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The aims of this study were two: (1) to compare the efficacy of fast MRI (breath-hold fast spin-echo T2-weighted and fast gradient-echo T1-weighted sequence) and ultrafast MRI (half-Fourier acquisition single-shot turbo spin-echo sequence) in evaluation of fetal central nervous system (CNS) abnormalities at late gestational age, and (2) to compare the capability of fast MRI and ultrafast MRI to assess fetal CNS abnormalities with that of prenatal ultrasonography (US). Forty-nine women with fetuses at gestational ages of 26-39 weeks underwent fast MRI (29 patients) or ultrafast MRI (20 patients). In detection of motion artifact, visualization of the lateral and 4th ventricles, and differentiation between gray and white matter in cerebral hemispheres, ultrafast MRI was significantly superior to fast MRI (p< 0.0001, Mann-Whitney U test). In 25 of 43 cases, US and MR diagnoses were the same and consistent with postnatal diagnosis. In 10 of 43 cases, MRI demonstrated findings additional to or different from those of US, and MR findings were confirmed postnatally. MRI, particularly ultrafast MRI, is useful for demonstrating CNS abnormalities in situations in which US is suggestive but not definitive.
M Shakudo, and
Y Inoue, and
K Mochizuki, and
T Manabe, and
K Mura, and
R Matsu, and
J Oda, and
R Yamada
October 2003,
Radiology,
M Shakudo, and
Y Inoue, and
K Mochizuki, and
T Manabe, and
K Mura, and
R Matsu, and
J Oda, and
R Yamada
December 2002,
Brain and cognition,
M Shakudo, and
Y Inoue, and
K Mochizuki, and
T Manabe, and
K Mura, and
R Matsu, and
J Oda, and
R Yamada
March 1994,
AJNR. American journal of neuroradiology,
M Shakudo, and
Y Inoue, and
K Mochizuki, and
T Manabe, and
K Mura, and
R Matsu, and
J Oda, and
R Yamada
February 2006,
Neuroimaging clinics of North America,
M Shakudo, and
Y Inoue, and
K Mochizuki, and
T Manabe, and
K Mura, and
R Matsu, and
J Oda, and
R Yamada
May 2004,
Neuroimaging clinics of North America,
M Shakudo, and
Y Inoue, and
K Mochizuki, and
T Manabe, and
K Mura, and
R Matsu, and
J Oda, and
R Yamada
April 2003,
AJR. American journal of roentgenology,
M Shakudo, and
Y Inoue, and
K Mochizuki, and
T Manabe, and
K Mura, and
R Matsu, and
J Oda, and
R Yamada
January 1990,
Radiologic clinics of North America,
M Shakudo, and
Y Inoue, and
K Mochizuki, and
T Manabe, and
K Mura, and
R Matsu, and
J Oda, and
R Yamada
January 2003,
AJNR. American journal of neuroradiology,
M Shakudo, and
Y Inoue, and
K Mochizuki, and
T Manabe, and
K Mura, and
R Matsu, and
J Oda, and
R Yamada
September 1997,
Radiology,
M Shakudo, and
Y Inoue, and
K Mochizuki, and
T Manabe, and
K Mura, and
R Matsu, and
J Oda, and
R Yamada
October 2003,
American journal of obstetrics and gynecology,
