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  • 1
    Electronic Resource
    Electronic Resource
    “Top of the basilar” syndrome: A comparison of clinical and MR findings (1988)
    Springer
    Neuroradiology 30 (1988), S. 293-298 
    Details
    ISSN: 1432-1920
    Keywords: Top of the basilar artery syndrome ; Cerebral infarctions ; Magnetic resonance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Among 100 patients with an infarction of the brain reported on MR and clinically confirmed there were 4 with widespread lesions of the temporal and occipital lobes, thalamus, midbrain, pons and cerebellum, all supplied by arteries originating around the top of the basilar artery. Clinically these patients presented the “top of the basilar” syndrome, which is caused by a disturbance in circulation at the top of the basilar artery. Which brain areas are involved may be deduced theoretically from the vascular anatomy. These lesions can, we believe, be clearly detected using MR, because of its sensitivity to ischaemic disturbances and in the posterior fossa. We report our 4 patients here to illustrate the clinical presentation and MR findings of the “top of the basilar” syndrome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00328178
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Serial quantitative MR assessment of optic neuritis in a case of neuromyelitis optica, using Gadolinium-“enhanced” STIR imaging (1991)
    Springer
    Neuroradiology 33 (1991), S. 70-71 
    Details
    ISSN: 1432-1920
    Keywords: MR imaging ; STIR ; Neuromyelitis optica ; Optic nerve ; Gadolinium-DTPA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A patient is presented with neuromyelitis optica. MR imaging, using a short inversion time inversion recovery (STIR) technique, clearly depicted the lesion in the left optic nerve. Subsequent serial STIR imaging, with and without Gadolinium-DTPA, allowed quantitative assessment of changes parallel to improved optic nerve function. STIR imaging is a sensitive technique to demonstrate optic nerve lesions, and enables quantitative assessment to be made of the effect of (steroid) medication.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00593340
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Comparison of a conventional cardiac-triggered dual spin-echo and a fast STIR sequence in detection of spinal cord lesions in multiple sclerosis (2000)
    Springer
    European radiology 10 (2000), S. 753-758 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Multiple sclerosis ; MR imaging ; Spinal cord
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The current optimal imaging protocol in spinal cord MR imaging in patients with multiple sclerosis includes a long TR conventional spin-echo (CSE) sequence, requiring long acquisition times. Using short tau inversion recovery fast spin-echo (fast STIR) sequences both acquisition time can be shortened and sensitivity in the detection of multiple sclerosis (MS) abnormalities can be increased. This study compares both sequences for the potential to detect both focal and diffuse spinal abnormalities. Spinal cords of 5 volunteers and 20 MS patients were studied at 1.0 T. Magnetic resonance imaging included cardiac-gated sagittal dual-echo CSE and a cardiac-gated fast STIR sequence. Images were scored regarding number, size, and location of focal lesions, diffuse abnormalities and presence/hindrance of artifacts by two experienced radiologists. Examinations were scored as being definitely normal, indeterminate, or definitely abnormal. Interobserver agreement regarding focal lesions was higher for CSE (ϰ = 0.67) than for fast STIR (ϰ = 0.57) but did not differ significantly. Of all focal lesions scored in consensus, 47 % were scored on both sequences, 31 % were only detected by fast STIR, and 22 % only by dual-echo CSE (n. s.). Interobserver agreement for diffuse abnormalities was lower with fast STIR (ϰ = 0.48) than dual-echo CSE (ϰ = 0.65; n. s.). After consensus, fast STIR showed in 10 patients diffuse abnormalities and dual-echo CSE in 3. After consensus, in 19 of 20 patients dual-echo CSE scans were considered as definitely abnormal compared with 17 for fast STIR. The fast STIR sequence is a useful adjunct to dual-echo CSE in detecting focal abnormalities and is helpful in detecting diffuse MS abnormalities in the spinal cord. Due to the frequent occurrence of artifacts and the lower observer concordance, fast STIR cannot be used alone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050998
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    Paper (German National Licenses)
    Fulltext
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