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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Neurosurgical review 10 (1987), S. 123-125 
    ISSN: 1437-2320
    Keywords: CT-scan ; MRI ; myelopathy ; spinal canal stenosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Methods which produce findings relevant to diagnosis and therapy of cervical vertebral canal stenosis are described. Especially MRI provides insights into the structure of the myelon; abnormal image signals may possibly correlate with cervical myelopathy based on disorders of microcirculation.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 9 (1987), S. 95-105 
    ISSN: 1279-8517
    Keywords: Mediastinum ; MRI ; Anatomic sections
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé 10 volontaires présentant un médiastin normal ont été explorés en Résonance Magnétique avec un imageur CGR 0,5 Tesla à aimant supraconducteur. La matrice de reconstruction est constituée par une grille de 256×256 pour un champ de l'ordre de 420 mm, soit une résolution spatiale de 1,6×1,6 mm2. Les coupes pondérées en T1 ont été réalisées en synchronisation sur l'ECG. Les coupes sagittales jointives sont corrélées à des coupes anatomiques sagittales réalisées sur un même sujet embaumé et congelé. Coupes IRM et coupes anatomiques sont réalisées tous les 5 mm et sont référencées par rapport au plan sagittal médian du médiastin. Des exemples de variations morphologiques, de malformations ou de tumeurs étudiées en coupes sagittales (extraits des examens de plus de 170 malades) montrent l'intérêt de cette incidence d'exploration.
    Notes: Summary Ten volunteers with a normal mediastinum were investigated by magnetic resonance using a 0,5 Tesla CGR imager with a supraconducting magnet. The reconstruction matrix consisted of a 256×256 grating for a field of the order of 420 mm, with a spatial resolution of 1.6×1.6 mm2. The sections, balanced in T1, were performed in synchronization with the ECG. The successive sagittal sections were correlated with sagittal sections made on a single embalmed frozen subject. The MRI and anatomic sections were made at 5 mm intervals and located in relation to the median sagittal plane of the mediastinum. Examples of structural variations, malformations or tumours studied in sagittal sections, and taken from investigation of over 170 patients, demonstrate the importance of this investigational technique.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Neurosurgical review 10 (1987), S. 31-33 
    ISSN: 1437-2320
    Keywords: Computed tomography ; gadolinium-DTPA ; MRI ; paramagnetic agents ; vascular malformations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract MRI and gadolinium-DTPA enhanced dynamic MRI increase the information available for and from diagnosis of vascular malformations since it appears possible to obtain nearly specific information about these lesions. Further investigations are needed with fast imaging, flow imaging, and MR substraction angiography to obtain information similar to that obtained by angiography and CT. The value of X-ray CT for the diagnosis of vascular malformations seems to be inferior to MRI since MRI can delineate vessels and flow better and also allows direct multiplanar imaging.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1437-2320
    Keywords: Experimental studies ; intracerebral hematomas ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The mechanisms causing unclear differentiation of ICH in the acute phase by MRI are discussed. The increase of the hemoglobin concentration in the hematoma, caused by loss of the plasma component directly after onset, is one of the reasons for the shortening of relaxation times. The clotting system is also responsible for this shortening. Thus, the hematoma reaches the same intensity as the brain in the acute stage. Although knowledge from our animal experiments, in vivo as well as in vitro, cannot be directly transferred to the human, such experiments are useful for the understanding of the pathomechanism influencing MR imaging.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1437-2320
    Keywords: CT-scan ; MRI ; progressive multifocal leukoencephalopathy ; virusinfection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract On the basis of two of our cases we report here on the clinical symptoms and neuroradiological findings in patients with progressive multifocal leukoencephalopathy. Emphasis is put on the value of MRI in early stages of this disease, especially, and on the increased information provided by this method as compared to CT-scanning.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 88 (1987), S. 20-25 
    ISSN: 0942-0940
    Keywords: Hormonactive pituitary tumours ; transsphenoidal surgery ; MRI ; high resolution CT
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The search of reliable imaging methods to detect the substrate for persisting hypersecretion in patients operated on for hormonactive pituitary adenoma prompted us to study the possibilities of the newly available Magnetic Resonance Imaging (MRI) technique in this regard. Pre- and postoperative MRI-studies where performed in 5 patients with persisting GH excess following transsphenoidal surgery as well as in 3 patients with micro- and 2 patients with macroprolactinomas. The MRI-findings were correlated with the results of the endocrinological examinations. Two acromegalic patients and three cases with microprolactinomas, who were sucessfully operated upon as defined by the functional criteria were also included to obtain a baseline for normal postoperative findings. The MRI-study was positive in all of the five patients with persisting GH-overproduction. In prolactinomas, the substrate of hypersecretion could only be detected, when the PRL-value exceeded 2,000 μU/ml. MRI may present an important diagnostic method for evaluating further treatment options in patients with remaining hormonal hypersecretion following transsphenoidal adenomectomy, particularly with regard to a second surgical approach.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-1920
