胸膜下病変の質的診断に対する超音波パワードプラ法の臨床応用

Abstract

The purpose of this investigation was to assess the usefulness of power Doppler sonography (PDS) for the qualitative diagnosis of subpleural lesions in comparison with color Doppler sonography (CDS). Sixty-seven lesions (36 pneumonias, 8 pulmonary abscesses, 17 primary lung cancers, 6 metastatic lung cancers) were examined. Color flow patterns of subpleural lesions depicted by color flow imaging were classified into seven groups. PDS was better than CDS in the ability of showing color flow. Color flow patterns of pneumonias obtained in PDS differed significantly from patterns of lung cancers. Color flow patterns of the benign groups obtained in PDS differed significantly from patterns of the malignant group. These findings illustrated the usefulness of PDS as a means of diagnosing benign and malignant subpleural lesions.