Evaluation of Fetal Anatomy in the First Trimester
Outline Fetal Development in the First Trimester, 98 Embryonic Period (Weeks 4-9 Post Conception), 99 Fetal Period (Weeks 9-14), 101 Normal Ultrasound Findings in the First Trimester, 101 Head and…
Genetics and Prenatal Genetic Testing
Outline Genetics and Birth Defects, 25 Developmental Disorders: Causes, Mechanisms, and Patterns, 25 Chromosomal Defects, 27 Abnormalities of Chromosome Number, 27 Trisomy 21, 27 Trisomy 18, 28 Trisomy 13, 28…
Fetal Biometry and Growth
Outline Assignment of Gestational Age, 119 First Trimester Dating, 119 Second and Third Trimester Dating, 119 Measurements, 119 Assigning Gestational Age in the Second and Third Trimesters, 121 Fetal Weight…
Obstetric Ultrasound Examination
Outline Safety of Ultrasound Examination, 3 Indications for Obstetric Ultrasound Examination, 4 Who Should Perform the Ultrasound Examination and How Should It Be Performed?, 5 Nonmedical Use of Ultrasonography, 5…
Sectional Anatomy of the Postnatal Brain
This section discusses the normal magnetic resonance (MR) imaging appearance of the brains of children after term delivery up to the age of 18 months. We illustrate this topic with…
Sectional Anatomy of the Fetal Brain
The major part of this section is a pictorial review of cross-sectional fetal brain anatomy using magnetic resonance (MR) imaging matched as closely as possible with postmortem histologic sections. It…
Surface Anatomy of the Brain
The adult human brain has a highly complex external morphology, and this is particularly true of the cerebral hemispheres. The clinical neuroimager needs to know the normal patterns of cortical…
Wall Motion Stress Magnetic Resonance
• CMR can detect myocardial ischemia using exercise and pharmacologic stressors with accuracy comparable to nuclear and echocardiography. • Accuracy of CMR wall motion stress testing for ischemia may be…
Carotid Atherosclerotic Disease
• Multiple contrast weighted imaging sequences (including bright- and black-blood techniques) are needed for accurate assessment of the luminal surface condition and plaque composition. • MRI is able to visualize…
Plaque and Wall Assessment
• Vascular magnetic resonance imaging is noninvasive, does not involve ionizing radiation, and can provide extensive coverage of large arteries with high accuracy and reproducibility. • As such, it can…