    Keywords: Gliomatosis cerebri ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Gliomatosis cerebri is a rare condition characterized by diffuse overgrowth of large portions of the brain and spinal cord by glial cells in varying stages of differentiation. The tumor process is primarily an infiltrative, rather than a destructive one. Hence, pre-operative diagnosis by traditional imaging studies, including computed tomography (CT), has been difficult. Magnetic resonance imaging (MRI), with its unique sensitivity for cerebral pathology, is an ideal modality for demonstrating this lesion. We present three cases of gliomatosis cerebri in which high-field MRI clearly delineates the extent of the pathologic process.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-1920
    Keywords: Cerebral aqueduct ; MRI ; Brain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1.5 Tesla MRI examinations were evaluated for aqueductal configuration, hydrocephalus and flow-related signal void in 70 patients with juxtaaqueductal pathology and in 20 normal controls. In the 70 cases with pathology, the aqueduct was obliterated or distorted in 34, dilated in 3, normal in 29 and not evaluable in 4. A definite flow-related signal void indicated CSF movement within the aqueduct in all normal examinations. Flow-related signal void was absent in some, but not all, patients with aqueductal obliteration and distortion. CSF turbulence can create an intra-aqueductal signal void in the dilated proximal aqueduct, despite more distal obstruction. Thus hydrocephalus related to aqueductal obstruction is frequently, but not always, associated with absence of signal void.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 29 (1987), S. 578-581 
    ISSN: 1432-1920
    Keywords: Meningioma ; Cavernous sinus ; MRI ; Gadolinium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The authors report their experience in examining cavernous sinus meningiomas with MRI. The advantages of this diagnostic method particularly in comparison with conventional neuroradiological techniques are described.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1920
    Keywords: Enterogenous cyst ; Neurenteric cyst ; Spinal cord compression ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Enterogenous cysts are relatively rare causes of spinal cord compression. A case of enterogenous cyst causing compression of spinal cord at C2–3 is presented. Radiological findings, including MRI, are discussed.
    Type of Medium: Electronic Resource
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  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 29 (1987), S. 401-402 
    ISSN: 1432-1920
    Keywords: Listeriosis ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of Listeria rhombencephalitis in a patient, who was evaluated by MRI, is reported. MRI showed areas of high signal intensity on T2-weighted images in the rhombencephalon and confirmed the clinical diagnosis of a brainstem affection by Listeria monocytogenes.
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 235 (1987), S. 122-124 
    ISSN: 1432-1459
    Keywords: Paraneoplastic cerebellar degeneration ; Hodgkin's disease ; MRI ; Anti-Purkinje-cell antibodies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of paraneoplastic cerebellar degeneration (PCD) associated with Hodgkin's disease is presented. The features that make this case particularly interesting are the simultaneous occurrence of PCD with a relapse of Hodgkin's disease, which has been present for 17 years, and the arrested progression of cerebellar dysfunction after a subacute onset. Cerebellar atrophy was revealed by computed tomography and magnetic resonance imaging. In contrast to two previously reported cases, anti-Purkinje-cell antibodies were not detected.
    Type of Medium: Electronic Resource
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  • 13
    ISSN: 1573-2622
    Keywords: trauma ; orbit ; foreign body ; CT ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 19-year-old male was referred because of a grease-gun injury of the left orbit, resulting in a 25 mm proptosis and marked decrease in vision. The clinical diagnosis of penetration of the retrobulbar fat space by the grease and the subsequent accurate drainage of the grease was made possible on the basis of high resolution computed tomography (CT) and magnetic resonance imaging (MRI). As a result, lateral orbitotomy could be avoided. Eight months after the injury the visual acuity was fully recovered and the proptosis reduced to 2 mm. The visual field was relatively undisturbed. The specific value of CT and MRI for the management of this unusual trauma is briefly discussed.
    Type of Medium: Electronic Resource
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  • 14
    Electronic Resource
    Electronic Resource
    Hoboken, NJ [u.a.] : Wiley-Blackwell
    Journal of Orthopaedic Research 5 (1987), S. 164-172 
    ISSN: 0736-0266
    Keywords: Magnetic resonance imaging ; MRI ; Osteoarthritis ; Knee ; Experimental osteoarthritis ; Life and Medical Sciences
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: Conventional radiography has several limitations in the study of osteoarthritis (OA): changes occur late, they are restricted to bone, and they do not correlate well with the patient's symptoms. Magnetic resonance imaging (MRI) can visualize with great detail the soft tissue changes in and around joints. We have obtained MR images of knees using an experimental model of OA in order to study the early changes of OA, to correlate the images with the gross patnology, and to compare MR images with radiographs. The changes on MRI correlated with the gross pathological changes as assessed by Kendall's rank correlation test as follows: meniscal changes, τ = 0.58 (p 〈 0.01); osteophytes, τ = 0.59 (p 〈 0.05); capsular fibrosis, τ = 0.55 (p 〈 0.05); and overall, τ = 0.68 (p 〈 0.001). Abnormalities were evident on MRI as early as 4 weeks after the onset of the disease, which is 8 weeks before they appear on radiographs. Thus, MRI can show changes in OA earlier than radiography can, and the images correlate with the gross pathology.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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