Comparison of Predicted Postoperative Lung Function in Pneumonectomy Using Computed Tomography and Lung Perfusion Scans
Background: Predicting postoperative lung function after pneumonectomy is essential. We retrospectively compared postoperative lung function to predicted postoperative lung function based on computed tomography (CT) volumetry and perfusion scintigraphy in patients who underwent pneumonectomy. Me...
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| Autores principales: | , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Korean Society for Thoracic & Cardiovascular Surgery
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/c98ab4e83d7c444c80322d35bfe4c290 |
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| Sumario: | Background: Predicting postoperative lung function after pneumonectomy is essential.
We retrospectively compared postoperative lung function to predicted postoperative
lung function based on computed tomography (CT) volumetry and perfusion scintigraphy
in patients who underwent pneumonectomy.
Methods: Predicted postoperative lung function was calculated based on perfusion
scintigraphy and CT volumetry. The predicted function was compared to the postoperative
lung function in terms of forced vital capacity (FVC) and forced expiratory volume in 1
second (FEV₁), using 4 parameters: FVC, FVC%, FEV₁, and FEV₁%.
Results: The correlations between postoperative function and predicted function based
on CT volumetry were r=0.632 (p=0.003) for FVC% and r=0.728 (p<0.001) for FEV₁%. The
correlations between postoperative function and predicted postoperative function based
on perfusion scintigraphy were r=0.654 (p=0.002) for FVC% and r=0.758 (p<0.001) for
FEV₁%. The preoperative Eastern Cooperative Oncology Group (ECOG) scores were significantly
higher in the group in which the gap between postoperative FEV₁ and predicted
postoperative FEV₁ analyzed by CT was smaller than the gap analyzed by perfusion scintigraphy
(1.2±0.62 vs. 0.4±0.52, p=0.006).
Conclusion: This study affirms that CT volumetry can replace perfusion scintigraphy for
preoperative evaluation of patients needing pneumonectomy. In particular, it was found
to be a better predictor of postoperative lung function for poor-performance patients (i.e.,
those with high ECOG scores). |
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