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Recording of Magnetic Resonance Data in Order to Prevent Cropping Effects

发明专利审中
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14权利要求 · 3 独立
§ Ⅰ

卷宗概要

发明人

David Grodzki; Uvo Hölscher

IPC 分类

A61B 5/55G6T 5/10G6T 5/80G6T 11/G16H 30/40

CPC 分类

A61B5/55G6T5/10G6T5/80G6T11/6G16H30/40

Techniques are described for recording of magnetic resonance data to prevent cropping effects. A loss factor indicates an expected reduction of an image reconstructed on the basis of measurement data recorded using the loaded measurement protocol and determines filter parameters for a frequency filter for filtering frequencies of echo signals, received when recording measurement data with the measurement protocol, on the basis of the loss factor and on the basis of the desired field of view, and determines an oversampling factor on the basis of the filter parameters of the frequency filter. The oversampling factor specifies an oversampling to be applied when recording of measurement data. Oversampled measurement data is recorded using the determined filter parameters and the oversampling factor when implementing the loaded measurement protocol.

原文(中文)

Techniques are described for recording of magnetic resonance data to prevent cropping effects. A loss factor indicates an expected reduction of an image reconstructed on the basis of measurement data recorded using the loaded measurement protocol and determines filter parameters for a frequency filter for filtering frequencies of echo signals, received when recording measurement data with the measurement protocol, on the basis of the loss factor and on the basis of the desired field of view, and determines an oversampling factor on the basis of the filter parameters of the frequency filter. The oversampling factor specifies an oversampling to be applied when recording of measurement data. Oversampled measurement data is recorded using the determined filter parameters and the oversampling factor when implementing the loaded measurement protocol.