MR of Maternal Chest Diseases in Pregnancy
Fig. 16.1 Ground-glass opacity. Axial fat-suppressed fast spin-echo T2-WI (a) and axial free-breathing post-contrast fat-suppressed 3D GRE T1-WI (radial VIBE) (b). In the left lower lobe, a hazy opacity is…
Fetal Central Nervous System
1. Congenital anomalies of the brain suspected or not adequately assessed by sonography including but are not limited to: (a) Ventriculomegaly (b) Agenesis of the corpus callosum (c) Holoprosencephaly (d)…
Fetal MR Imaging: Protocols and Anatomy
Fig. 3.1 Coronal (a) and sagittal (b) SSFSE of the gravid uterus characterized by oligohydramnios. Images demonstrate reasonable resolution of the fetal brain despite the lack of amniotic fluid, which…
MR of Fetal Abdomen and Pelvis
Fig. 11.1 Normal fetal abdominal and pelvic anatomy. Fetus at 32 weeks’ gestation. (a) Coronal and (b) sagittal T2-weighted and corresponding (c) coronal and (d) sagittal T1-weighted images. Stomach (long…
Management and Surgery of Abnormal Invasive Placenta: Impact of MR Imaging
MRI equipment Picker 1.5 edgepicker 1.5 edge Siemens Espree 1.5 T GE 3 T signa HDxt Philips Achieva 1.5 T Sequences FSE Haste ss-FSE3 ssh-TSE4 TR 3500 850 2399 712…
MRI of Appendicitis and Bowel Diseases in Pregnancy
T2-weighted imaging T1-weighted imaging Parameter Half-Fourier single-shot FSE Half-Fourier single-shot FSE with fat suppression Diffusion-weighted imaging b800 2D dual-echo GRE 2D time of flight Planes Axial, coronal, sagittal Axial…
MR of Obstetric Diseases in Pregnancy
Fig. 19.1 Placental abruption. Axial T1-weighted (a) and T2-weighted (b) MR images show linear low T2-weighted signal intensity signal in the retroplacental region, with corresponding mild increased T1 signal (arrows)…
MRI of Fetal Spine and Extremities
Spinal dysraphism Myelomeningocele/myeloschisis Lipomyelomeningocele Meningocele Split cord malformation or diastematomyelia Terminal myelocystocele Caudal regression syndrome Segmental spinal dysgenesis Congenital spinal neoplasms such as teratoma, dermoid/epidermoid, hamartomas Complex syndromes/constellation of anomalies…
MRI of the Placenta
Fig. 13.1 Uterine contraction in a 27-year-old at 6 weeks gestation referred for abdominopelvic MRI. Coronal (a) and axial (b) T2-weighted images demonstrate the early intrauterine pregnancy. No embryonic parts…
Magnetic Resonance of Renal Disease in Pregnancy
Fig. 22.1 An intravenous urogram from the archives showing the dilated right ureter tapering as it passes between the pelvic brim and the gravid uterus The hormonal theory is that…
