abstract：:The purpose of this study was to assess the value of MRI, MR spectroscopy (MRS) and intra-arterial angiography in the preoperative diagnosis of extra-axial dural-based masses. We prospectively studied 54 patients who underwent preoperative MRI, MRS and angiography. Histologically there were 50 meningiomas and four dur...

journal_title：Neuroradiology

authors： Bendszus M,Warmuth-Metz M,Burger R,Klein R,Tonn JC,Solymosi L

更新日期：2001-04-01 00:00:00

abstract：:Occipital condylar fractures (OCF) are rare and have a high mortality rate. We report a patient with OCF who presented with acute hydrocephalus and died from diffuse vasospasm secondary to vertebral artery injury. A 45-year-old man fell 20 feet from a deer stand and landed on his head. CT showed a type III OCF continu...

journal_title：Neuroradiology

authors： Menéndez JA,Başkaya MK,Day MA,Nanda A

更新日期：2001-03-01 00:00:00

abstract：:We investigated the nature and extent of brain involvement in myotonic dystrophy (DM), examining possible T2 relaxation abnormalities in the brain of 20 patients with adult-onset DM and 20 sex- and age-matched normal controls. Brain MRI was performed at 0.5 T, and T2 values were calculated from signal intensity in two...

journal_title：Neuroradiology

authors： Di Costanzo A,Di Salle F,Santoro L,Bonavita V,Tedeschi G

更新日期：2001-03-01 00:00:00

abstract：:Sinus thrombosis has rarely been associated with closed head injury; more often, thrombosis of the sigmoid or transverse sinus is caused by otogenic inflammations or tumours, or occurs during pregnancy. Symptoms are frequently vague, while untreated thrombus progression may be fatal due to venous congestion and infarc...

journal_title：Neuroradiology

authors： Brors D,Schäfers M,Schick B,Dazert S,Draf W,Kahle G

更新日期：2001-02-01 00:00:00

abstract：:We report three adenomatous middle-ear tumours, an adenoma, an adenocarcinoma and a semimalignant adenomatous tumour, with special attention to CT and MRI findings. In all cases we found small intratympanic masses in which the ossicles were embedded. All showed contrast enhancement and similar signal intensity as brai...

journal_title：Neuroradiology

authors： Maintz D,Stupp C,Krueger K,Wustrow J,Lackner K

更新日期：2001-01-01 00:00:00

abstract：:We present the MRI features of the lumbar spine in a patient with ochronosis. ...

journal_title：Neuroradiology

authors： Choudhury R,Rajamani SS,Rajshekhar V

更新日期：2000-12-01 00:00:00

abstract：:We retrospectively reviewed the MRI findings in 28 patients with an intramedullary spinal cord ependymoma who underwent surgical treatment. There were 26 tumours in the cervical and two in the thoracic spine. T1- and T2-weighted and contrast-enhanced images at 1.5 T were obtained in all cases. T1-weighted imaging show...

journal_title：Neuroradiology

authors： Miyazawa N,Hida K,Iwasaki Y,Koyanagi I,Abe H

更新日期：2000-11-01 00:00:00

abstract：:The tick-borne encephalitis (TBE) virus gives rise to epidemic encephalitis. Mild forms usually manifest as influenza-like episodes or are clinically silent. MRI is usually normal in TBE. We describe severe TBE in a patient who presented with fever and altered mental status after a tick bite and a specific antibody re...

journal_title：Neuroradiology

authors： Alkadhi H,Kollias SS

更新日期：2000-10-01 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

authors： Bova D,Shownkeen H,Goldberg K,Horowitz S,Azar-Kia B

更新日期：2000-09-01 00:00:00

abstract：:We report MRI and proton MR spectroscopy (MRS) findings in a 12-month-old girl with Epstein-Barr virus encephalitis. CT and MRI showed focal lesions in the basal ganglia. MRS of the lesions showed decreased N-acetyl aspartate and elevation of some amino acids, indicating an infectious rather than ischemic etiology. Th...

journal_title：Neuroradiology

authors： Cecil KM,Jones BV,Williams S,Hedlund GL

更新日期：2000-08-01 00:00:00

abstract：:Our purpose was to describe the range of MRI findings in infectious and neoplastic involvement of the spine and spinal cord in symptomatic patients with the acquired immunodeficiency syndrome (AIDS). MRI studies in 55 patients with AIDS and neurological signs and symptoms thought to be related to the spine or spinal c...

