Neuroimaging nghiên cứu có thể là một phần vô giá của workup chẩn đoán của bệnh nhân tâm thần. Tuy nhiên, nó có thể được khó để xác định các tình huống lâm sàng gọi cho việc sử dụng các nghiên cứu Neuroimaging và không. | Introduction euroimaging technology has progressed considerably during recent decades. Neuroimaging studies can be an invaluable part of the diagnostic workup of psychiatric patients. However it can be difficult to determine which clinical situations call for the use of neuroimaging studies and which do not. In addition it is often unclear what type of neuroimaging study should be ordered. Should contrast be used during the study Are there specific acquisition parameters that may be useful in a particular clinical situation The goal of this volume is to describe the currently available neuroimaging technologies and to discuss their appropriate use in the clinical psychiatric setting. The potential future clinical utility of these techniques will be addressed as well. Structural neuroimaging modalities such as computed tomography CT and magnetic resonance imaging MRI have revolutionized the practice of medicine in recent decades. In the first chapter Park and Gonzalez describe the history of CT how CT works and which clinical situations call for the use of CT. The chapter also provides a number of CT images as examples of radiological findings associated with specific diagnoses. Goldstein and Price present similar detail in their chapter on MRI. This chapter summarizes the state of the art in MRI technology and offers specific guidelines for ordering MRI studies. Functional neuroimaging techniques developed after the advent of structural neuroimaging and show great promise for both clinical use and neuroscience research. Positron emission tomography PET and single photon emission computed tomography SPECT have demonstrated the greatest clinical utility of all functional neuroimaging methods to date. The chapter by Dougherty Rauch and Fischman reviews the physics underlying PET and SPECT and highlights the usefulness of these technologies in clinical situations. Functional magnetic resonance imaging fMRI has limited clinical utility in psychiatry at present but it is
