Abstract

Voltage and magnification are the variables of exposure used to investigate the effects upon the detection of lesions on lung tissue of a phantom. Analysis by percent correctness and ANOVA indicate that the voltage and magnification for the levels investigated had no significant effect upon detection accuracy. ROC analysis of the data also show no significant increase in detectability attributed to the variables investigated, The ROC evaluation does indicate a slight increase in detectability of the simulated lesions, while the percent correctness analysis does not. This difference may be due to the bias of the observers and removed by the ROC analysis.

Library of Congress Subject Headings

Radiography

Publication Date

1974

Document Type

Thesis

Student Type

Graduate

Department, Program, or Center

School of Photographic Arts and Sciences (CIAS)

Advisor

Todd, Hollis

Comments

Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014. A physical copy is available from RIT's Wallace Library at TR750.M49

Campus

RIT – Main Campus

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