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Data from: Investigation of parallel radiofrequency transmission for the reduction of heating in long conductive leads in 3 tesla magnetic resonance imaging

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Mendeley Data2024-06-25 更新2024-06-27 收录
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https://datadryad.org/stash/dataset/doi:10.5061/dryad.53bh1
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Axial Image with 4-element PTX coil in suppression modeAxial slice through center of phantom obtained with GRE sequence (TR = 2000 ms, TE = 40 ms, slice thickness = 10 mm, in-plane resolution = 256x256, FOV = 24 cm) with 4-Element PTX operating in suppression mode (phase shifts of 40, 16, 200 and 301 degrees). Dicom file for image shown in manuscript.AxialGREwPTX.dcmCoil GeometryContains specs about the geometry of the coil configurations (including capacitance values) for the simulations.CoilGeometry.txtBirdcage HeatingTemperature probe measurements for heating at tip of wire 12 cm long copper wire in a polyacrylic acid cylindrical phantom (radius = 9 cm, height = 24 cm) using FRFSE sequence (TR = 559 ms, TE = 100 ms, echo train length = 24, 1 slice, imaging time = 4:08). Excitation with transmit/receive GE birdcage coil with transmit gain of 153.PTx Quadrature HeatingTemperature probe measurements for heating at tip of wire 12 cm long copper wire in a polyacrylic acid cylindrical phantom (radius = 9 cm, height = 24 cm) using FRFSE sequence (TR = 559 ms, TE = 100 ms, echo train length = 24, 1 slice, imaging time = 4:08). Excitation with 4-element parallel transmit coil with phase shifts of 0, 90, 180 and 270 degrees between elements with transmit gain of 195PTx Quad Heating Test 1 TX195.txtPTx Suppression Heating Test 1Temperature probe measurements for heating at tip of wire 12 cm long copper wire in a polyacrylic acid cylindrical phantom (radius = 9 cm, height = 24 cm) using FRFSE sequence (TR = 559 ms, TE = 100 ms, echo train length = 24, 1 slice, imaging time = 4:08). Excitation with 4-element parallel transmit coil with phase shifts of 40, 16, 200 and 301 degrees (suppression mode) with a transmit gain of 190PTx Suppression Heating Test 2Temperature probe measurements for heating at tip of wire 12 cm long copper wire in a polyacrylic acid cylindrical phantom (radius = 9 cm, height = 24 cm) using FRFSE sequence (TR = 559 ms, TE = 100 ms, echo train length = 24, 1 slice, imaging time = 4:08). Excitation with 4-element parallel transmit coil with phase shifts of 40, 16, 200 and 301 degrees (suppression mode) with a transmit gain of 187. Second measurement.E-field increase as function of wire positionFolder containing two files with % increase in E-field magnitude at tip of wire vs minimum in field of view for varying radial position (RposRatio.csv) and z position (ZposRatio.csv)WirePos.zipSimulation data for wire at r = 2.5 cm, z = 0 cm (E-field and H-field)Contains simulation data for wire positions r = 2.5 cm, z = 0 cm. Includes data for a 16-rung birdcage coil operating in quadrature mode and a 2-element PTX coil, 4-element PTX coil and 8-element PTX operating in suppression mode (amplitudes and phases found in manuscript). Each folder contains a folder named 'XY plane' corresponding to data in the z = 0 cm plane, x = -10 cm to x = 10 cm, y = -10 cm to 10 cm and 'YZ plane' corresponding to data in the x = 0 cm plane, z = -12 cm to 1 cm, y = -10 cm to 10 cm. Each file is named: _.txt. The files are space delimited. Header of 15 lines.Leadat25mm.zipSimulation data for wire at r = 8 cm, z = 2 cm (E-field and H-field)Contains simulation data for wire positions r = 8 cm, z = 2 cm. Includes data for a 16-rung birdcage coil operating in quadrature mode and a 2-element PTX coil, 4-element PTX coil and 8-element PTX operating in suppression mode (amplitudes and phases found in manuscript). Each folder contains a folder named 'XY plane' corresponding to data in the z = 0 cm plane, x = -10 cm to x = 10 cm, y = -10 cm to 10 cm and 'YZ plane' corresponding to data in the x = 0 cm plane, z = -12 cm to 1 cm, y = -10 cm to 10 cm. Each file is named: _.txt. The files are space delimited. Header of 15 linesLeadat80mmz2cm.zipSimulation data for wire at r = 7.5 cm, z = 0 cm (E-field and H-field)Contains simulation data for wire positions r = 7.5 cm, z = 0 cm. Includes data for a 16-rung birdcage coil operating in quadrature mode and a 2-element PTX coil, 4-element PTX coil and 8-element PTX operating in suppression mode (amplitudes and phases found in manuscript). Each folder contains a folder named 'XY plane' corresponding to data in the z = 0 cm plane, x = -10 cm to x = 10 cm, y = -10 cm to 10 cm and 'YZ plane' corresponding to data in the x = 0 cm plane, z = -12 cm to 1 cm, y = -10 cm to 10 cm. Each file is named: _.txt. The files are space delimited. Header of 15 linesLeatat75mm.zip
创建时间:
2023-06-28
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