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  • 1
    Digitale Medien
    Digitale Medien
    Congenital absence and aberrant course of the internal carotid artery (1996)
    Springer
    European radiology 6 (1996), S. 650-654 
    Details
    ISSN: 1432-1084
    Schlagwort(e): Aberrant internal carotid artery ; Congenital absence of the internal carotid artery ; CT ; MRI ; MR angiography
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We retrospectively reviewed the imaging features of an aberrant course of the internal carotid artery (ICA) in one patient and its unilateral absence in four. Absence of the ICA was initially detected by MRI and MR angiography in both patients who underwent these examinations. CT revealed an abnormal or absent carotid canal in all cases. Radiological diagnosis by MRI and MR angiography could play an important role in the diagnosis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00187666
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  • 2
    Digitale Medien
    Digitale Medien
    Bilateral anterior opercular syndrome: Localizing value of SPECT and MRI (1988)
    Springer
    Neuroradiology 30 (1988), S. 579-581 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Operculum syndrome ; Anterior opercular syndrome ; Foix-Chavany-Marie syndrome ; SPECT ; MRI
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Bilateral anterior opercular syndrome is clinically characterized by facio-pharyngo-glossomasticatory diplegia due to bilateral opercular lesions. Reported cases of the syndrome have been relatively rare probably because of difficulty in determining opercular damage on clinical symptoms alone. We report a case of this syndrome in whom bilateral opercular damage could be detected not by CT, but suggested by SPECT, and confirmed by MR imaging.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00339707
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  • 3
    Digitale Medien
    Digitale Medien
    The anterior choroidal artery syndrome (1994)
    Springer
    Neuroradiology 36 (1994), S. 340-345 
    Details
    ISSN: 1432-1920
    Schlagwort(e): Infarcts, anterior choroidal artery ; CT ; MRI ; Angiography
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We reviewed 12 cases of infarcts in the territory of the anterior choroidal artery (AChA) on CT and/or MRI. In each case vascular occlusion in the region was verified angiographically. Although the extent of the lesion on CT/MR images was variable, all were located on the axial images within an arcuate zone between the striatium anterolaterally and the thalamus posteromedially. The distribution of the lesions on mutiplanar MRI conformed well to the territory of the AChA demonstrated microangiographically. The variability of the extent of the infarcts may be explained by variations in the degree of occlusive changes in the AChA or the development of collateral circulation through anastomoses between the AChA and the posterior communicating and posterior cerebral arteries. The extent of the lesion appeared to be closely related to the degree of neurological deficit.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00612114
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  • 4
    Digitale Medien
    Digitale Medien
    Acute transverse myelitis caused by ECHO virus type 18 infection (1995)
    Springer
    European journal of pediatrics 154 (1995), S. 378-380 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Key words Acute transverse ; myelitis ; MRI ; ECHO virus ; type 18 ; Reverse transcriptase ; Polymerase chain reaction
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A 14-year-old boy developed acute quadriplegia, associated with sensory impairment and bowel and urinary dysfunction. MRI of the cervical cord showed diffuse increased signal intensity on T2-weighted images with gadolinium-diethylenetriamine penta-acetic acid enhancement. Based on the clinical presentation and MRI findings, the diagnosis of acute transverse myelitis was made. Enterovirus RNA was amplified from CSF by the reverse transcriptase-polymerase chain reaction. Serum neutralizing antibody to ECHO virus type 18 rose from 1/4 on admission to 1/16 2 months later. Conclusion This is the first reported case of acute transverse myelitis caused by ECHO virus type 18 infection.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s004310050308
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  • 5
    Digitale Medien
    Digitale Medien
    CT and MR imaging of craniopharyngioma (1997)
    Springer
    European radiology 7 (1997), S. 464-469 
    Details
    ISSN: 1432-1084
    Schlagwort(e): Key words: Craniopharyngioma ; MR ; CT
