ArticleMagnetic resonance in medicine2022
Pulse encoding for ZTE imaging: RF excitation without dead-time penalty.
Article in Magnetic resonance in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Enhanced bone assessment of the shoulder using zero-echo time MRI with deep-learning image reconstruction.Skeletal radiology · 2024Article
- Zero-TE MRI: principles and applications in the head and neck.The British journal of radiology · 2022Review
- Pulse encoding for ZTE imaging: RF excitation without dead-time penalty.Magnetic resonance in medicine · 2022Article
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Authors and funding
3 authors.
Funding
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Abstract
purposeTo overcome limitations in the duration of RF excitation in zero-TE (ZTE) MRI by exploiting intrinsic encoding properties of RF pulses to retrieve data missed during the dead time caused by the pulse.
methodsAn enhanced ZTE signal model was developed using multiple RF pulses, which enables accessing information hidden in the pulse-induced dead time via encoding intrinsically applied by the RF pulses. Such ZTE with pulse encoding was implemented by acquisition of two ZTE data sets using excitation with similar frequency-swept pulses differing only by a small off-resonance in their center frequency. In this way, the minimum scan time is doubled but each acquisition contributes equally to the SNR, as with ordinary averaging. The method was demonstrated on long-T
resultsZTE with pulse encoding provided good image quality at unprecedented dead-time gaps, demonstrated here up to 6 Nyquist dwells. In head imaging, the ability to use longer excitation pulses led to approximately 2-fold improvements in SNR efficiency as compared with conventional ZTE and allowed the creation of T
conclusionExploiting intrinsic encoding properties of RF pulses in a new signal model enables algebraic reconstruction of ZTE data sets with large dead-time gaps. This permits larger flip angles, which can be used to achieve enhanced T
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