| 王达,包尚联.并行磁共振成像GRAPPA-SENSE技术[J].中国医学影像技术,2011,27(8):1688~1693 |
| 并行磁共振成像GRAPPA-SENSE技术 |
| Parallel magnetic resonance image technology of GRAPPA-SENSE |
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| DOI： |
| 中文关键词: GRAPPA算法 SENSE算法 线圈敏感度 |
| 英文关键词:GRAPPA algorithm SENSE algorithm Coil sensitivity |
| 基金项目:国家自然科学基金(30970772)、国家重点基础研究发展计划(973计划)(2011CB707701)、北京市教委共建项目(JD100010607)。 |
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| 中文摘要: |
| 并行磁共振成像技术已在MRI领域被广泛应用。本研究提出一种新的并行成像方法,命名为GRAPPA-SENSE。此法应用GRAPPA (generalized autocalibrating partially parallel acquisitions)算法内插出部分K空间中心未采集数据,生成更为精确的SC-SENSE (self-calibrating sensitivity encoding)重建算法所需的线圈敏感度函数。标准水模实验证明此方法可改善图像质量。 |
| 英文摘要: |
| Parallel magnetic resonance image technology has been widely used in MRI field. A novel method named as GRAPPA-SENSE was proposed in this paper. GRAPPA-SENSE was developed using generalized autocalibrating partially parallel acquisitions (GRAPPA) algorithm to intervene more missing lines in central K-space in order to generate accurate coil sensitivities for self-calibrating sensitivity encoding (SC-SENSE) algorithm. This method was tested by using experimental data of a standard water phantom, and the results demonstrated that the image quality had been improved. |
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