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Titolo:
Artifact reduction in bolus-enhanced spiral CT of pulmonary arteries usinga saline push.
Autore:
Vogel, N; Kauczor, HU; Heussel, CP; Ries, BG; Thelen, M;
Indirizzi:
Univ Mainz, Klin & Poliklin Radiol, D-55131 Mainz, Germany Univ Mainz Mainz Germany D-55131 Poliklin Radiol, D-55131 Mainz, Germany
Titolo Testata:
ROFO-FORTSCHRITTE AUF DEM GEBIET DER RONTGENSTRAHLEN UND DER BILDGEBENDEN VERFAHREN
fascicolo: 5, volume: 173, anno: 2001,
pagine: 460 - 465
SICI:
1438-9029(200105)173:5<460:ARIBSC>2.0.ZU;2-V
Fonte:
ISI
Lingua:
GER
Soggetto:
EMBOLISM; OPTIMIZATION; TIME;
Keywords:
pulmonary embolism; saline push; bolus-enhanced spiral CT; streak artifacts;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Vogel, N Univ Mainz, Klin & Poliklin Radiol, Langenbeckstr 1, D-55131 Mainz, Germany Univ Mainz Langenbeckstr 1 Mainz Germany D-55131 Mainz, Germany
Citazione:
N. Vogel et al., "Artifact reduction in bolus-enhanced spiral CT of pulmonary arteries usinga saline push.", ROFO-F RONT, 173(5), 2001, pp. 460-465

Abstract

Purpose: To improve the diagnostic efficacy of bolus-enhanced spiral CT (SCT) in the detection of pulmonary embolism using a saline push immediately after bolus injection of the contrast medium. Patients and Methods: The study included 90 patients with suspected acute or chronic pulmonary embolism. The CT scan was performed in a caudocephaled direction. In Group 1 (n=60) we applied a bolus contrast injection (120 ml, 3 ml/s, 300 mg J/ml), after a median delay of 25 s. Group H (n=30) had the same contrast injection which was immediately followed by an additional saline push (60 ml, 2 ml/s). Streak artifacts originating from high contrast concentrations in the superior vena cava were rated on a 1-point scale for different locations: right pulmonary artery, pars basalis, truncus anterior, and the segmental upper robe arteries. Results: The incidence of artifacts in group I was nearly twiceas high as in group II. The difference was significant (p <0.05) for the upper and anterior superior robe artery, the Fight pulmonary artery and the pars basalis. Conclusion: The presented protocol significantly reduces artifacts mainly by a washout of contrast medium in the superior vena cava.

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Documento generato il 26/01/20 alle ore 01:07:29