Abstract: The present disclosure discloses a method for synthesizing high-quality magnetic resonance images, wherein the method expands the value ranges of echo time TE and repetition time TR in a magnetic resonance signal formula to negative intervals, and expands the contribution of proton density PD to a negative power. The method can effectively reduce the influence of the measurement error of quantitative magnetic resonance imaging tissue parameters on the tissue contrast of the synthetic magnetic resonance image, and can obviously improve the tissue contrast of the synthetic magnetic resonance image. This method will significantly improve the imaging quality of synthetic magnetic resonance imaging, and promote its detection effect in neuroscience and clinical lesions. This method is expected to improve the imaging quality of synthetic magnetic resonance imaging and promote its detection effect in neuroscience and clinical lesions.

Abstract: The present disclosure discloses a method for measuring relaxation time of ultrashort echo time magnetic resonance fingerprinting. In the method, semi-pulse excitation and semi-projection readout are adopted to shorten echo time (TE) to achieve acquisition of an ultrashort T2 time signal; and image acquisition and reconstruction are based on magnetic resonance fingerprint imaging technology. A TE change mode of sinusoidal fluctuation is introduced, so that distinguishing capability of a magnetic resonance fingerprint signal to short T2 and ultrashort T2 tissues is improved, and multi-parameter quantitative imaging of the short T2 and ultrashort T2 tissues and long T2 tissues is realized.

Abstract: The present disclosure discloses a method for measuring relaxation time of ultrashort echo time magnetic resonance fingerprinting. In the method, semi-pulse excitation and semi-projection readout are adopted to shorten echo time (TE) to achieve acquisition of an ultrashort T2 time signal; and image acquisition and reconstruction are based on magnetic resonance fingerprint imaging technology. A TE change mode of sinusoidal fluctuation is introduced, so that distinguishing capability of a magnetic resonance fingerprint signal to short T2 and ultrashort T2 tissues is improved, and multi-parameter quantitative imaging of the short T2 and ultrashort T2 tissues and long T2 tissues is realized.

Abstract: The present disclosure discloses a method for synthesizing high-quality magnetic resonance images, wherein the method expands the value ranges of echo time TE and repetition time TR in a magnetic resonance signal formula to negative intervals, and expands the contribution of proton density PD to a negative power. The method can effectively reduce the influence of the measurement error of quantitative magnetic resonance imaging tissue parameters on the tissue contrast of the synthetic magnetic resonance image, and can obviously improve the tissue contrast of the synthetic magnetic resonance image. This method will significantly improve the imaging quality of synthetic magnetic resonance imaging, and promote its detection effect in neuroscience and clinical lesions. This method is expected to improve the imaging quality of synthetic magnetic resonance imaging and promote its detection effect in neuroscience and clinical lesions.