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  • 1
    Electronic Resource
    Electronic Resource
    Hepatocellular carcinoma with sarcomatous change: characteristic findings of two-phased incremental CT (1996)
    Springer
    Abdominal imaging 21 (1996), S. 37-40 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver〈+〉—〈+〉Liver, neoplasms〈+〉—〈+〉Hepatocellular carcinoma〈+〉—〈+〉Sarcomatous change〈+〉—〈+〉Computed tomography.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: Because of its poor prognosis, the diagnosis of hepatocellular carcinoma with sarcomatous change (HCCSC) is clinically important. The purpose of this study is to elucidate the characteristic CT findings of HCCSC. Methods: Two-phased dynamic incremental CT images of six histologically proven HCCSC were retrospectively reviewed. Results: All tumors (100%) exhibited peripheral enhancement on delayed CT images. Lymphadenopathy was observed in 100% (six of six patients); intrahepatic metastases, in 83% (five of six). Both metastatic lesions showed findings similar to those of the primary hepatic tumors, such as peripheral enhancement. Histopathologically, delayed and/or prolonged peripherally enhanced areas consisted of viable cancer cells with sarcomatous changes. Conclusions: The appearance of HCCSC on CT is that of an irregularly demarcated intrahepatic mass with delayed or prolonged peripheral enhancement, frequently with intrahepatic metastases and lymphadenopathy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900006
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  • 2
    Electronic Resource
    Electronic Resource
    CT and MR findings of torsion of greater omentum: a case report (1997)
    Springer
    Abdominal imaging 22 (1997), S. 45 -46 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Torsion—Greater omentum—Diagnosis—CT—MR.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We report a case of torsion of the greater omentum, which occurred in a 39-year-old man with an adhesive inguinal hernia. Preoperative computed tomography and magnetic resonance (MR) imaging showed a characteristic whirling fatty mass occupying the middle and lower abdomen anteriorly. MR imaging also showed difference of intensities in the twisted omentum, suggesting the presence of the pathological conditions of edema or congestion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900136
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  • 3
    Electronic Resource
    Electronic Resource
    Adrenal nonhyperfunctioning adenoma and nonadenoma: CT attenuation value as discriminative index (1995)
    Springer
    Abdominal imaging 20 (1995), S. 559-562 
    Details
    ISSN: 1432-0509
    Keywords: Adrenal neoplasms ; Abdomen, CT ; Adrenal adenoma
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background When an asymptomatic adrenal mass is incidentally discovered on abdominal CT scans, the distinction between a nonhyperfunctioning adenoma and a nonadenoma would be important. Methods We evaluated the CT findings of 36 adrenal masses (14 nonhyperfunctioning adenomas, 22 nonadenomas) in 34 patients with no evidence of hormonal hypersecretion. CT attenuation values of adrenal masses on CT scans were calculated by setting a circular region of interest as large as possible in the center of each adrenal mass. Results Below 20 HU in CT attenuation values, all adrenal masses, except one case of ganglioneuroma with myxomatous change, were nonhyperfunctioning adenomas. With an arbitrary threshold of 20 HU, the sensitivity of CT attenuation values in distinguishing nonhyperfunctioning adenomas from nonadenomas was 64%, the specificity was 95%, and the accuracy was 83%. When decreasing the threshold to 15 HU, the sensitivity was 64%, the specificity was 100%, and the accuracy was 86%. The CT attenuation value on noncontrast CT was more useful for making this distinction than the size and interior homogeneity. Conclusions Our data suggest that an asymptomatic adrenal mass with homogeneous low attenuation (≦15 HU) and less than or equal to 4 cm indicates a nonhyperfunctioning adenoma, and no further examinations are necessary. CT attenuation value on non-contrast CT is the most important discriminatory factor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01256711
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  • 4
    Electronic Resource
    Electronic Resource
    MR imaging of hepatocellular carcinomas: effect of Cu and Fe contents on signal intensity (1997)
    Springer
    Abdominal imaging 22 (1997), S. 60 -66 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver, neoplasms—Liver, metal—Magnetic resonance imaging—Hepatocellular carcinoma—Liver, signal intensity. [xm [fs99]
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: To elucidate the metallic factors contributing to the signal intensities of hepatocellular carcinoma (HCC) on T1-weighted magnetic resonance (MR) images and to determine whether or not changes in signal intensity contribute to the diagnosis of histological grading of HCC. Methods: In 35 patients immediately after surgery, the quantities of water, lipid, copper (Cu), iron (Fe), and manganese (Mn) were determined in HCCs and the surrounding hepatic parenchyma. The correlations among these findings, the histopathological findings, and the signal intensities of T1-weighted MR images were evaluated. Results: Among the 35 HCCs, 12 (34%) were of high intensity, 14 (40%) were isointense, and 9 (26%) were of low intensity on T1-weighted images versus the surrounding hepatic parenchyma. The paramagnetic ions, which contributed to the signal intensity patterns, were assumed to be Cu in HCCs (30.5 ± 52.9 μg/g ww), and Fe in the livers (106.2 ± 86.8 μg/g ww) and HCCs (87.7 ± 49.1 μg/g ww). In 12 HCCs with high intensity, one was grade I, eight were grade II, and three were grade III according to Edmondson-Steiner's histopathological classification. Conclusions: Signal intensity and signal intensity patterns alone cannot be signs of low-grade malignancy because of the Fe in livers and in HCCs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900141
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  • 5
    Electronic Resource
    Electronic Resource
