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…
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)…
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…
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…
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…
Fig. 10.1 Metric optimized gating. A synthetic trigger with longer R-R interval is used to acquire the k-space data. Hypothetic trigger locations are then retrospectively applied to the data and…
Fig. 9.1 (a) Coronal SSFSE T2w image of a fetal chest at 24 weeks gestation with intermediate signal lung parenchyma. Note the fluid-filled trachea and bronchi (b). Coronal SSFSE T2w…
Fig. 7.1 Macrocephaly. (a, b) Sagittal and coronal T2 single-shot haste (SSH) MR images demonstrate an enlarged head secondary to a large left-sided extra-axial hematoma (white arrows) Fig. 7.2 CLOVES…
Parameter Balanced gradient echo sequence (FIESTA, true FISP, SBSSFP) T2 half-Fourier sequence (HASTE) T1 3D FS gradient echo sequence DWI Axial Coronal/sagittal Axial/axial BFS Coronal/sagittal Axial/sagittal Axial/sagittal Repetition time/echo time…
Fig. 2.1 Displaced bowel loops in pregnant patients. Left: A 19-week pregnant patient with Crohn’s disease. The sigmoid colon (arrow) is displaced by the pregnancy upward and to the left….
