Morphology and morphometry of fetal liver at 16-26 weeks of gestation by magnetic resonance imaging: Comparison with embryonic liver at Carnegie stage 23

2012 ◽  
Vol 43 (6) ◽  
pp. 639-647 ◽  
Author(s):  
Yui Hamabe ◽  
Ayumi Hirose ◽  
Shigehito Yamada ◽  
Chigako Uwabe ◽  
Tomohisa Okada ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Fetal Liver ◽  
Embryonic Liver ◽  
Resonance Imaging ◽  
Morphology And Morphometry ◽  
Carnegie Stage

scholarly journals Development of Helical Myofiber Tracts in the Human Fetal Heart: Analysis of Myocardial Fiber Formation in the Left Ventricle From the Late Human Embryonic Period Using Diffusion Tensor Magnetic Resonance Imaging

2020 ◽  
Vol 9 (19) ◽  
Author(s):  
Saori Nishitani ◽  
Narisa Torii ◽  
Hirohiko Imai ◽  
Ryo Haraguchi ◽  
Shigehito Yamada ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Fractional Anisotropy ◽  
Diffusion Tensor ◽  
Helix Angle ◽  
Left Ventricular ◽  
Outer Side ◽  
Resonance Imaging ◽  
Embryonic Period ◽  
Carnegie Stage

Background Detection of the fiber orientation pattern of the myocardium using diffusion tensor magnetic resonance imaging lags ≈12 weeks of gestational age (WGA) behind fetal myocardial remodeling with invasion by the developing coronary vasculature (8 WGA). We aimed to use diffusion tensor magnetic resonance imaging tractography to characterize the evolution of fiber architecture in the developing human heart from the later embryonic period. Methods and Results Twenty human specimens (8–24 WGA) from the Kyoto Collection of Human Embryos and Fetuses, including specimens from the embryonic period (Carnegie stages 20–23), were used. Diffusion tensor magnetic resonance imaging data were acquired with a 7T magnetic resonance system. Fractional anisotropy and helix angle were calculated using standard definitions. In all samples, the fibers ran helically in an organized pattern in both the left and right ventricles. A smooth transmural change in helix angle values (from positive to negative) was detected in all 16 directions of the ventricles. This feature was observed in almost all small (Carnegie stage 23) and large samples. A higher fractional anisotropy value was detected at the outer side of the anterior wall and septum at Carnegie stage 20 to 22, which spread around the ventricular wall at Carnegie stage 23 and in the early fetal samples (11–12 WGA). The fractional anisotropy value of the left ventricular walls decreased in samples with ≥13 WGA, which remained low (≈0.09) in larger samples. Conclusions From the human late embryonic period (from 8 WGA), the helix angle arrangement of the myocardium is comparable to that of the adult, indicating that the myocardial structure blueprint, organization, and integrity are already formed.

Magnetic Resonance Imaging Morphology and Morphometry of the Coccyx in Coccydynia

Spine ◽  
2013 ◽  
Vol 38 (23) ◽  
pp. E1437-E1445 ◽  
Author(s):  
Jason T. K. Woon ◽  
Jean-Yves Maigne ◽  
Vivekanandan Perumal ◽  
Mark D. Stringer
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Morphology And Morphometry

Prenatal diagnosis of a fetal liver mass utilizing targeted sonography and magnetic resonance imaging

2003 ◽  
Vol 29 (5) ◽  
pp. S136
Author(s):  
J.M. Mastrobattista ◽  
P.D. Berens ◽  
V.L. Schumacher ◽  
J. Metcalf ◽  
L. Kramer
Keyword(s):  
Magnetic Resonance Imaging ◽  
Prenatal Diagnosis ◽  
Magnetic Resonance ◽  
Fetal Liver ◽  
Resonance Imaging ◽  
Liver Mass

Human developmental anatomy: Microscopic magnetic resonance imaging (μMRI) of four human embryos (from Carnegie Stage 10 to 20)

2014 ◽  
Vol 196 (6) ◽  
pp. 402-409 ◽  
Author(s):  
Martin Lhuaire ◽  
Agathe Martinez ◽  
Hervé Kaplan ◽  
Jean-Marc Nuzillard ◽  
Yohann Renard ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Human Embryos ◽  
Resonance Imaging ◽  
Developmental Anatomy ◽  
Carnegie Stage

scholarly journals OC31.05: Fetal liver volume assessment using magnetic resonance imaging in fetuses with CMV infection

2019 ◽  
Vol 54 (S1) ◽  
pp. 82-83
Author(s):  
A. Hawkins ◽  
E. Eixarch ◽  
A. Moreno‐Espinosa ◽  
N.M. Hahner ◽  
A. Nadal ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Fetal Liver ◽  
Liver Volume ◽  
Resonance Imaging ◽  
Cmv Infection ◽  
Volume Assessment

Measurement of fetal liver, brain and placental volumes with echo-planar magnetic resonance imaging

1995 ◽  
Vol 102 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Philip N. Baker ◽  
Ian R. Johnson ◽  
Penny A. Gowland ◽  
Jonathan Hykin ◽  
Valerie Adams ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Fetal Liver ◽  
Resonance Imaging ◽  
Echo Planar
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