CRITICAL AND EMERGING ISSUES IN DIAGNOSTIC IMAGING: DIMENSIONALITY OF THE FEATURE SPACE.

Robert F. Wagner, Laurence W. Grossman, Michael Insana, Robert J. Jennings

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

X-ray, nuclear magnetic resonance, and ultrasonic imaging in medicine are capable of contributing, respectively, two, three or four, and four or five physical measurements of features for tissue characterization. These physical quantities are reviewed with regard to the stochastic and deterministic errors in their measuremnts. The nature of the problem of dimensionality reduction is illustrated in the combined feature space by drawing on some examples from diagnostic ultrasound. A summary of the methods for assessing the limits to sensitivity of imaging systems and their quantification is also given. This includes finding the relative (and absolute) contributions to the image fluctuations, or noise, due to natural fluctuations in the signals themselves, systematic effects or variable calibration of the detection system, and the natural spread in signal strengths due to the variability in the patient population.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
EditorsCharles J. Robinson, George V. Kondraske
PublisherIEEE
Pages33-36
Number of pages4
StatePublished - 1986
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'CRITICAL AND EMERGING ISSUES IN DIAGNOSTIC IMAGING: DIMENSIONALITY OF THE FEATURE SPACE.'. Together they form a unique fingerprint.

Cite this