Acta radiologica
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Comparative Study
Pulmonary perfusion in acute pulmonary embolism: agreement of MRI and SPECT for lobar, segmental and subsegmental perfusion defects.
To assess prospectively the agreement of magnetic resonance (MR) pulmonary perfusion with single-photon emission computed tomography (SPECT) perfusion for perfusion defects down to the subsegmental level in patients with suspected pulmonary embolism (PE). ⋯ The very high agreement of MR perfusion with SPECT perfusion enables the detection of subtle findings in suspected PE.
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Comparative Study
Quantitative assessment of regional emphysema distribution in patients with chronic obstructive pulmonary disease (COPD).
To compare objective and subjective assessment of the distribution of emphysema in unselected patients with chronic obstructive pulmonary disease (COPD). ⋯ We found significant discrepancies between the objective and subjective distributions of emphysema in various morphological patterns, which may be of clinical importance in, for instance, lung-volume-reduction surgery.
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To determine the intra- and interobserver reliability in grading disc and muscle parameters using low-field magnetic resonance imaging (MRI). ⋯ Convincing reliability was found in the evaluation of disc- and muscle-related MRI variables.