Library

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 380 (1995), S. 203-206 
    ISSN: 1435-2451
    Keywords: Magnetic resonance imaging ; Cervical spine ; Titanium implant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Vorstellung von 10 Patienten, von denen sich 8 Rückenmarkschädigungen und 2 radikuläre Beeinträchtigungen im Rahmen von Dislokationsverletzungen der HWS zuzogen und die nach Stabilisierungsoperationen im Zeitraum von 2 Tagen bis 8 Monaten mittels MRT abgekldrt werden, verfolgt das Ziel, die Einsatz-und Aussagembglichkeiten dieser nicht-invasiven Methode darzustellen. Bei 2 Patienten mit schwerem Schädelhirntrauma konnte die Ursache für die Querschnittsläsion eindeutig einer Rückenmarkschädigung zugeordnet werden. Ebenso korrelierten schwere Binnenschäden des Rückenmarks, wie intramyeläre Hämatome oder Transsektionen, mit kompletten Querschnittsläsionen. Alleinige Rückenmarködeme traten mit einer inkompletten Querschnittsläsion auf. Die Beurteilung des Ruckenmarks nach postoperativer neurologischer Verschlechterung ermöglicht den Ausschluß einer Rückenmarkkompression als Ursache. Die MRT eignet sich auch zur lebenslangen Beurteilung von Rückenmark- und HWS-Veränderungen. Somit kann das Rückenmark mit der postoperativen MRT in Problemfällen und zur Prognoseerstellung herangezogen werden.
    Notes: Abstract We present the cases of ten patients who underwent postoperative magnetic resonance assessment after dislocation injuries of the cervical spine and treatment with anterior interbody fusion and titanium implants. Eight patients had spinal cord injuries and two had nerve root disorders. In two patients who had intracranial haematomas and dislocation fractures of the cervical spine, MRI proved useful for identification of parenchymal spinal cord injuries as the reason for transverse lesions. Severe MR findings of the parenchymal spinal cord injuries (haematoma or transection) correlated with complete transverse lesions (4 patients) and oedema of the spinal cord, with incomplete transverse lesions (3 patients). MR enables us to examine the spinal cord after operations to ensure that correct spinal cord decompression has been achieved (3 patients). MRI is useful for detecting disc protrusion or chronic spinal stenosis in patients with titanium implants. All in all, MRI is an important modality in the evaluation of the posttraumatic cervical spine.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1435-9456
    Keywords: Key words Communication ; Individual signature ; Recognition ; Social behaviour ; Bats
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The remarkable cognitive abilities of bats indicate that they may recognise particular conspecifics. Because of their highly developed auditory system, it is obvious that vocalisations of bats may give information about the individual emitting them. In a field study of the social behaviour in the Indian false vampire bat (Megaderma lyra), two different types of vocalisation were recorded and analysed. The bats emitted these vocalisations only while aggregating with conspecifics inside the day roost. The “landing strophe” consisted of a number of brief multiharmonic downward frequency-modulated (FMdown) sounds which levelled off as a constant frequency (CF), and the “clatter strophe” was composed of a number of multiharmonic FMdown sounds which became shallow at the end as a short CF. The sounds of the landing strophe and the ¶clatter strophe differed in repetition rate, duration, harmonic components and frequency. Time pattern and peak frequency of the two sound types differed highly significantly between single, unidentified bats. The sounds were inter-individually distinct when the three parameters were combined as an acoustical space. Therefore, these vocalisations might be used for individual recognition in adult bats.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...