Color Doppler flow imaging of renal disease. Value of a new intravenous contrast agent: SH U 508 A (Levovist).
This study was aimed at assessing the diagnostic value of a new intravenous contrast agent SH U 508 A (Levovist) in improving color Doppler detection of renal mass vascularity. The study included 30 patients with renal masses: 22 adenocarcinomas, 1 sarcoma, 1 leiomyosarcoma, 1 urothelioma, 1 hemorrhagic cyst and 4 angiomyolipomas. The vascularization of the renal masses was investigated by means of color Doppler US, before and after the intravenous injection of SH U 508 A (Levovist), on the basis of blood flow patterns within and around the lesions. At precontrast scanning, low color Doppler signal at the periphery or within the lesions was observed in 13/30 patients only. After contrast administration, the signal-to-noise ratio increased, which allowed the visualization of tumor vessels in 26/30 patients. In 4/30 patients only no major enhancement of tumor vessels was observed. Our experience suggests that SH U 508 A (Levovist) improves color Doppler sensitivity in depicting the tumor vessels which were missed at baseline exams and in evaluating renal vein and inferior vena cava involvement.
Filippone
A
A
Istituto di Scienze Radiologiche e Formazione dell'Immagine, Università, Chieti.
Muzi
M
M
Basilico
R
R
Di Giandomenico
V
V
Trapani
A R
AR
Bonomo
L
L
D003116:Color; D003287:Contrast Media; D005069:Evaluation Studies as Topic; D006801:Humans; D007680:Kidney Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging*; D011134:Polysaccharides; D014463:Ultrasonography
D003287:Contrast Media; D011134:Polysaccharides; C059891:SHU 508