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Fig. 4 | European Journal of Hybrid Imaging

Fig. 4

From: Evaluation of lung perfusion by using lung perfusion SPECT and lung CT with breathing synchronization software

Fig. 4

The fusion images between SPECT and CT before and after using the breathing synchronization software. A 50-year-old woman underwent lung perfusion SPECT and CT due to suspected PE; she had no abnormal morphological findings on the CT image and the lung perfusion SPECT image revealed normal lung perfusion. The lung volume calculated using CT was 4332 ml. A Before using the breathing synchronization software, the lung volume calculated using the original lung perfusion SPECT was 3351 ml; B after using the breathing synchronization software, the lung volume calculated using lung perfusion SPECT with the breathing synchronization software was 3974 ml; the volume of lungs calculated from SPECT with the breathing synchronization software was increased, and the conformity between lung perfusion SPECT and lung CT was improved. Abbreviations: CT = computed tomography; PE = pulmonary embolism; and SPECT = single-photon emission computed tomography

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