Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Magnetic resonance imaging  (17)
  • Key words Magnetic resonance imaging  (5)
  • Spinal cord  (4)
  • Magnetisation transfer  (2)
Source
Material
Years
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Demonstration der Plaqueentwicklung bei multipler Sklerose mittels Magnetisation-Transfer-Ratio-Bildern und Protonenspektroskopie mit kurzer Echozeit (1997)
    Springer
    Der Nervenarzt 68 (1997), S. 996-1001 
    Details
    ISSN: 1433-0407
    Keywords: Schlüsselwörter Multiple Sklerose ; Magnetresonanztomographie ; Protonenspektroskopie ; Magnetisation-Transfer ; Demyelinisierung ; Key words Magnetic resonance imaging ; Multiple sclerosis ; Proton spectroscopy ; Magnetisation transfer ; Demyelination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary We investigated a patient with secondary progressive Multiple Sclerosis during an acute relapse and after 6 months using several Magnetic Resonance methods. Conventional Magnetic Resonance images demonstrated at the time of relapse a large gadolinium enhancing lesion. Using proton spectroscopy and Magnetisation Transfer images heterogeneous changes suggestive of oedematous swelling peripherally, and active myelin destruction centrally were demonstrated in the acute phase. After clinical recovery there was marked resolution of acute inflammatory Magnetic Resonance abnormalities and recovery of MR tissue parameters. In comparison with conventional Magnetic Resonance Imaging Magnetisation Transfer Imaging and Proton Spectroscopy provide improved characterisation of pathological changes in MS.
    Notes: Zusammenfassung Wir untersuchten eine Patientin mit sekundär progressiver multipler Sklerose während eines akuten Schubes und im Verlauf nach 6 Monaten mit verschiedenen Magnetresonanztechniken. In der konventionellen Bildgebung fand sich zeitgleich zur klinischen Verschlechterung eine ausgedehnte kontrastmittelanreichernde Läsion. Mittels der Protonenspektroskopie und Magnetisation-Transfer-Bildern konnten heterogene pathologische Veränderungen mit wahrscheinlich ödematösen Gewebeveränderungen in der Peripherie und Demyelinisierung im Zentrum der Läsion in der akuten Phase dargestellt werden. Mit dem Abklingen der akuten Symptomatik zeigte sich eine Rückbildung der akut entzündlichen Aktivität und eine Erholung der MR-Gewebeparameter. Im Vergleich zur konventionellen Magnetresonanztomographie bieten Magnetisation Transfer Bildgebung und Protonen Spektroskopie spezifischere Informationen bei der Darstellung pathologischer Gewebeveränderungen der multiplen Sklerose.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001150050229
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    MR brain scanning in patients with vasculitis: differentiation from multiple sclerosis (1987)
    Springer
    Neuroradiology 29 (1987), S. 226-231 
    Details
    ISSN: 1432-1920
    Keywords: Magnetic resonance imaging ; Systemic lupus erythematosus ; Behcet's disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We performed MR (magnetic resonance) brain imaging on 24 patients with a systemic vasculitis. MRI proved to be a sensitive method for detecting brain lesions (clinically silent or manifest) in these patients. The most frequent abnormalities were periventricular lesions seen in 12 cases. Such changes are not specific for vascular disease, and are often seen in multiple sclerosis. However, additional changes were commonly seen which suggested the correct diagnosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00451758
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Volume measurement of multiple sclerosis lesions with magnetic resonance images (1992)
    Springer
    Neuroradiology 34 (1992), S. 475-479 
    Details
    ISSN: 1432-1920
    Keywords: Magnetic resonance imaging ; Volume measurement ; Multiple sclerosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The ability to visualise multiple selerosis lesions in vivo with magnetic resonance imaging suggests and important role in monitoring the course of the disease. In order to help the long-term assessment of prospective treatments, a semi-automated technique for measuring lesion volume has been developed to provide a quantitative index of disease progression. Results are presented from a preliminary study with a single patient and compared to measurements taken from lesion outlines traced by a neuroradiologist, two neurologists and a technician. The semi-automated technique achieved a precision of 6% compared to a range of 12–33% for the manual tracing method. It also reduced the human interaction time from at least 60 min to 15 min.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00598953
