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| 20090039885 | METHOD AND APPARATUS FOR ACQUISITION OF MAGNETIC RESONANCE DATA - In a magnetic resonance method and apparatus for acquisition of measurement data from a subject, k-space to be scanned into an inner region and an outer region, and the inner region is divided into inner segments that differ in terms of their distance from a k-space center and the outer region is divided into outer segments that differ in terms of their distance from a k-space center. First k-space data are acquired for the inner region, wherein k-space lines of the inner region are divided into first groups such that k-space lines from different inner segments are associated in each of the first groups, and the first groups are successively scanned. Second k-space data are acquired for the outer region, wherein k-space lines of the outer region are divided into second groups such that k-space lines from different outer segments are associated in each of the second groups, and the second groups are successively scanned. | 02-12-2009 |
| 20100099978 | Breast coil arrangement for magnetic resonance applications - A breast coil arrangement for magnetic resonance applications has a placement web that is designed to allow an examination subject to lie with her sternum on the placement web. Pot-like breast receptacles for each breast of the examination subject are respectively arranged on opposite sides of the placement web. The breast receptacles have limiting elements whose spacing from one another can be adjusted. Multiple array coils are respectively arranged in the limiting elements and are stationary relative to the limiting elements. Each breast receptacle is surrounded by a volume coil that is stationary relative to the placement web. The volume coils are arranged centrally and orthogonally relative to the array coils and surround the array coils. The volume coils are decoupled from the array coils. A spectroscopy phantom can be arranged in proximity to the placement web. The breast receptacles as a structural unit can be detached individually or together from the placement web, and volume-reducing inserts can be inserted into the breast receptacles. Lateral supplementary placement elements carrying axilla coils can be provided and may be separately deactivated depending on an input option of a user. | 04-22-2010 |
| 20100244830 | MAGNETIC RESONANCE METHOD AND DEVICE TO DIFFERENTIATE AMONG PIXELS REPRESENTING A SILICON-DOMINATED SUBSTANCE, WATER-DOMINATED TISSUE AND FAT-DOMINATED TISSUE - In a magnetic resonance method and device for automatic differentiation of respective pixels as representing either a silicon-dominated substance, or fat-dominated tissue, or water-dominated tissue, a first magnetic resonance signal and a second magnetic resonance signal are acquired per pixel, wherein the first magnetic resonance signal per pixel is acquired at a point in time at which the phase of a magnetic resonance signal originating from water-containing tissue exhibits a phase opposite to the phase of a magnetic resonance signal originating from fat-containing tissue, and the second magnetic resonance signal is acquired per pixel at a point in time at which the phase of the magnetic resonance signal originating from water-containing tissue exhibits a phase identical to the phase of the magnetic resonance signal originating from fat-containing tissue, and the phase of a magnetic resonance signal originating from a silicon-containing substance exhibits a phase opposite to the phase of the magnetic resonance signal originating from water-containing or fat-containing tissue. A first intermediate result is determined that indicates whether the pixel represents water-dominated tissue or fat-dominated tissue on the basis of first magnetic resonance signals. A second intermediate result is determined that indicates whether the pixel represents the silicon-dominated substance on the basis of second magnetic resonance signals. The pixel is designated as representing water-dominated tissue, fat-dominated tissue or the silicon-dominated substance on the basis of the first intermediate result and the second intermediate result. | 09-30-2010 |
| 20110150758 | TRACKING OF BONE MARROW CELLS FOR METASTASIS SCREENING - At least one embodiment of the invention relates to bone marrow precursor cells or bone marrow cells of a patient, the cells labeled with at least one contrast agent suitable for an imaging method, for use in an imaging method for diagnosing a metastasizing cancer, wherein the local accumulation of the labeled precursor cells or bone marrow cells indicates the presence of a metastasizing tumor growth. At least one embodiment also relates to a method for imaging a metastasizing tumor tissue in a patient, wherein a) bone marrow precursor cells or bone marrow cells are extracted from a patient, b) these precursor cells or bone marrow cells are labeled with at least one contrast agent suitable for an imaging method, c) the precursor cells or bone marrow cells thus labeled are retransplanted or reinjected into the patient, and d) the presence of metastasizing tumor cells is depicted with an imaging method. At least one embodiment also relates a method for imaging a metastasizing tumor tissue, wherein a suitable imaging method is used to image bone marrow precursor cells and/or bone marrow cells that are accumulated in a metastasizing tumor tissue and labeled with at least one contrast agent suitable for an imaging method. | 06-23-2011 |
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| 20100302085 | Field Device Having an Analog Output - A field device having an analog output, i.e., a measuring transducer, for process instrumentation having a 4-20 mA interface as the analog output. For digital-to-analog conversion, a digital value is split into a digital coarse portion and a digital fine portion. Depending on the digital coarse portion, a first analog signal is generated using a pulse width modulator having a downstream mounted low path filter and a signal above the analog output signal, and a second output signal using a pulse width modulator also having a downstream mounted low path filter with a signal below the analog output signal. The analog signals are supplied to a third pulse width modulator controlled with the digital fine portion, where a low-pass filter (TP | 12-02-2010 |
| 20100305896 | Field Device for Process Instrumentation - A field device for process instrumentation, in particular a measuring transducer, comprising an analogue output to which a two-wire line is connectable for transmitting an analogue output signal. The output circuit contains a controller with an actuator connected downstream for the analogue output signal. A monitoring unit monitors whether an actuating signal remains within a predeterminable value range to monitor the output circuit for correctly setting the loop current. If the actuating signal is outside the value range, an indicator signal is output to a computing unit so that suitable measures can be introduced in response to an error state that has thus been identified. | 12-02-2010 |
| 20110043189 | Method for the Secure Acquisition of Multiple Analog Input Signals, Analog Input Circuit, and Measuring Sensor and Measuring Transducer Having an Analog Input Circuit of This Type - A method for securely acquiring multiple analog input signals that are converted using a plurality of A/D converters into corresponding digital single measured values. A first measurement averaging cycle having a predetermined total number of measuring intervals is predetermined by a higher-order control unit. First and second input signals are acquired by first and second A/D converters in a first and second number of measuring intervals, the second number being smaller than the first number. The first and second input signals are averaged to form first and second measured values, respectively. The first input signal is acquired by the second A/D converter in a third number of measuring intervals as at least one further single measured value. A message is output if a deviation of the at least one further single measured value from a single measured value of the first input signals measured by the first A/D converter or from the first measured values averaged up to that point exceeds a maximum permissible absolute value of the deviation. | 02-24-2011 |
