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  • Colour flow mapping  (2)
  • Computed tomography  (2)
  • Dermatitis  (2)
  • 1
    ISSN: 1432-1920
    Keywords: Computed tomography ; Hydrocephalus ; Periventricular lucency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In order to investigate the pathogenesis of periventricular lucency (PVL) in hydrocephalus, CT scans were performed with monitoring of the epidural pressure in a series of dogs with hydrocephalus induced with kaolin. PVL of various degrees was detected in the experimental animals, which disappeared immediately after a shunting operation. Correlations have been attempted between PVL on CT scans and histological examinations, contrast enhancement studies, metrizamide ventriculography, and measurement of regional cerebral blood flow in the periventricular white matter. PVL in hydrocephalus is considered to represent acute edema or chronic CSF retention in the periventricular white matter caused by an increase of water content. In other words, it is regarded as a sign of existing or preceding intraventricular hypertension on CT scan, and seems to be a reversible phenomenon to some extent. PVL may therefore became an indication for a shunt.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 110 (1991), S. 124-128 
    ISSN: 0942-0940
    Keywords: Computed tomography ; intracranial lipoma ; magnetic resonance imaging ; surgical management
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Intracranial lipomas are very rare, probably congenital lesions. Though they can occur anywhere in the intracranial space, a good proportion of cases tend to be located around the midline. Review of the literature as well as our own three cases — which forms the basis of this article — shows that they are mostly asymptomatic. When symptoms occur, they are frequently the result of coexisting general clinical conditions. Lipomas used to be reported mainly as incidental findings at autopsy. Advances in neuro-imaging techniques have vastly improved the likelihood of their being discovered during life. At present however, significant increase in the reported incidence of these tumours is yet to be seen. Surgical extirpation of the tumour is not considered necessary in the majority of patients, many of whom show remarkable clinical improvement following shunt procedures for obstructive hydrocephalus as well as treatment of coexisting conditions such as epilepsy.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1076
    Keywords: Key words Supracristal ventricular septal defect ; Aortic valve prolapse ; Aortic regurgitation ; Colour flow mapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The development and timing of aortic valve prolapse (AoVP) and aortic regurgitation (AR) was studied by two-dimensional echocardiography in 99 consecutive patients with supracristal ventricular septal defect (VSD). Thirty patients (30%) had aortic valve prolapse (VSD + AoVP group), and 31 patients (31%) had AoVP with AR (VSD + AoVP + AR group). In the VSD + AoVP group, AoVP was detected first by echocardiography at the age of 6.8 ± 4.2 years (mean ± SD). In the VSD + AoVP + AR group, the interval from detection of AoVP to the appearance of AR was 3.4 ± 2.0 years. The configuration of the prolapsed aortic valve was echocardiographically classified into two types: tear-drop type (small) prolapse and box type (large) prolapse. The frequency of tear-drop type prolapse was not significantly different between VSD + AoVP and VSD + AoVP + AR groups (43% versus 32%, respectively), indicating that even minor AoVP can result in AR. Four infants (4%) had AoVP at the ages of 1, 5, 7, and 11 months, respectively. All infants had tear-drop type prolapse. Two infants developed AR by colour flow mapping at the ages of 3 and 11 months, and the interval from prolapse to AR was only 2 and 4 months, respectively. Conclusion Aortic valce involement can develop under the age of 1 year in supracristal VSD. Regular evaluation by two-dimensional echocardiography with colour flow mapping is important in the follow-up of children with supracristal VSD.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1076
    Keywords: Supracristal ventricular septal defect ; Aortic valve prolapse Aortic regurgitation ; Colour flow mapping
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The development and timing of aortic weve prolapse (AoVP) and aortic regugitation (AR) was studied by two limensional echocardiography in 99 consecutive patients with supracristal ventricular septal defect (VSD). Thirty patients (30%) had aortic valve prolapse (VSD+AoVP group), and 31 patients (31%) had AoVP with AR (VSD+AoVP+AR group). In the VSD+AoVP group, AoVP was detected first by echocardiography at the age of 6.8±4.2 years (mea±SD). In the VSD+AoVP+AR group, the interval from detection of AoVP to the appearance of Al was 3.4±2.0 years. The configuration of the prolapsed aortic valve was echocardiographically classified into two types: teardrop type (small) prolapse and box type (large) prolapse. The frequency of tear-drop tyrolapse was not significantly different between VSD+AoVP and VSD+AoVP-AR groups (43% versus 32%, respectively), indicating that even minor AoVP can result, AR. Four infants (4%) had AoVP at the ages of 1, 5, 7, and 11 months, respectively. All infants had tear-drop type prolapse. Two infants developed AR by colour flow mapping at the ages of 3 and 11 months, and the interval from prolapse to AR was only 2 and 4 months, respectively. Conclusion Aortic valce, involement can develop under the age of 1 year in supracristal VSD. Regular evaluation by two-dimensional echocardiography with colour flow mapping is important in the followup of children with supracristal VSD.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 20 (1998), S. 367-371 