    Effects of endotoxin elimination therapy using PMX in patients with septic shock (1996)
    Springer
    Intensive care medicine 22 (1996), S. S36 
    Details
    ISSN: 1432-1238
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Conclusions DHP with PMX appears to be more effective in patients with intraabdominal infection that is mainly derived from GNR and could be drained surgically.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01921210
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  • 6
    Electronic Resource
    Electronic Resource
    Delayed cutaneous hypersensitivity in children with severe multiple handicaps treated with phenytoin (1978)
    Springer
    European journal of pediatrics 129 (1978), S. 273-278 
    Details
    ISSN: 1432-1076
    Keywords: Severe multiple handicaps ; Cutaneous hypersensitivity ; Phenytoin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Peripheral lymphocyte counts, T-cell and B-cell populations, DNCB skin reactions, Mantoux reactions, mitogenic transformation using PHA, and determination of serum phenytoin concentration were carried out in 45 children with severe handicaps. Twenty two of these patients were receiving phenytoin treatment. When compared with control subjects, the skin reactions were significantly depressed in the handicapped children, amongst whom those treated with phenytoin had more impaired reactions than those who were untreated. No significant relationship between the results of the skin reactions and the other parameters was found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00441358
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  • 7
    Electronic Resource
    Electronic Resource
    Age changes in the perception of comfortable mandibular occlusal positions (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 5 (1978), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: It has been shown that a zone of comfort in maxillo-mandibular relationships in edentulous subjects can be identified with some precision. Whilst the neurophysiological mechanism involved has not been explained fully, the phenomenon is influenced by starting position and by fatigue. This experiment was set up to test the hypothesis that age is another significant factor in perception of the comfortable zone.A group of seventeen subjects with a mean age of 62 years and an equivalent younger group, the mean age of which was 28 years, were tested with Timmer screw jacks applied using the central approach to record the upper and lower limits of the zone fifteen times in succession for each subject.A linear statistical model was used to analyse the data from upper and lower borders separately. The results showed that the effect of making successive adjustments, whilst not significant statistically in the young group, was significant in the more elderly. Regression lines from the young group data were horizontal signifying the high degree of accuracy with which their perceptual mechanisms worked: the upwards inclination of those from the more elderly was interpreted as showing that initial appreciations were subjected to constant correction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2842.1978.tb01255.x
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  • 8
    Electronic Resource
    Electronic Resource
    Does a temperature gradient exist across the mucogingival junction? (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 5 (1978), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: On the assumption that the colour difference between attached gingiva and alveolar mucosa is accompanied by a temperature difference, twenty subjects with a high standard of oral health were studied. Five points on either side of the mucogingival junction were examined by means of a thermocouple probe. A mean difference amounting to about 2/3°C was found between the surface temperatures of the two structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2842.1978.tb00394.x
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  • 9
    Electronic Resource
    Electronic Resource
    Mucosal temperature rises following long-term use of full dentures (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 6 (1979), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Mucosal temperatures were studied in twenty-two subjects, who had worn full upper and lower dentures for at least 5 years. By comparing with a group of twenty-two fully dentate subjects, it was found that in the denture wearers, temperatures were increased significantly in the lower jaw, but not in the upper jaw.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2842.1979.tb01505.x
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  • 10
    Electronic Resource
    Electronic Resource
    Electromyographic study of the activity of jaw depressor muscles before initiation of opening movements (1999)
    Oxford, UK : Blackwell Science Ltd
    Journal of oral rehabilitation 26 (1999), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The authors attempted to clarify the primary factors affecting the timing of the initial electromyographic discharges in the jaw depressor muscles (EMG onset). The changes in EMG onset in the inferior head of the lateral pterygoid (Lpt) and the anterior belly of the digastric muscles (Dig) were measured by varying duration of the open–close movement or occlusal force during the open–close–clench cycle (OCC). EMG onset tended to precede the beginning of the opening movement during OCC. The duration of opening and closing phase and the duration of occluding phase showed no significant correlation with the time-lag between EMG onset and the beginning of the opening movement (onset time).The mean EMG activity of the masseter muscle (Mm), corresponding to the occlusal force, showed a highly significant correlation with the onset time. The maximal opening velocity was highly correlated with the mean EMG activity of the jaw depressors before jaw opening. In conclusion, it was found that occlusal force is a major factor in EMG onset in the jaw depressors. It is suggested that smooth opening needs tooth contact with some degree of occlusal force.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2842.1999.00401.x
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