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Detection of optic nerve lesions in optic neuritis using frequency-selective fat-saturation sequences (1993)
    Springer
    Neuroradiology 35 (1993), S. 156-158 
    Details
    ISSN: 1432-1920
    Keywords: Optic neuritis ; Optic nerve ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary MRI was performed on seven patients with acute optic neuritis, using two sequences which suppress the signal from orbital fat: frequency-selective fat-saturation and inversion recovery with a short inversion time. Lesions were seen on both sequences in all the symptomatic optic nerves studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00593976
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Database for serial magnetic resonance imaging in multiple sclerosis (1993)
    Springer
    Neuroradiology 35 (1993), S. 362-366 
    Details
    ISSN: 1432-1920
    Keywords: Multiple sclerosis ; Magnetic resonance imaging ; Brain ; Gadolinium ; Database
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The unique sensitivity of magnetic resonance imaging (MRI) in detecting disease activity in multiple sclerosis (MS) and the objective nature of the information obtained suggest that MRI will be a useful and reliable way of monitoring treatment trials. There is a need to develop an appropriate database which would provide a standardised means of assessment, not only of MRI, but also of essential clinical information. As part of the program of Concerted Action in Multiple Sclerosis, funded by the Commission of the European Community (CEC), we have developed a database for recording serial brain MRI results. The database consists of core, entry and follow-up sections. Both entry and follow-up parts are subdivided into clinical, MR system and MRI data. We expect that the use of this database will maximise efficiency of MRI monitoring in MS treatment trials, particularly in multicentre studies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588371
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Improved imaging of the spinal cord in multiple sclerosis using three-dimensional fast spin echo (1998)
    Springer
    Neuroradiology 40 (1998), S. 416-419 
    Details
    ISSN: 1432-1920
    Keywords: Key words Multiple sclerosis ; Spinal cord ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report assessment of a new three-dimensional fast spin echo (3D FSE) sequence in ten patients with clinically definite multiple sclerosis, comparing it with standard 2D FSE, and in ten normal controls. We saw 29 focal lesions on the 2D images and 53 on the 3D FSE imgages (P = 0.05); none were seen in controls. Lesion length was significantly smaller on the 3D FSE than on to the 2D FSE images (3D: 1.36; 2D 2,0; P = 0.03). This may relate in part to separation into several lesions on the 3D images of confluent abnormal signal seen on 2D and in part to detection of small lesions missed by the thicker 2D FSE slices (3 mm compared to 1.5 mm). The 3D FSE sequence looks promising in improving spinal cord imaging.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050614
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    A comparison of conventional and fast spin-echo sequences for the measurement of lesion load in multiple sclerosis using a semi-automated contour technique (1997)
    Springer
    Neuroradiology 39 (1997), S. 161-165 
    Details
    ISSN: 1432-1920
    Keywords: Key words Magnetic resonance imaging ; Multiple sclerosis ; Pulse sequences ; Lesion load
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Changes on serial assessments of brain MRI lesion load are used for monitoring therapeutic efficacy in patients with multiple sclerosis (MS). We assessed the accuracy and reliability of conventional spin-echo (CSE) and fast spin-echo (FSE) sequences for measurement of lesion volume using a semiautomated contour technique. Cranial CSE and FSE examinations of 18 patients with secondary progressive MS were studied. The mean lesion load was slightly higher with the CSE sequence (p = 0.002). Intraobserver variability was significantly higher for FSE than for CSE, according to both the coefficient of variation between two measurements (mean 2.48 % and 1.35 % respectively, p 〈 0.05) and back-transformed 95 % limits of agreement (1.005–1.060 for FSE; 0.988–1.019 for CSE). Although FSE sequences are quicker and the total lesion volume measurements are similar to those obtained with CSE, the poorer reproducibility raises doubts about the use of FSE to replace CSE in clinical trials.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050384
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    A comparison between fast and conventional spin-echo in the detection of multiple sclerosis lesions (1994)