    ISSN: 1279-8517
    Keywords: Hepatic Artery ; Liver Cirrhosis ; Collateral Circulation ; Dermatitis ; Embolization ; Therapeutic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé L'artère du ligament falciforme hépatique (ALFH) fut étudiée par des angiographies et des dissections. D'après les résultats, le mécanisme d'un rash cutané après chimio-embolisation est discuté. Un total de 340 patients présentant une cirrhose hépatique ayant eu une chimio-embolisation de l'artère hépatique pour un carcinome hépato-cellulaire fut revu en fonction de l'incidence angiographie de l'ALFH, les variations d'origine de l'ALFH, et l'incidence d'un rash cutané. L'ALFH fut objectivée angiographiquement chez 26 (7,6%) des 340 patients. Deux ALFH furent objectivées chez un patient. L'origine des ALFH était située sur l'artère hépatique moyenne (A4) dans 16 cas, la branche supérieure de l'artère hépatique moyenne dans 3 cas, la branche inférieure de l'artère hépatique moyenne dans 2 cas, la branche inférieure de l'artère hépatique gauche (A3) dans 3 cas, et la confluence A3 et A4 dans 3 cas. Aucun patient ne développa un rash cutané après chimio-embolisation. Deux cadavres furent disséqués pour étudier les anastomoses entre l'ALFH et les artères sous-cutanées. Deux types d'anastomoses entre l'ALFH et des artères sous-cutanées furent individualisés directement et par l'intermédiaire de l'artère xiphoïde et de l'artère thoracique interne. Celles-ci étaient respectivement situées à la partie inférieure et à la partie supérieure du ligament falciforme. La distribution de l'agent chimiothérapique par ces anastomoses est vraisemblablement la cause des rash cutanés après chimio-embolisation. Dans le cas d'une embolisation prophylactique de la portion proximale de l'ALFH par utilisation d'un coil métallique le rash cutané pourrait être prévenu.
    Notes: Summary The hepatic falciform ligament artery (HFLA) was evaluated by angiography and also by dissections. Based on the findings, the mechanism of the post-chemoembolization skin rash was studied. A total of 340 liver cirrhosis patients who underwent hepatic artery chemoembolization for hepatocellular carcinoma were reviewed in terms of the angiographic incidence of the HFLA, variations in its origin, and the incidence of skin rash. The HFLA was demonstrated in 26 (7.6%) of the 340 patients on angiography. Two HFLAs were observed in one patient. The origin was the middle hepatic artery (A4) in 16 cases, the superior branch of the middle hepatic artery in three, the inferior branch of the middle hepatic artery in two, the inferior branch of the left hepatic artery (A3) in three, and the confluence of A3 and A4 in three cases. There were no patients who developed post-chemoembolization skin rash. Two cadavers were dissected to investigate the anastomosis between the HFLA and the subcutaneous artery. Two different anastomoses were found: (1) direct and (2) via the ensiform branch of the internal thoracic artery. These were located at the lower and upper part of the falciform ligament, respectively. The distribution of a chemotherapeutic agent through these anastomoses is the likely cause of post-chemoembolization skin rash. If prophylactic embolization of the proximal portion of the HFLA using a metallic coil is performed, the skin rash will be prevented.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 20 (1999), S. 367-371 
    ISSN: 1279-8517
    Keywords: Hepatic Artery ; Liver Cirrhosis ; Collateral Circulation ; Dermatitis ; Embolization ; Therapeutic
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The hepatic falciform ligament artery (HFLA) was evaluated by angiography and also by dissections. Based on the findings, the mechanism of the post-chemoembolization skin rash was studied. A total of 340 liver cirrhosis patients who underwent hepatic artery chemoembolization for hepatocellular carcinoma were reviewed in terms of the angiographic incidence of the HFLA, variations in its origin, and the incidence of skin rash. The HFLA was demonstrated in 26 (7.6%) of the 340 patients on angiography. Two HFLAs were observed in one patient. The origin was the middle hepatic artery (A4) in 16 cases, the superior branch of the middle hepatic artery in three, the inferior branch of the middle hepatic artery in two, the inferior branch of the left hepatic artery (A3) in three, and the confluence of A3 and A4 in three cases. There were no patients who developed post-chemoembolization skin rash. Two cadavers were dissected to investigate the anastomosis between the HFLA and the subcutaneous artery. Two different anastomoses were found: (1) direct and (2) via the ensiform branch of the internal thoracic artery. These were located at the lower and upper part of the falciform ligament, respectively. The distribution of a chemotherapeutic agent through these anastomoses is the likely cause of post-chemoembolization skin rash. If prophylactic embolization of the proximal portion of the HFLA using a metallic coil is performed, the skin rash will be prevented.
    Type of Medium: Electronic Resource
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