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Quantitative Assessment of Thallium-201 Images

  • U. Buell
  • E. Kleinhans
  • M. Seiderer
  • B. E. Strauer
Conference paper

Abstract

The sensitivity and specificity of thallium-201 myocardial imaging for analysis of regional myocardial viability depends on reproducible image construction and interpretation. Reproducibility is influenced by the myocardial 201Tl uptake, which depends on myocardial perfusion, mass, and metabolism [25, 26]; these factors also determine the myocardial-to-background ratio [7, 14, 15]. Uptake is, in addition, affected by exercise techniques [22], dosage and type of cardiac pharmaceuticals [7, 13, 15, 26], technical equipment, and the methods used for data collection, processing, and display [16]. Accurate interpretation is often difficult, even for experienced investigators. To overcome this problem two techniques are employed: (1) grading analogue images by quality (poor, adequate, or excellent) and by uptake (normal, borderline, or abnormal) [27], and (2) grading of digital images with Computer assistance [3–11, 13–18, 20–22].

Keywords

Left Ventricle Count Rate Lateral Projection Anterior Oblique Projection Left Ventricular Area 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1979

Authors and Affiliations

  • U. Buell
    • 1
  • E. Kleinhans
    • 1
  • M. Seiderer
    • 1
  • B. E. Strauer
    • 1
  1. 1.Radiologische Klinik und Poliklinik der Universität München, Medizinische Klinik I der Universität MünchenKlinikum GrosshadernMünchenGermany

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