Surgery – Diagnostic testing – Measuring electrical impedance or conductance of body portion
Reexamination Certificate
2007-04-24
2007-04-24
Hindenburg, Max F. (Department: 3736)
Surgery
Diagnostic testing
Measuring electrical impedance or conductance of body portion
Reexamination Certificate
active
10336456
ABSTRACT:
In a method for localizing at least one focal lesion in a biological tissue section, the lesion exhibiting an electrical property different from the tissue section and the electrical property in the tissue section being essentially constant, a sequence of electrical excitation signals with different frequency is applied to the tissue section, electrical response signals at a number of measurement locations at a surface of the tissue section are measured that occur thereat due to the excitation signals, frequency-independent signal parts in the response signals are determined and further-processed input values of a localization step. Modeling of the tissue section and a determination of a set of lead fields are based on the input values. The lead fields transformed. The frequency-independent signal parts are compared to the transformed lead fields in the localization step, and the location of the transformed lead fields that best reproduce the frequency-independent signal parts is output as location of the lesion.
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patent: WO 99/48422 (1999-09-01), None
Towards Virtual Electrical Breast Biopsy: Space-Frequency MUSIC for Trans-Admittance Data—Scholz IEEE Trans. on Medical Imaging, vol. 21, No. 6 Jun. 2002 pp. 588-595.
Hindenburg Max F.
Schiff & Hardin LLP
Siemens Aktiengesellschaft
Smith Fangemonique
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