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  • Articles  (5)
  • Magnetic resonance imaging  (3)
  • Cephalocereus senilis  (2)
  • 1
    ISSN: 1432-0533
    Keywords: Pes cavus ; Magnetic resonance imaging ; Pathology ; Morphometry ; Peroneus longus hypertrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Enlargement of the peroneus longus muscle is a common occurrence in patients with forefoot pes cavus, and may contribute to the cavus deformity. The present study compares the morphology of up to five lower leg muscles from 17 patients with forefoot pes cavus with those of normal muscles. Eight cases had an identifiable neurogenic cause for the cavus. In four cases of hereditary motor-sensory neuropathy, the tibialis anterior showed more severe damage than the peroneus longus. In two cases of cerebral palsy, fibre atrophy and increased oxidative enzyme activity were observed. In nine clinically idiopathic cases, the histological appearances ranged from normal to generalised fibre atrophy or hypertrophy in individual muscles. There was a trend for the mean fibre area to be greater in peroneus longus than in tibialis anterior in six of the idiopathic group of patients. The muscle cross-sectional area on magnetic resonance imaging was correlated closely with the mean fibre area measured on tissue sections. In idiopathic forefoot pes cavus, fibre hypertrophy in peroneus longus (relative to tibialis anterior) may contribute to the cavus deformity. Muscle fibre hyperplasia may contribute to the peroneal muscle enlargement in Friedreich's ataxia. In none of the cases was peroneus longus enlargement due to fat or fibrous tissue replacement.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0533
    Keywords: Key words Pes cavus ; Magnetic resonance imaging ; Pathology ; Morphometry ; Peroneus longus hypertrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Enlargement of the peroneus longus muscle is a common occurrence in patients with forefoot pes cavus, and may contribute to the cavus deformity. The present study compares the morphology of up to five lower leg muscles from 17 patients with forefoot pes cavus with those of normal muscles. Eight cases had an identifiable neurogenic cause for the cavus. In four cases of hereditary motor-sensory neuropathy, the tibialis anterior showed more severe damage than the peroneus longus. In two cases of cerebral palsy, fibre atrophy and increased oxidative enzyme activity were observed. In nine clinically idiopathic cases, the histological appearances ranged from normal to generalised fibre atrophy or hypertrophy in individual muscles. There was a trend for the mean fibre area to be greater in peroneus longus than in tibialis anterior in six of the idiopathic group of patients. The muscle cross-sectional area on magnetic resonance imaging was correlated closely with the mean fibre area measured on tissue sections. In idiopathic forefoot pes cavus, fibre hypertrophy in peroneus longus (relative to tibialis anterior) may contribute to the cavus deformity. Muscle fibre hyperplasia may contribute to the peroneal muscle enlargement in Friedreich's ataxia. In none of the cases was peroneus longus enlargement due to fat or fibrous tissue replacement.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1439-6327
    Keywords: Paraspinal muscles ; Cross-sectional area ; Magnetic resonance imaging ; Low back pain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This paper considers an internal standard of lumbar muscularity. The cross-sectional areas (A cs) of the intervertebral disc and paraspinal muscles were measured in 147 working men from an axial magnetic resonance image passing through the L3-4 disc. Lumbar muscularity was expressed by two ratios; the ratio between the A cs of the right psoas and the A cs of the intervertebral disc (P:disc), and the ratio between the combined A cs values of the right erector spinae and quadratus lumborum and the A cs of the disc (ESQL:disc). When the subjects were divided into two age groups (76 aged 20–30 years and 71 aged 31–58 years) lumbar muscularity was found to be significantly greater (P 〈 0.001) in the younger age group (P:disc=0.8, SD 0.2; ESQL:disc=2.0, SD 0.3) than in the older age group (P:disc =0.7, SD 0.2; ESQL:disc=1.8, SD 0.3). Lumbar muscularity was not significantly affected by occupation or by a history of low back pain.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0031-9422
    Keywords: Cactaceae ; Cephalocereus senilis ; HPLC. ; aurone ; enzyme induction ; phytoalexin ; suspension culture
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0031-9422
    Keywords: Cactaceae ; Cephalocereus senilis ; HPLC ; aurone ; enzyme induction ; phytoalexin ; suspension culture
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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