journal_title：Neuroradiology

authors： Thurnher MM,Post MJ,Jinkins JR

更新日期：2000-08-01 00:00:00

abstract：:A patient presented with the clinical features of a brain stem infarct. MRI confirmed changes of infarction but also revealed an unusual lesion in the left cerebellopontine angle cistern. The evolution of this lesion on MRI, together with angiographic changes, indicated a dissecting aneurysm of the left anterior infer...

journal_title：Neuroradiology

authors： Hancock JH,Millar JS

更新日期：2000-07-01 00:00:00

abstract：:Our purpose was to investigate nonhaemorrhagic infarcts with a short T1 in the cerebellum and basal ganglia. We carried out repeat MRI on 12 patients with infarcts in the cerebellum or basal ganglia with a short T1. Cerebellar cortical lesions showed high signal on T1-weighted spin-echo images beginning at 2 weeks, wh...

journal_title：Neuroradiology

authors： Komiyama M,Nakajima H,Nishikawa M,Yasui T

更新日期：2000-07-01 00:00:00

abstract：:We present two rare lumbar lesions with similar MRI features: high signal on T1-weighted and proton density images and low signal on T2-weighted images; a melanotic schwannoma, and a giant-cell tumour-like lesion. Melanin in the first case and haemosiderin and metahaemoglobin in the second were responsible for the MRI...

journal_title：Neuroradiology

authors： Aprile I,Scott CA,Cervesato D,Beltrami CA,Meo A,Fabris G

更新日期：2000-06-01 00:00:00

abstract：:Many studies of white matter high signal (WMHS) on T2-weighted MRI have disclosed that it is related to cerebral ischaemia and to brain atrophy. Atrophy of the corpus callosum (CC) has also been studied in relation to ischaemia. Our objective was to test the hypothesis that CC atrophy could be due to ischaemia. We the...

journal_title：Neuroradiology

authors： Meguro K,Constans JM,Courtheoux P,Theron J,Viader F,Yamadori A

更新日期：2000-06-01 00:00:00

abstract：:Telephone calls were made to 1251 consecutive patients one day following outpatient myelography. Data were available on 518 patients punctured with 22-gauge (g) (large-diameter) and 465 with 25-g (small-diameter) spinal needles. We surveyed 48 academic and private practice groups regarding needle diameter use in myelo...

journal_title：Neuroradiology

authors： Woodcock RJ,Marx WF,Johnson RM,Lowe JM,Lipper MH,Kallmes DF

更新日期：2000-05-01 00:00:00

abstract：:We performed a blinded multireader study comparing MR angiography (MRA) with digital subtraction angiography (DSA) in 34 prospectively recruited patients who presented with acute subarachnoid haemorrhage (SAH). Two observers independently reviewed the MRA and DSA studies some months after clinical presentation. Presen...

journal_title：Neuroradiology

authors： Jäger HR,Mansmann U,Hausmann O,Partzsch U,Moseley IF,Taylor WJ

更新日期：2000-05-01 00:00:00

abstract：:We report aqueduct compression by venous ectasia in a 65-year-old man with a dural arteriovenous fistula in the posterior cranial fossa draining into a superior vermian vein. Conventional and phase-contrast MRI showed the aqueduct stenosis and the causative dilated vein. ...

journal_title：Neuroradiology

authors： Brugières P,Combes C,el-Khoury C,Decq P,Heine P,Meyrignac C,Gaston A

更新日期：2000-04-01 00:00:00

abstract：:We report a case of cerebral air embolism resulting from accidental air infection during cerebral angiography. A 60-year-old man was accidentally injected with air via the left subclavian artery. Angiography demonstrated air within the basilar artery. The patient showed signs of posterior circulation ischaemia (confus...

journal_title：Neuroradiology

authors： Sayama T,Mitani M,Inamura T,Yagi H,Fukui M

更新日期：2000-03-01 00:00:00

abstract：:We report two boys diagnosed as having herpangina and hand-foot-mouth disease complicated by monoplegia during the outbreak enterovirus infection in Taiwan in 1998. Enterovirus 71 was identified in the stool and throat swab; neither polio nor Coxsackie viruses was identified. MRI showed unilateral lesions in the anter...

journal_title：Neuroradiology

authors： Shen WC,Tsai C,Chiu H,Chow K

更新日期：2000-02-01 00:00:00

abstract：:Diffusion-weighted MRI (DWI) is extremely sensitive to motion of the object being examined. Pulse triggering and navigator echo correction are methods for reducing motion artefacts which can be combined with conventional DWI sequences. Implementation of these methods in imaging sequences with a readout of one, three, ...

