00327491
更新日期：1984-01-01 00:00:00
abstract：INTRODUCTION:Intracranial developmental venous anomalies (DVAs) are considered benign vascular dispositions; they are asymptomatic in the vast majority of cases. They represent extreme variations of the venous drainage and may rarely be responsible for focal venous ischemia leading to neurological dysfunction. The aim ...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-011-0890-y
更新日期：2012-05-01 00:00:00
abstract：PURPOSE:CT attenuation of ischemic brain reduces with time after stroke onset. We aimed to quantify this relationship and test the feasibility and accuracy of estimating stroke onset time using only CT attenuation of visible ischemic lesions, the CT-Clock Tool. METHODS:We selected CT scans with ischemic lesions repres...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-020-02591-w
更新日期：2020-10-30 00:00:00
abstract：PURPOSE:Recently, multiple randomised controlled trials showed efficacy of endovascular treatment over traditional care in patients with acute ischemic stroke due to an intracranial anterior circulation occlusion. Internal carotid artery (ICA) dissection with a concomitant intracranial occlusion is a rare but important...
journal_title：Neuroradiology
pub_type： 杂志文章,评审
doi：10.1007/s00234-017-1850-y
更新日期：2017-07-01 00:00:00
abstract：:Epidural lipomatosis may be unassociated with steroid use and should be considered in the differential diagnosis of lumbar radiculopathy. This may cause widening of the spinal canal on plain film and complete block on myelography. CT or MRI is diagnostic. ...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/BF00698854
更新日期：1989-01-01 00:00:00
abstract：:Hereditary spastic paraplegia (HSP) is a genetically heterogeneous group of neurodegenerative disorders characterized by progressive lower extremity weakness and spasticity. HSP pathology involves axonal degeneration that is most pronounced in the terminal segments of the longest descending (pyramidal) and ascending (...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-005-1415-3
更新日期：2005-10-01 00:00:00
abstract：INTRODUCTION:Rarely in the anterior circulation, an anastomosis of the carotid and anterior cerebral arteries occurs when an anomalous branch arises from the ophthalmic segment of the internal carotid artery and anastomoses with the A1-A2 junction of the anterior communicating artery. Right-side predominance is known. ...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/s00234-011-0847-1
更新日期：2012-01-01 00:00:00
abstract：:The clinical and computer tomographic (CT) findings in eight patients with pathological evidence of cerebral gliosis and analyzed. CT findings do not permit differentiation of gliosis from other neoplastic and non-neoplastic conditions. ...
journal_title：Neuroradiology
pub_type： 杂志文章
doi：10.1007/BF02100155
更新日期：1981-01-01 00:00:00
