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Utility of Diffusion-weighted MR Imaging for Evaluating the Depth of Invasion in Oral Tongue Squamous Cell Carcinoma
CONCLUSION: DOI on DWI exhibits a comparatively higher rate of concordance with pDOI. DWI may be more useful than other MRI sequences in evaluating the DOI of OTSCC.PMID:38447989 | DOI:10.2463/mrms.mp.2023-0137 (Source: Magnetic Resonance in Medical Sciences : MRMS)
Source: Magnetic Resonance in Medical Sciences : MRMS - March 6, 2024 Category: Radiology Authors: Hiroki Tanaka Sho Koyasu Masahiro Kikuchi Mami Iima Koichi Omori Yuji Nakamoto Source Type: research

4D Flow MRI Reflects Physiological Hemodynamics for the Diagnosis and Management of Portosystemic Shunts
Magn Reson Med Sci. 2024 Feb 29. doi: 10.2463/mrms.ici.2023-0161. Online ahead of print.ABSTRACTA woman in her sixties with portosystemic shunt and hepatic encephalopathy underwent open mesenteric vein ligation, resulting in improved portal flow and blood ammonia. In this case, 4D flow MRI was a valuable diagnostic and follow-up tool, visualizing and quantifying physiological portal hemodynamics with features distinct from those of contrast-enhanced CT and digital subtraction angiography. Our case study highlights the value of 4D flow MRI for managing portosystemic shunts.PMID:38417875 | DOI:10.2463/mrms.ici.2023-0161 (Sou...
Source: Magnetic Resonance in Medical Sciences : MRMS - February 28, 2024 Category: Radiology Authors: Atsushi Higaki Akira Yamamoto Toshimasa Okada Tomio Ueno Yasuyuki Tomiyama Kosuke Ito Tsutomu Tamada Source Type: research

Histological Properties of a Chemically Fixed Human Embryo Visualized with Quantitative Susceptibility Mapping
Magn Reson Med Sci. 2024 Feb 27. doi: 10.2463/mrms.tn.2023-0149. Online ahead of print.ABSTRACTA chemically fixed Carnegie stage 23 (approximately 56 days of gestation) human embryo specimen was imaged using 3D spin-echo and gradient-echo sequences in a static magnetic field strength of 4.74T, and a quantitative susceptibility map was calculated using the 3D gradient-echo image. The acquired 3D microscopic images (90 μm cube voxel size) clarified the relationship between R2 (transverse relaxation rate), R2* (apparent transverse relaxation rate), and magnetic susceptibility in the heart, liver, kidney, and spinal cord. The...
Source: Magnetic Resonance in Medical Sciences : MRMS - February 28, 2024 Category: Radiology Authors: Toru Shirai Yasuhiko Terada Katsumi Kose Shigehito Yamada Source Type: research