Author

Toshiki Tateishi

3 papers indexed here

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Sep 2026

Acceleration-dependent variability in simultaneous T1/T2 mapping with a hybrid (mixed) sequence: a phantom comparison of SENSE, compressed sensing, and deep learning reconstructions.

BACKGROUND/PURPOSE Simultaneous T1/T2 mapping with hybrid (mixed) sequences has been proposed, but clinical use is limited by long acquisition times. Accelerated reconstruction-parallel imaging (PI; SENSE), compressed sensing (CS), and deep learning (DL)-allows shorter scans but may alter quantitative values and image...

M. Kanamoto, Yuki Matta, Toshiki Tateishi et al. · Magnetic Resonance Imaging · 0 citations

Sep 2026

Enhancing accuracy and precision of arterial cerebral blood volume imaging in patients with moyamoya disease: Integration of long-labeled long-delay acquisition into DANTE-prepared multi-delay arterial spin labeling.

BACKGROUND Combining the delays alternating with nutation for tailored excitation (DANTE) pulse with multi-delay arterial spin labeling (MD-ASL) enables arterial cerebral blood volume (CBVa) quantification. However, CBVa estimation may be compromised in moyamoya disease (MMD) because of prolonged arterial transit time...

Yuki Matta, Shota Ishida, M. Isozaki et al. · Journal of Neuroscience Meth... · 0 citations

Open access Jul 2026

Single-Phase Surrogate for True Non-Contrast Liver CT Using 190-keV Monoenergetic Imaging on Photon-Counting CT: Implications for Hepatic Steatosis Assessment.

RATIONALE AND OBJECTIVES To evaluate whether 190-keV virtual monoenergetic imaging (VMI) using photon-counting detector CT (PCD-CT) can serve as a surrogate for true non-contrast (TNC) in hepatic steatosis quantification and to compare its attenuation agreement with virtual non-contrast (VNC). METHODS Forty-nine pati...

Takashi Ohtani, Masato Shimada, Kaede Nishiyama et al. · Academic Radiology · 0 citations