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What Is an Image?

What Is an Image? APPLIED BRAIN I MAGING Andrew J. Gerber, M.D., Ph.D., Bradley S. Peterson, M.D. Assistant Editors ANDREW J. GERBER, M.D., PH.D., AND BRADLEY S. PETERSON, M.D. Whether in the hands of an advertising executive or a value and its corresponding grayscale representation or scientist, visual images have the power either to convey color-encoding may represent, for example, the degree information efficiently or to mislead through sleight of to which x-rays pass through the tissue (in a computed hand. To evaluate adequately what is being presented in tomography [CT] scan; Fig. 2), the amount of radio- a published imaging article, readers must first under- activity emitted by the tissue (in positron emission stand what constitutes an image. A wide range of tomography), the number of hydrogen nuclei in the technologies can produce an image of the brain, and tissue (in anatomical magnetic resonance imaging those images can capture an even wider range of features [MRI]; Fig. 2), the direction of fiber tracts in the brain of the brain tissue that is imaged (Table 1). Never- (in diffusion tensor imaging [DTI] Fig. 3), the amount theless, all of those images have in common a basic of oxygenated or deoxygenated hemoglobin (in func- http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the American Academy of Child & Adolescent Psychiatry Wolters Kluwer Health

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References (1)

ISSN
0890-8567
DOI
10.1097/CHI.0b013e318161e509
pmid
18512292
Publisher site
See Article on Publisher Site

Abstract

APPLIED BRAIN I MAGING Andrew J. Gerber, M.D., Ph.D., Bradley S. Peterson, M.D. Assistant Editors ANDREW J. GERBER, M.D., PH.D., AND BRADLEY S. PETERSON, M.D. Whether in the hands of an advertising executive or a value and its corresponding grayscale representation or scientist, visual images have the power either to convey color-encoding may represent, for example, the degree information efficiently or to mislead through sleight of to which x-rays pass through the tissue (in a computed hand. To evaluate adequately what is being presented in tomography [CT] scan; Fig. 2), the amount of radio- a published imaging article, readers must first under- activity emitted by the tissue (in positron emission stand what constitutes an image. A wide range of tomography), the number of hydrogen nuclei in the technologies can produce an image of the brain, and tissue (in anatomical magnetic resonance imaging those images can capture an even wider range of features [MRI]; Fig. 2), the direction of fiber tracts in the brain of the brain tissue that is imaged (Table 1). Never- (in diffusion tensor imaging [DTI] Fig. 3), the amount theless, all of those images have in common a basic of oxygenated or deoxygenated hemoglobin (in func-

Journal

Journal of the American Academy of Child & Adolescent PsychiatryWolters Kluwer Health

Published: Mar 1, 2008

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