Uso da cintilografia pulmonar com cortes tomograficos na previsão da função pulmonar pos-opratoria em pacientes com cancer de pulmão

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

Perfusion scintigraphy is the commonest method used for the regional assessment of pulmonary function in candidates for pulmonary resection with borderline respiratory function. This method provides two-dimensional images, and it considers all the segments of the pulmonary lobes as having the same volume and function, without considering the spatial overlapping of pulmonary areas with different function. As SPECT provides tomographic imaging, it could be a more precise method for regional assessment. In this prospective study, the postoperative predicted FEV1 (FEV1ppo) was assessed in 26 patients with lung cancer using spirometric procedures, quantitative lung perfusion scan with planar acquisition (PA) and quantitative lung perfusion scan with tomographic imaging (SPECT). The estimated FEV1ppo values of both methods were compared with FEV1 value measured after surgery (mean: 48 ± 44 days, range: 15-180 days, median: 32 days). The Pearson?s linear correlation coefficient was 0.8840 (p-value <0.0001) for FEV1ppo estimated by PA, and 0.8791 (p-value <0,0001) for FEV1ppo estimated by SPECT. The linear correlation coefficient for lobectomy was greater than the coefficient for pneumonectomy in both methods. We concluded that both methods showed good correlation for real postoperative pulmonary function without demonstrating SPECT superiority over PA, and both methods were more effective for estimating FEV1ppo in lobectomies than in pneumonectomies

ASSUNTO(S)

volume expiratorio forçado exploração por radioisotopos tomografia computadorizada de emissão de foton unico pulmões - tumores

ACESSO AO ARTIGO

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