Dose Considerations in CT Perfusion Lifeng Yu Shuai Leng Lance J. Phillips Dawn Banghart Cynthia H. McCollough Introduction Computed tomography (CT) perfusion has received increased attention in various oncology and…
CT Image Reconstruction Basics Joachim Hornegger Andreas Maier Markus Kowarschik Computed tomography perfusion (CTP) imaging requires the reconstruction of a series of time-dependent volumetric datasets. The sequence of CT volumes…
Primer on CT Physics and Hardware Jiang Hsieh Marc Kachelriess Overview of CT History Since the introduction of the first clinical computed tomography (CT) scanner by EMI, x-ray CT has…
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…
