Imaging Techniques for the Assessment of Body-Composition

Research output: Contribution to journalLiterature review

32 Citations (Scopus)

Abstract

Three imaging methods, ultrasound imaging (UI), computer-assisted axial tomography (CAT) and magnetic resonance imaging (MRI), are widely used in medicine. Their application to the assessment of body composition in nutrition research is still being explored and developed. Ultrasound imaging yields poor image quality but, because it is cheap and safe, deserves further exploration. Both CAT and MRI can produce images with good discrimination among bone, muscle and adipose tissue. Movement artifacts tend to be more serious in MRI than in CAT due to the longer imaging time. On the other hand, the X-ray exposure in CAT is likely to limit its use in human nutrition research. Repeated measurements of tissue volumes by CAT and MRI give similar CV. In both CAT and MRI, intra-abdominal adipose tissue presents greater problems of measurement than subcutaneous adipose tissue. Validation studies with 77-kg pigs of MRI, using 13 slices, predicted total body lipid with residual standard deviation of 1.9%. In validating any of these methods, account should be take of the extent to which the information they give can augment that given by more simple measures like age and weight.

Original languageEnglish
Pages (from-to)S1546-S1550
Number of pages5
JournalThe Journal of Nutrition
Volume124
Issue number8
Publication statusPublished - Aug 1994

Keywords

  • ultrasound imaging
  • computer-assisted axial tomography
  • magnetic resonance imaging
  • tissue discrimination
  • adipose-tissue distribution
  • computed-tomography
  • magnetic-resonance
  • women
  • accuracy
  • invivo
  • fat
  • men

Cite this

Imaging Techniques for the Assessment of Body-Composition. / FULLER, M F ; Fowler, Paul Alfred Francois; McNeill, Geraldine; Foster, A.

In: The Journal of Nutrition, Vol. 124, No. 8, 08.1994, p. S1546-S1550.

Research output: Contribution to journalLiterature review

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abstract = "Three imaging methods, ultrasound imaging (UI), computer-assisted axial tomography (CAT) and magnetic resonance imaging (MRI), are widely used in medicine. Their application to the assessment of body composition in nutrition research is still being explored and developed. Ultrasound imaging yields poor image quality but, because it is cheap and safe, deserves further exploration. Both CAT and MRI can produce images with good discrimination among bone, muscle and adipose tissue. Movement artifacts tend to be more serious in MRI than in CAT due to the longer imaging time. On the other hand, the X-ray exposure in CAT is likely to limit its use in human nutrition research. Repeated measurements of tissue volumes by CAT and MRI give similar CV. In both CAT and MRI, intra-abdominal adipose tissue presents greater problems of measurement than subcutaneous adipose tissue. Validation studies with 77-kg pigs of MRI, using 13 slices, predicted total body lipid with residual standard deviation of 1.9{\%}. In validating any of these methods, account should be take of the extent to which the information they give can augment that given by more simple measures like age and weight.",
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AB - Three imaging methods, ultrasound imaging (UI), computer-assisted axial tomography (CAT) and magnetic resonance imaging (MRI), are widely used in medicine. Their application to the assessment of body composition in nutrition research is still being explored and developed. Ultrasound imaging yields poor image quality but, because it is cheap and safe, deserves further exploration. Both CAT and MRI can produce images with good discrimination among bone, muscle and adipose tissue. Movement artifacts tend to be more serious in MRI than in CAT due to the longer imaging time. On the other hand, the X-ray exposure in CAT is likely to limit its use in human nutrition research. Repeated measurements of tissue volumes by CAT and MRI give similar CV. In both CAT and MRI, intra-abdominal adipose tissue presents greater problems of measurement than subcutaneous adipose tissue. Validation studies with 77-kg pigs of MRI, using 13 slices, predicted total body lipid with residual standard deviation of 1.9%. In validating any of these methods, account should be take of the extent to which the information they give can augment that given by more simple measures like age and weight.

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KW - computer-assisted axial tomography

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KW - adipose-tissue distribution

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KW - magnetic-resonance

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KW - accuracy

KW - invivo

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KW - men

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