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Titolo:
ULTRAFAST MR VENOGRAPHY IN THE LUNGS
Autore:
SCHOENBERG SO; KNOPP MV; GRAU A; BISCHOFF H; BOCK M; SCHLEMMER HP; HAWIGHORST H; LAUB G; KOSMAOGLOU P; VANKAICK G;
Indirizzi:
DEUTSCH KREBSFORSCHUNGSZENTRUM,ABT RADIOL DIAGNOST & THERAPIE D-69120HEIDELBERG GERMANY UNIV HEIDELBERG,NEUROL KLIN HEIDELBERG GERMANY THORAXKLIN HEIDELBERG GERMANY SIEMENS MED TECH ERLANGEN GERMANY
Titolo Testata:
Radiologe
fascicolo: 7, volume: 38, anno: 1998,
pagine: 597 - 605
SICI:
0033-832X(1998)38:7<597:UMVITL>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
GER
Soggetto:
ANGIOGRAPHY;
Keywords:
MAGNETIC RESONANCE ANGIOGRAPHY; PULMONARY VEINS; FAST IMAGING; VENOGRAPHY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
S.O. Schoenberg et al., "ULTRAFAST MR VENOGRAPHY IN THE LUNGS", Radiologe, 38(7), 1998, pp. 597-605

Abstract

Aim: Improved detection of pulmonary-venous pathologies by imaging the pulmonary veins without arterial overlay. Material and methods: Sequential 3D imaging of the pulmonary arterial and arteriovenous phase was performed with an ultrafast 3D FLASH sequence successively acquiringeight 3D data sets every 2.9 s within a single breathhold. For an 8 cm thick 3D slab an interpolated spatial resolution of about 1,4x1,9x3,3 mm could be achieved. Different protocols for contrast media dose and infusion rate were used. For selective visualization of the pulmonary veins, the pulmonary arterial phase was subtracted from a subsequentarteriovenous phase with the highest Venous signal. 5 healthy volunteers, 8 patients with history of a cerebrovascular accident (CVA) of unknown etiology and suspected pulmonary-venous thrombosis and 9 patients with compression of the pulmonary vasculature by centrally growing malignancies were evaluated. Results: With higher infusion rate and lower contrast media dose, arteries and veins could be better separated by their enhancement kinetics. In all cases a complete visualization ofthe main pulmonary veins, segmental and subsegmental veins up to the fourth order of each lung segment was achieved without any overlay of pulmonary arteries. No thrombi of the pulmonary veins were found in patients with CVA. The obstruction of pulmonary arteries and veins due to vessel compression could be selectively visualized. Conclusion: Ultrafast multiphase 3D-Gd-MRA is a new reliable method for selective 3 D visualization of pulmonary veins.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 13:02:31