title: [Usefulness of three-dimensional color Doppler sonography for the differential diagnosis of subpleural lesions].
abstract: The purpose of our investigation was to assess the usefulness of three-dimensional color Doppler sonography (velocity mode and power mode) for the differential diagnosis of subpleural lesions. Thirty lesions (11 pneumonias, 5 lung abscesses, 11 primary lung cancers, 3 metastatic lung cancers) were examined. Three-dimensional images were reconstructed by a maximum intensity projection method. Three-dimensional representations of intralesional blood flow became available for all lesions approximately 11 seconds after scanning. In every case, the entire vasculature of the tumor, the pneumonia, the abscess, or the inflamed region of the lung was appreciated more easily from three-dimensional images than from two-dimensional images. We classified the color flow pattern of subpleural lesions depicted by color flow imaging into seven groups. Color flow was depicted better by the three-dimensional color Doppler power mode than the velocity mode. Three-dimensional color flow patterns observed in power mode, patterns of the pneumonias and the lung cancers differed significantly. Our results suggest that the three-dimensional color Doppler power mode is useful for the differential diagnosis of subpleural lesions.
authors.affiliation: Department of Internal Medicine, Saiseikai Nara Hospital, 4-643 Hachijo, Nara-shi 630-8145, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Hamazaki
authors.forename: Y
authors.initials: Y
authors.lastname: Kounoike
authors.forename: K
authors.initials: K
authors.lastname: Makinodan
authors.forename: M
authors.initials: M
authors.lastname: Nakatani
authors.forename: K
authors.initials: K
authors.lastname: Usuba
authors.forename: K
authors.initials: K
authors.lastname: Ueda
authors.forename: T
authors.initials: T
authors.lastname: Okada
authors.forename: S
authors.initials: S
authors.lastname: Egawa
authors.forename: S
authors.initials: S
authors.lastname: Takeshita
authors.forename: H
authors.initials: H
authors.lastname: Ohishi
authors.forename: N
authors.initials: N
authors.lastname: Narita
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D006801:Humans; D008169:Lung Abscess / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011014:Pneumonia / Q000000981:diagnostic imaging*; D018615:Ultrasonography, Doppler, Color / Q000379:methods*