[3-phase spiral CT--a new noninvasive procedure for the differentiation of multifocal liver lesions]. / Drei-Phasen-Spiral-CT--ein neues nichtinvasives Verfahren zur Differenzierung multifokaler Leberläsionen.
Aktuelle Radiol
; 5(1): 15-8, 1995 Jan.
Article
en De
| MEDLINE
| ID: mdl-7888424
ABSTRACT
Dynamic CT is an established method for the differentiation of focal liver lesions by monitoring the contrast enhancement. It is especially restricted in the assessment of small and multiple lesions due to respiratory organ movements. Spiral-CT allows the examination of large volumes in the breathhold technique. Spiral-CT with controlled i.v. contrast media administration can be used for the assessment of the entire liver in distinct phases of perfusion. We describe the use of this new technique in a patient with multifocal nodular hyperplasia (FNH), for whom assessment with dynamic CT was not suitable. The lesions were first located with a conventional contrast-enhanced CT-scan. The impossibility to assess all the lesions with dynamic CT led to the decision to perform a three-phase spiral-CT with three sequential scans (native, arterial, and portal perfusion phase). The entire liver was scanned after power injector-controlled i.v. administration of contrast media with the following parameters 1) arterial phase 70 ml contrast media, 2 ml/s, start delay 18 s; 2) portal phase 80 ml contrast media, 2 ml/s, start delay 60 s; slice 8 mm, table feed 8 mm, increment 4 mm; 24 s of breathhold data acquisition.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Intensificación de Imagen Radiográfica
/
Tomografía Computarizada por Rayos X
/
Medios de Contraste
/
Hígado
/
Hepatopatías
Tipo de estudio:
Prognostic_studies
Límite:
Adult
/
Female
/
Humans
Idioma:
De
Revista:
Aktuelle Radiol
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
Año:
1995
Tipo del documento:
Article