    Springer
    Neuroradiology 36 (1994), S. 388-392 
    Details
    ISSN: 1432-1920
    Keywords: Magnetic resonance imaging ; Fast spin-echo ; Multiple sclerosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Long repetition time (TR) spin-echo (SE) with T2- or proton density weighting is the sequence of choice to detect the brain lesions of multiple sclerosis (MS). Fast spin-echo (FSE) permits the generation of T2-weighted images with similar contrast to SE but in a fraction of the time. We compared the sensitivity of FSE and SE in the detection of the brain lesions of MS. Six patients with clinically definite MS underwent brain imaging with both dual echo (long TR, long and short echo time (TE) SE and dual echo FSE. The SE and FSE images were first reviewed independently and then compared. A total of 404 lesions was detected on SE and 398 on FSE. Slightly more periventricular lesions were detected using SE than FSE (145 vs 127), whereas more posterior cranial fossa lesions were detected by FSE (77 vs 57). With both SE and FSE the short TE images revealed more lesions than the long echo. These results suggest that FSE could replace SE as the long TR sequence of choice in the investigation of MS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00612125
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Dynamic gadolinium-enhanced MRI in the detection of spinal arteriovenous malformations (1994)
    Springer
    Neuroradiology 36 (1994), S. 522-529 
    Details
    ISSN: 1432-1920
    Keywords: Magnetic resonance imaging ; Arteriovenous malformations ; Spinal cord ; Contrast media
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Arteriovenous fistulae and malformations (AVFs and AVMs) of the spinal cord are rare, potentially treatable causes of progressive disability. Although a variety of MRI abnormalities has been described, the diagnosis rests on the findings on selective spinal angiography.Collecting T2*-weighted MR images during the passage of a gadolinium bolus gives information about perfusion and blood volume. We carried out dynamic MRI in seven patients with vascular abnormalities (5 dural AVFs, 1 intramedullary AVM, 1 cryptic angioma) and in two patients without an AVM. High resolution T1- and T2-weighted sagittal images of the whole spinal cord were first obtained using a multiarray receiver coil. Sagittal radiofrequency spoilt gradient echo images (GE34/25, flip angle 100) were then obtained during bolus injection of gadolinium-DTPA. Abnormalities were seen in all seven patients with AVFs or AVMs. In the patient with an intramedullary AVM and four of the five with dural AVFs transient signal reduction was seen within the perimedullary venous plexus during passage of the bolus. The findings correlated well with those from selective spinal angiography. We conclude that dynamic MRI offers a useful adjunct to angiography and may localise an arteriovenous shunt when conventional MRI fails to do so. In combination with high-resolution imaging of the entire spinal cord the technique may make myelography redundant; it is simple, well tolerated and can be carried out without significant time penalty.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00593515
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Fast FLAIR of the brain: the range of appearances in normal subjects and its application to quantification of white-matter disease (1997)
    Springer
    Neuroradiology 39 (1997), S. 243-249 
    Details
    ISSN: 1432-1920
    Keywords: Key words Fluid-attenuated inversion recovery sequences ; Normal brain ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Axial fast FLAIR images of the brains of 40 normal volunteers in four age groups between 16 and 55 years were examined and the number and size of areas of increased white-matter signal recorded. Increased signal in the corticospinal tract region was seen at the level of the internal capsule in all subjects, extending up towards the centrum semiovale and down towards the pons for 0.5–5.5 cm (median 2.5 cm). In all cases the IIIrd and IVth ventricles were outlined by a thin line of high signal. Focal areas of high signal (caps) were seen around the frontal and occipital horns in 90 % and 77 % respectively; 54 % of caps were asymmetrical. None of the above features varied with the age or sex of the subject, but the numbers of discrete white matter ’lesions' increased with age. The findings are used to suggest guidelines for the identification of areas of ’normal' high signal to be excluded in quantification of lesions on fast FLAIR images.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050402
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...