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  • 1
    Electronic Resource
    Electronic Resource
    Intraoperative Gamma Detection Of125I-Lanreotide in Women With Primary Breast Cancer (1999)
    Springer
    Annals of surgical oncology 6 (1999), S. 367-372 
    Details
    ISSN: 1534-4681
    Keywords: Somatostatin receptors ; Gamma radiation ; Breast cancer ; Somatostatin analogs ; 125Iodine.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Somatostatin receptors are present in most human breast cancers. We performed a pilot trial of intraoperative tumor-gamma detection using the radiolabeled somatostatin analog 125I-lanreotide in 13 women with 14 primary breast carcinomas. Methods: All patients were given125I-lanreotide intravenously before surgery. Patients underwent lumpectomy, and postresection margins were evaluated with the gamma probe. Axillary dissection specimens were evaluated ex vivo. Results: Seven of 13 women had gamma probe-positive or clinically suspicious margins reexcised at the time of lumpectomy. Four of six probe-positive margins were histologically positive, and two of six probe-positive margins were histologically negative; a single clinically suspicious margin was histologically positive. A total of 270 axillary lymph nodes were evaluated ex vivo by gamma probe and histology. McNemar’s contingency tests demonstrated a highly statistical correlation between histology and gamma probe counts (P 〈 .0001). Conclusions: The overall accuracy of nodal evaluation with125I-lanreotide/intraoperative gamma detection was 77%; the negative predictive value of this technique was 97%, however. This technique predicted the presence of tumor in 20% of axillary lymph nodes that were negative by routine histology. This technique appears safe and is able to detect positive tumor resection margins and accurately predict axillary lymph node negativity. Further trials of this technique are required to validate its utility.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s10434-999-0367-y
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  • 2
    Electronic Resource
    Electronic Resource
    New stable microwave plasma passivated a-Si MIS cells with high open circuit voltage (1988)
    Springer
    Applied physics 46 (1988), S. 31-34 
    Details
    ISSN: 1432-0630
    Keywords: 81.60.-j ; 72.80.Ng ; 84.60.Jt
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A new microwave plasma surface passivation technique has been applied to a-Si∶H type solar cells at various low pressure O2 and H2O atmospheres. Open circuit voltageV OC close to 900 mV and in excess of 900 mV are obtained with Ir, and with Pt, respectively, as continuous barrier metals. The corresponding unpassivated cells (Schottky type solar cells) show considerably lower values ofV OC=650 mV. In contrast to published results involving Ni, Pd, Zr, and other metals as Schottky barriers, we have observed over a period of several months a remarkably good stability of the passivated devices.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00615134
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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