journal_title：Neuroradiology

authors： Dietrich O,Heiland S,Benner T,Sartor K

更新日期：2000-02-01 00:00:00

abstract：:I report a 30-year-old woman with congenital cerebral venous dysgenesis with absence of the internal cerebral and basal veins and most of the cortical veins. Unlike the more common bilateral picture, she had involvement only on the left side, which delayed presentation and gave relatively mild symptoms. The embryologi...

journal_title：Neuroradiology

authors： Chen CJ

更新日期：2000-01-01 00:00:00

abstract：:We studied the changes in brain water diffusion in childhood as seen on diffusion-weighted MRI in 30 children from 1 day of life to 17 years to provide a data base and to investigate the correlation of diffusion changes with known patterns of white matter maturation. The apparent diffusion coefficient (ADC) and appare...

journal_title：Neuroradiology

authors： Morriss MC,Zimmerman RA,Bilaniuk LT,Hunter JV,Haselgrove JC

更新日期：1999-12-01 00:00:00

abstract：:Our purpose was to assess the role of serial CT in recently traumatized patients with clinically stable extra-axial intracranial hematomas (EACH) and a midline shift of less than 0.5 cm. A retrospective review of 91 imaging studies in 41 patients (with 45 EACH) was done to assess the time between trauma and CT; the pr...

journal_title：Neuroradiology

authors： Muszynski CA,Hayman LA,Weingarten K,Prow HW,Cole JW,Contant CF

更新日期：1999-12-01 00:00:00

abstract：:Cerebral alveolar echinococcosis is rare. We report a case with multiple intracranial masses which show cauliflower-like contrast enhancement pattern on MRI. The lesions originated from hepatic involvement with invasion of the inferior vena cava. ...

journal_title：Neuroradiology

authors： Tunaci M,Tunaci A,Engin G,Ozkorkmaz B,Ahishali B,Rozanes I

更新日期：1999-11-01 00:00:00

abstract：:We examined the diagnostic use of isotropic diffusion-weighted (DW) MRI in 140 consecutive patients suspected of or diagnosed as having an ischaemic stroke. Isotropic DW imaging could demonstrate the lesion responsible for the clinical deficit in patients with multiple cerebral infarcts at an early stage, even small l...

journal_title：Neuroradiology

authors： Kumon Y,Zenke K,Kusunoki K,Oka Y,Sadamoto K,Ohue S,Ohta S,Sakaki S

更新日期：1999-10-01 00:00:00

abstract：:We reviewed the imaging of four pathologically proven calvarial eosinophil granulomas. The diameter of the lesions ranged from 13 to 40 mm; three were biconvex, but the other had a collar-stud appearance. Two lesions were in the frontal and two in the parietal bone. On bone-window CT, a bevelled edge was seen in three...

journal_title：Neuroradiology

authors： Okamoto K,Ito J,Furusawa T,Sakai K,Tokiguchi S

更新日期：1999-10-01 00:00:00

abstract：:Although aneurysms are widely considered to be of congenital origin there is still debate as to whether some at least might be formed de novo during life. A review of all 49 reported cases plus one previously unpublished case reveals common clinical features and might aid in the management of this group of patients. S...

journal_title：Neuroradiology

authors： Tonn J,Hoffmann O,Hofmann E,Schlake HP,Sörensen N,Roosen K

更新日期：1999-09-01 00:00:00

abstract：:We report an intramedullary angiolipoma with spinal cord compression studied by MRI, angiography and CT. Angiolipomas of the spine are rare benign tumours containing vascular and mature adipose elements. They are epidural in more than 90 % of the cases; only three cases of intramedullary angiolipoma are described. The...

journal_title：Neuroradiology

authors： Klisch J,Spreer J,Bloss HG,Baborie A,Hubbe U

更新日期：1999-08-01 00:00:00

abstract：:We report a 9-year-old boy with a sinonasal ossifying fibroma, probably congenital, with atypical findings on CT and MRI. CT revealed a soft-tissue density mass in the sphenoethmoidal sinuses, nasal cavity and right maxillary sinus with a few foci of calcification and with remodelling and destruction of the adjacent f...

