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  • 1
    Electronic Resource
    Electronic Resource
    Mucocele of the appendix: ultrasonographic and CT findings (1998)
    Springer
    Abdominal imaging 23 (1998), S. 292-296 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Appendix—Mucocele—Tumor—US—CT.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: Mucocele of the appendix is a rare disease entity, but preoperative diagnosis is very important. With the advent of ultrasonography (US) and computed tomography (CT), it has been possible to preoperatively diagnose mucocele of the appendix. We describe the spectrum of US and CT findings of mucocele of the appendix and the differential points from mimicking diseases. Methods: We evaluated 17 patients with pathologically proven mucocele of the appendix by using US and CT. Pathologic diagnoses of 17 patients were mucinous cystadenoma in 11 patients, mucinous cystadenocarcinoma in two, and mucosal hyperplasia in four. We analyzed morphologic characteristics of mucocele of the appendix at US and CT. Results: The typical US finding were a cystic mass with variable internal echogenicity, layered wall, and calcification in the wall. The CT finding was a well-encapsulated cystic mass with a wall of variable thickness. Both cases with focal nodular solid enhancing portion in the wall on CT were pathologically proven as mucinous cystadenocarcinoma. Conclusion: US and CT were useful methods in diagnosing mucocele of the appendix and differentiating this condition from mimicking diseases. Nodular enhancing lesion in the wall of the mucocele may be a finding suggestive of malignant cause of mucocele.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900343
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  • 2
    Electronic Resource
    Electronic Resource
    Iodized oil retention due to postbiopsy arterioportal shunt: a false positive lesion in the investigation of hepatocellular carcinoma (1999)
    Springer
    Abdominal imaging 24 (1999), S. 165-170 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver CT—Liver, biopsy—Liver, blood flow—Liver, interventional procedure.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: Iodized-oil computed tomography (CT) is useful for the diagnosis of hepatocellular carcinoma, but there may be false-positive results in patients who have undergone some percutaneous transhepatic interventional procedures. The purpose of the present study was to verify the correlation between subsegmental hepatic parenchymal retention of iodized oil on CT and the arterioportal shunt caused by liver biopsy. Methods: Iodized-oil CT scans were reviewed in 24 patients with hepatic tumors who had liver biopsy and subsequent iodized oil chemoembolization. Iodized oil chemoembolization was performed shortly after biopsy (1–10 days; mean = 2.6 days). The results were correlated with hepatic arteriography, with a special emphasis on the presence of hepatic arterioportal shunt. Results: Wedge-shaped subsegmental retention of iodized oil along or adjacent to the biopsy needle path was observed in iodized-oil CT in 17 of the 24 patients. In three patients, there was subsegmental enhancement on prebiopsy helical dynamic liver CT at the same area of iodized oil retention, and therefore iodized oil retention was considered to be due to hepatocellular carcinoma. In the remaining 13 (54%) patients, the peripheral iodized oil retention was considered to be due to biopsy-induced arterioportal shunt. In all these patients, arterioportal shunt was confirmed by hepatic arteriography. Conclusion: Wedge-shaped hepatic parenchymal retention of iodized oil is commonly observed in iodized-oil CT due to biopsy-induced arterioportal shunt, and this appearance should not be confused with a hepatocellular carcinoma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900468
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  • 3
    Electronic Resource
    Electronic Resource
    Needle-tract implantation in hepatocellular carcinoma: frequency and CT findings after biopsy with a 19.5-gauge automated biopsy gun (2000)
    Springer
    Abdominal imaging 25 (2000), S. 246-250 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver neoplasms—Biopsies, percutaneous—Biopsies, complications—Computed tomography.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Needle-tract implantation is an important complication of cutting biopsy of hepatocellular carcinoma (HCC). This study was performed to evaluate the frequency of needle-tract implantation after ultrasound (US)-guided percutaneous biopsy of HCC and to describe triple-phase helical computed tomographic (CT) findings of implanted nodules. Methods: Between April 1994 and December 1997, 205 patients underwent US-guided percutaneous biopsy for HCC. Review of medical records and the pathology database disclosed seven patients who were found to have needle-tract implantation of HCC. Among these patients, five underwent triple-phase helical CT examination. We analyzed the frequency of needle-tract implantation and triple-phase helical CT findings of implanted nodules, with particular attention to the morphology and enhancement pattern. Results: Seven of 205 patients (3.4%) had tumor implantation along the needle tract at histologic examination after surgical resection. Eight implanted nodules in five patients were found on triple-phase helical CT images (one nodule in three patients, two nodules in one patient, and three nodules in one patient). All implanted nodules has well-circumscribed margins and were ovoid or lobulated in contour. On triple-phase helical CT, six (75%) implanted nodules were isodense compared with abdominal wall muscle on all triple-phase CTs, and two (25%) nodules were hyperdense on hepatic arterial and portal venous phases and isodense on equilibrium phase. Conclusions: The frequency of needle-tract implantation of HCC after percutaneous needle biopsy was higher than reported previously, and careful attention should be paid during interpretation of CT images in patients with a history of previous percutaneous biopsy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002610000025
