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Elastography for Focal Liver Disease Stephanie R. Wilson 4.1 Introduction Characterizing focal liver masses comprises a significant component of health care costs with substantial impact on patient management both in health…
Comparison of different modes of medical ultrasonography Mode What is measured: What is displayed: B-mode Acoustic impedance Anatomy Doppler Motion Vascular flow Elastography Mechanical properties Tissue stiffness Ultrasound elastography (commonly…
Pineal Tumors 3.7.1 Pineoblastoma Pineoblastomas belong to the group of PNETs, placing them in the same category as medulloblastomas and ependymoblastomas. Pineoblastomas occur mainly in very young patients. They are aggressive…
Thus, imaging results can be accurately interpreted only within the context of a detailed history and clinical examination. Of course, this principle applies to all radiologic findings. Degenerative changes in…
Astrocytic Tumors Many primary tumors of the central nervous system (CNS) arise from glial cells. The glial cells, in turn, are comprised of astrocytes, oligodendrocytes, and ependymal cells. Astrocytes give…
To understand malformations of the brain, the reader should be familiar with the critical processes that occur during embryonic development. This chapter focuses on the developmental processes that are essential…
Masses of the spinal canal are classified by their anatomic location. They may involve the extradural, intradural–extramedullary, or intramedullary space. Localizing a mass to a specific compartment is often helpful…
Vascular Diseases M. Forsting 2.1 Cerebral Ischemia Stroke is caused either by cerebral ischemia (70–80% of all cases) or by an intracerebral or subarachnoid hemorrhage (20–30%). It has an acute to…
