PMC4899876_01
84-year-old female with COPD and lucent lungs. "Rotating" planar images demonstrate "lucent" and hyperinflated bilateral lung fields in both the stress and the rest acquisitions. The calculated lung-to-heart ratio was 0.32 at stress and 0.31 at rest.
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Review of the "rotating" planar images demonstrated "lucent" and hyperexpanded lung fields in both the stress and the rest acquisitions (Fig. 1).
84-year-old female with COPD and lucent lungs. Topogram from prior noncontrast chest CT demonstrates hyperinflation of the lungs.
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Correlation with prior noncontrast chest CT demonstrated hyperinflated lungs on the topogram (Fig. 2).
84-year-old female with COPD and lucent lungs. Axial (A) and coronal (B) images from prior noncontrast chest CT demonstrate significant emphysema and large geographic areas of air trapping.
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The axial and coronal CT images demonstrated significant emphysema and large geographic areas of air trapping (Fig. 3).
84-year-old female with COPD and lucent lungs. Reconstructed stress and rest tomographic images demonstrate homogeneous and physiologic tracer distribution throughout the entire left ventricular myocardium and no evidence of regadenoson-induced myocardial ischemia.
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Reconstructed stress and rest tomographic images demonstrated homogeneous and physiologic tracer distribution throughout the entire left ventricular myocardium, and no evidence of regadenoson-induced myocardial ischemia (Fig. 4).
84-year-old female with COPD and lucent lungs. Gated tomographic images with the patient at rest demonstrate normal left ventricular wall motion and wall thickening. Left ventricular ejection fraction is greater than 75%. End-systolic and end-diastolic volumes are normal. Right ventricular volume and function appear normal.
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The left-ventricular ejection fraction was greater than 75%, and end-systolic and end-diastolic volumes were normal (Fig. 5).