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  • 1
    Electronic Resource
    Electronic Resource
    Morphological analysis of the cervical spinal canal, dural tube and spinal cord in normal individuals using CT myelography (1996)
    Springer
    Neuroradiology 38 (1996), S. 148-151 
    Details
    ISSN: 1432-1920
    Keywords: Key words Developmental spinal canal stenosis ; Myelopathy ; CT myelography ; Spinal cord
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To verify the conventional concept of “developmental stenosis of the cervical spinal canal”, we performed a morphological analysis of the relations of the cervical spinal canal, dural tube and spinal cord in normal individuals. The sagittal diameter, area and circularity of the three structures, and the dispersion of each parameter, were examined on axial sections of CT myelograms of 36 normal subjects. The spinal canal was narrowest at C4, followed by C5, while the spinal cord was largest at C4/5. The area and circularity of the cervical spinal cord were not significantly correlated with any parameter of the spinal canal nor with the sagittal diameter and area of the dural tube at any level examined, and the spinal cord showed less individual variation than the bony canal. Compression of the spinal cord might be expected whenever the sagittal diameter of the spinal canal is below the lower limit of normal, that is about 12 mm on plain radiographs. Thus, we concluded that the concept of “developmental stenosis of the cervical spinal canal” was reasonable and acceptable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00604802
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Morphological analysis of the cervical spinal canal, dural tube and spinal cord in normal individuals using CT myelography (1996)
    Springer
    Neuroradiology 38 (1996), S. 148-151 
    Details
    ISSN: 1432-1920
    Keywords: Developmental spinal canal stenosis ; Myelopathy ; CT myelography ; Spinal cord
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To verify the conventional concept of “developmental stenosis of the cervical spinal canal”, we performed a morphological analysis of the relations of the cervical spinal canal, dural tube and spinal cord in normal individuals. The sagittal diameter, area and circularity of the three structures, and the dispersion of each parameter, were examined on axial sections of CT myelograms of 36 normal subjects. The spinal canal was narrowest at C4, followed by C5, while the spinal cord was largest at C4/5. The area and circularity of the cervical spinal cord were not significantly correlated with any parameter of the spinal canal nor with the sagittal diameter and area of the dural tube at any level examined, and the spinal cord showed less individual variation than the bony canal. Compression of the spinal cord might be expected whenever the sagittal diameter of the spinal canal is below the lower limit of normal, that is about 12 mm on plain radiographs. Thus, we concluded that the concept of “developmental stenosis of the cervical spinal canal” was reasonable and acceptable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00604802
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    A novel color M-mode Doppler echocardiographic index for left ventricular relaxation: depth of the maximal velocity point of left ventricular inflow in early diastole (2000)
    Springer
    Heart and vessels 15 (2000), S. 205-213 
    Details
    ISSN: 1615-2573
    Keywords: Key words Diastolic function ; Prognosis ; Myocardial infarction ; Color M-mode Doppler echocardiography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Color M-mode Doppler echocardiography (CMD) has been utilized in assessing left ventricular (LV) filling dynamics. We tested a novel CMD index, the depth of the spatiotemporal maximum of early diastolic inflow (D-maxV) in the left ventricle, to clarify its significance in assessing LV diastolic function. In 26 normal subjects and 32 patients with ischemic heart disease, D-maxV was determined with CMD as the distance from the mitral valve opening point to the center of the aliasing area in early diastole. Transmitral flow velocity was measured with pulsed Doppler. During routine catheterization, high-fidelity LV pressure measurements yielded diastolic variables in patients. D-maxV was significantly lower in the patients than the normals (13.0 ± 7.0 vs 23.4 ± 6.8 mm, P 〈 0.0001). D-maxV exhibited significant linear correlations with the minimal first derivative of LV pressure (r = 0.72, P 〈 0.01), the time constant of isovolumic relaxation (r = −0.67, P 〈 0.01), and LV minimal pressure (r = −0.53, P 〈 0.02) in the patients with wide ranges of peak early to late inflow velocity ratio (0.43–3.9) and deceleration time of early filling (79–293 ms). D-maxV showed an inverse correlation with LV end-diastolic pressure (r = −0.53, P 〈 0.02) and no significant correlation with mean pulmonary capillary wedge pressure. Moreover, Kaplan-Meier analysis focusing on the patients with myocardial infarction revealed that the group with D-maxV 〈 10.4 mm (n = 13) exhibited a lower cumulative cardiac event-free rate than that with D-maxV ≥ 10.4 mm (n = 14) (49.4% vs 92.9% at 5 years, P 〈 0.05). The depth of the spatiotemporal maximum of early diastolic LV inflow velocity reflects LV relaxation and is free of pseudonormalization. Evaluation of the LV relaxation separately from preload may have a prognostic value for myocardial infarction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003800070009
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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