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  • 4
    Electronic Resource
    Electronic Resource
    Necrotic granuloma of the liver by human fascioliasis: imaging findings (1999)
    Springer
    Abdominal imaging 24 (1999), S. 462-464 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver, infection—Liver, US—Liver, CT—Liver, MRI—Parasites.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a case of necrotic granuloma of the liver by human fascioliasis. The lesion showed unusual findings at sonography, computed tomography, and magnetic resonance imaging that have not been reported previously.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900540
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  • 5
    Electronic Resource
    Electronic Resource
    Distribution of lipopolysaccharide, an indicator of bacterial biomass, in subtropical areas of the sea (1983)
    Springer
    Marine biology 76 (1983), S. 257-262 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Lipopolysaccharide (LPS) concentrations, an indicator of bacterial biomass, were determined in the South China Sea and the Pacific Ocean. The distribution patterns of LPS were compared with those of chlorophyll a (Chl a), zooplankton biomass and the concentrations of several nutrients. LPS and total bacterial numbers in seawater were correlated with each other with a correlation coefficient (r) of 0.84 at Stations 7, 8 and 10. Diurnal fluctuation of LPS was negligible, but Chl a varied slightly in the vertical water column. Zooplankton stayed at a depth of around 400 m during the daytime and ascended quickly to the surface (0–50 m) early in the evening. The profiles of LPS and Chl a were negatively correlated to each other in the water layers above the Chl a maximum peak (r=-0.74; excluding the samples from 75 m at Station 7 and 10 m at Station 11 due to inadequate data for the statistical analysis). LPS and zooplankton biomass during the night-time, in contrast, paralleled each other at 5 stations surveyed (r=0.71). The presence of zooplankton resulted in an increase in bacterial numbers in the seawater in vitro. Based on these results, the factors controlling the occurrence and abundance of bacteria and phyto- and zooplankton in the pelagic sea are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00393026
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  • 6
    Electronic Resource
    Electronic Resource
    Microsatellite DNA markers for genetic mapping in Oreochromis niloticus (1996)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 49 (1996), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The isolation of seven tri-, and 133 di-nucleotide microsatellite markers from a tilapia, Oreochromis niloticus, is described. An efficient methodology for isolating large numbers of such markers and their potential applications in applied aquaculture and evolutionary genetics are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1996.tb00014.x
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  • 7
    Electronic Resource
    Electronic Resource
    Mixed methyl-(2,4-dinitrophenyl)-aminopropanoate: 2-methyl-4-nitroaniline crystal−a new nonlinear optical material (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 6674-6678 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Single crystals of mixed methyl-(2,4-dinitrophenyl)-aminopropanoate (MAP): 2-methyl-4-nitroaniline (MNA) have been grown from solution using a 40:60 mixture of ethanol and ethyl acetate. Formation of an equimolar complex is confirmed by x-ray diffraction studies. The complex crystallizes in the monoclinic space group P21. The lattice parameters are a=6.9196(±0.005) A(ring); b=7.673(±0.008) A(ring); c=18.554(±0.001) A(ring); and β=92.547(±0.006)0. b axis is the unique twofold axis and there are two molecules per unit cell. The molecules stack along the b axis with MAP atop MNA atop MAP. Details of the molecular orientation are given. The Raman spectra also indicate that the parent molecules are not disturbed in the process of crystallization. The second harmonic generation efficiency of the new material for 1064 nm laser radiation is observed to be the same as that of MAP but lower than that of MNA. The latter is attributed to the absorption at 532 nm in the mixed crystal. The melting point determined by differential scanning calorimetry is 104.30 °C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.349840
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  • 8
    Electronic Resource
    Electronic Resource
    Characterization of the α-SnCdTe(110) interface by angle-resolved X-ray photoemission
    Amsterdam : Elsevier
    Surface Science Letters 183 (1987), S. A168 
    Details
    ISSN: 0167-2584
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0167-2584(87)90144-7
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  • 9
    Electronic Resource
    Electronic Resource
    Compositional and structural analysis of aluminum oxide films prepared by plasma-enhanced chemical vapor deposition
    Amsterdam : Elsevier
    Thin Solid Films 237 (1994), S. 57-65 
    Details
    ISSN: 0040-6090
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0040-6090(94)90238-0
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  • 10
    Electronic Resource
    Electronic Resource
    Preparation of hydrogenated amorphous germanium by reactive thermal evaporation
    Amsterdam : Elsevier
    Solid State Communications 53 (1985), S. 993-995 
    Details
    ISSN: 0038-1098
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0038-1098(85)90476-4
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