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract. We reviewed imaging findings of CT and MR imaging in 20 cases of surgically confirmed craniopharyngioma in an attempt to determine their relation to patterns of tumor extent. The relationship between these patterns and the frequency of preoperative CT diagnosis and MR imaging diagnosis according to the surgical diagnosis were determined. The CT technique was superior to MR imaging in the detection of calcification. The MR imaging technique was superior to CT for determining tumor extent and provided valuable information about the relationships of the tumor to surrounding structures. Thus, CT and MR imaging have complementary roles in the diagnosis of craniopharyngiomas. In cases of possible craniopharyngioma, noncontrast sagittal T1-weighted images may enable the identification of the normal pituitary, possibly leading to the correct diagnosis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s003300050184
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  • 6
    Digitale Medien
    Digitale Medien
    Acute transverse myelitis caused by ECHO virus type 18 infection (1995)
    Springer
    European journal of pediatrics 154 (1995), S. 378-380 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Acute transverse myelitis ; MRI ; ECHO virus type 18 ; Reverse transcriptase ; Polymerase chain reaction
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract a 14-year-old boy developed acute quadriplegia, associated with sensory impairment and bowel and urinary dysfunction. MRI of the cervical cord showed diffuse increased signal intensity on T2-weighted images with gadolinium-diethylenetriamine penta-acetic acid enhancement. Based on the clinical presentation and MRI findings, the diagnosis of acute transverse myelitis was made. Enterovirus RNA was amplified from CSF by the reverse transcriptase-polymerase chain reaction. Serum neutralizing antibody to ECHO virus type 18 rose from 1/4 on admission to 1/16 2 months later. Conclusion This is the first reported case of acute transverse myelitis caused by ECHO virus type 18 infection.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02072107
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  • 7
    Digitale Medien
    Digitale Medien
    The gas chromatographic mass spectrometric determination of trifluoroacetic acid in biological fluid. Application to halothane metabolismAbbreviations: TFAA = trifluoroacetic acid; DMF-DMA = N,N′-dimethylformamide dimethylacetal; NADPH = nicotinamide adenine dinucleotide phosphate. (1976)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 3 (1976), S. 41-44 
    Details
    ISSN: 1052-9306
    Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The methyl ester of trifluoroacetic acid was prepared by reaction with N,N′-dimethylformamide dimethylacetal and was successfully passed through a gas chromatograph. Trifluoroacetic acid was detected by the use of gas chromatography and low and high resolution gas chromatography mass spectrometry in an acidic extract of an incubation medium containing microsomes, reduced nicotinamide adenine dinucleotide phosphate, oxygen and halothane. However, trifluoroacetic acid could not be detected when nicotinamide adenine dinucleotide or oxygen was omitted from the incubation system. From these results, it was proved that halothane is oxidatively metabolized to trifluoroacetic acid by hepatic microsomes.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/bms.1200030108
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  • 8
    Digitale Medien
    Digitale Medien
    Application of high-performance liquid chromatography/atmospheric pressure ionization mass spectrometry for the analysis of non-volatile compounds (1988)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 16 (1988), S. 331-334 
    Details
    ISSN: 1052-9306
    Schlagwort(e): Chemistry ; Analytical Chemistry and Spectroscopy
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The combination of a high-performance liquid chromatograph and a magnetic type mass spectrometer with an atmospheric ionization source has been applied for analyses of thermolabile compounds, i.e. antibiotics, amino acids and glycosphingolipids.Chromatography was performed on a 4 mm i.d. x 150 mm column packed with 5 μm ODS at a flow rate of 1 ml min-1. The liquid chromatography/atmospheric pressure ionization (LC/API) magnetic-type mass spectrometer provides not only an abundant pseudo-molecular ion but also fragment ions which give a structural information resulting from collision-induced dissociation at the differential pumping region of the liquid chromatograph/mass spectrometer interface. The isomers of kanamycins could be differentiated from each other on the basis of their mass spectra obtained at the relatively higher drift voltage applied. LC/API mass spectra of leucine and isoleucine were very similar, but it was easy to differentiate one from another by checking the existence of the ions at m/z 43 or m/z 57 in their mass spectra. The LC/API mass spectra of glucosylceramides showed [MH]+ ions of good abundance and significant fragment ions useful for chemical characterization at a proper drift voltage setting in a controlled and reproducible manner.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/bms.1200160164
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