journal_title：Neuroradiology

authors： Engelbrecht V,Preis S,Hassler W,Lenard HG

更新日期：1999-07-01 00:00:00

abstract：:MRI and phase-contrast MR angiography (PC MRA) were obtained in 13 patients with angiographically confirmed intracranial dural arteriovenous fistulae (DAVF). Three- and two-dimensional PC MRA was obtained with low (6-20 cm/s) and high (> 40 cm/s) velocity encoding along the three main body axes. MRI showed focal or di...

journal_title：Neuroradiology

authors： Cellerini M,Mascalchi M,Mangiafico S,Ferrito GP,Scardigli V,Pellicanò G,Quilici N

更新日期：1999-07-01 00:00:00

abstract：:In polyarteritis nodosa involvement of the central nervous system is infrequent; small cerebral infarcts are the most common neuroradiological finding. We report a 10-year-old boy with polyarteritis nodosa and intracranial haemorrhage. MRI showed an intracerebral haemorrhage. Angiography revealed two peripheral aneury...

journal_title：Neuroradiology

authors： Oran I,Memis A,Parildar M,Yunten N

更新日期：1999-06-01 00:00:00

abstract：:Our objective was to determine the visibility of the cisternal segment of the normal abducens nerve using a three-dimensional Fourier-Transform constructive interference in the steady state (3DFT-CISS) sequence. Its visibility was rated in 150 patients without clinical evidence of abducens nerve disturbance. Axial 1-m...

journal_title：Neuroradiology

authors： Lemmerling M,De Praeter G,Mortelé K,Vyt S,Vanzieleghem B,Coolens D,Kunnen M

更新日期：1999-05-01 00:00:00

abstract：:We studied the natural history of canine side-wall experimental aneurysms to determine the incidence of spontaneous aneurysm thrombosis, to serve as control data for future studies focusing on development of aneurysm occlusion devices. Bilateral common carotid artery vein patch aneurysms were surgically created in eig...

journal_title：Neuroradiology

authors： Kallmes DF,Altes TA,Vincent DA,Cloft HJ,Do HM,Jensen ME

更新日期：1999-05-01 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

authors： Lee HJ,Lum C

更新日期：1999-04-01 00:00:00

abstract：:To assess the interobserver variability of cerebral-atrophy measures on CT, three investigators measured the bicaudate ratio (BCR) and the sylvian-fissure ratio (SFR) on 20 CT studies of patients with ischaemic stroke. The intraclass correlation coefficient of BCR measurements was 0.82 [95% confidence interval (CI) 0....

journal_title：Neuroradiology

authors： van Zagten M,Kessels F,Boiten J,Lodder J

更新日期：1999-04-01 00:00:00

abstract：:We assessed high-resolution MRI of the lacrimal system with conjunctival contrast enhancement in patients with suspected stenosis. We studied 18 patients with epiphora affecting 22 eyes, using a surface coil, before and after conjunctival and intravenous Gd-DTPA. Stenosis or obstruction of the ducts was found in 18 of...

journal_title：Neuroradiology

authors： Hoffmann KT,Hosten N,Anders N,Stroszczynski C,Liebig T,Hartmann C,Felix R

更新日期：1999-03-01 00:00:00

abstract：:We compared CT and MRI obtained within the first 3 h of onset of a cerebral infarct. Echo-planar diffusion-weighted MRI delineated the infarcted areas most clearly, and subtle low-density areas on CT were consistent with those shown to be abnormal by diffusion-weighted MR. The signal changes of affected areas on fast ...

journal_title：Neuroradiology

authors： Maeda M,Abe H,Yamada H,Ishii Y

更新日期：1999-03-01 00:00:00

abstract：:The neuroimaging findings in an infant with hypernatremic dehydration are presented. Brain parenchymal haemorrhage and extensive multiple infarcts were present in the acute stage. Follow-up CT showed bilateral, symmetrical changes presumed to indicate extrapontine myelinolysis in the thalamus and globus pallidus. MRI ...

journal_title：Neuroradiology

authors： AlOrainy IA,O'Gorman AM,Decell MK

更新日期：1999-02-01 00:00:00

abstract：:We describe the use of diffusion-weighted imaging and perfusion MRI using a contrast-medium bolus in the preoperative investigation for young man presenting with a cerebral ischaemic episode as a manifestation of moyamoya disease. ...

journal_title：Neuroradiology

authors： Adams WM,Laitt RD,Li KL,Jackson A,Sherrington CR,Talbot P

更新日期：1999-02-01 00:00:00