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Titolo:
Arterial switch procedure for D-transposition of the great arteries: Quantitative midterm evaluation of hemodynamic changes with cine MR imaging and phase-shift velocity mapping - Initial experience
Autore:
Gutberlet, M; Boeckel, T; Hosten, N; Vogel, M; Kuhne, T; Oellinger, H; Ehrenstein, T; Venz, S; Hetzer, R; Bein, G; Felix, R;
Indirizzi:
Humboldt Univ, Fak Med, Dept Radiol, D-13353 Berlin, Germany Humboldt Univ Berlin Germany D-13353 ept Radiol, D-13353 Berlin, Germany Humboldt Univ, Fak Med, Dept Pediat Cardiol, D-13353 Berlin, Germany Humboldt Univ Berlin Germany D-13353 at Cardiol, D-13353 Berlin, Germany German Heart Inst, Dept Congenital Heart Dis & Pediat Cardiol, Berlin, Germany German Heart Inst Berlin Germany Dis & Pediat Cardiol, Berlin, Germany German Heart Inst, Dept Cardiac Thorac & Vasc Surg, Berlin, Germany GermanHeart Inst Berlin Germany ac Thorac & Vasc Surg, Berlin, Germany
Titolo Testata:
RADIOLOGY
fascicolo: 2, volume: 214, anno: 2000,
pagine: 467 - 475
SICI:
0033-8419(200002)214:2<467:ASPFDO>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
PULMONARY-ARTERY; ANATOMIC CORRECTION; PROSTHETIC CONDUIT; OUTFLOW TRACT; BLOOD-FLOW; FOLLOW-UP; OPERATION; DOPPLER; STENOSIS; ECHOCARDIOGRAPHY;
Keywords:
aorta, flow dynamics; aorta, MR; aorta, surgery; pulmonary arteries, flow dynamics; pulmonary arteries, MR; transposition of great vessels;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Gutberlet, M Humboldt Univ, Fak Med, Dept Radiol, Campus Virchow Klinikum,Augustenburger Pl 1, D-13353 Berlin, Germany Humboldt Univ Campus Virchow Klinikum,Augustenburger Pl 1 Berlin Germany D-13353
Citazione:
M. Gutberlet et al., "Arterial switch procedure for D-transposition of the great arteries: Quantitative midterm evaluation of hemodynamic changes with cine MR imaging and phase-shift velocity mapping - Initial experience", RADIOLOGY, 214(2), 2000, pp. 467-475

Abstract

PURPOSE: To evaluate cine magnetic resonance (MR) imaging and phase-shift velocity mapping for assessment of the hemodynamic relevance of stenotic segments or specific hemodynamic changes in the great vessels after an arterial switch procedure for correction of D-transposition of the great arteries. MATERIALS AND METHODS: Twenty consecutive patients (age range, 2-17 years)with an acoustic window that was insufficient for Doppler transthoracic echocardiography were included in the study. Flow and diameter measurements of the pulmonary arterial trunk and its primary branches were performed withphase-shift velocity mapping and cine MB, imaging. RESULTS: There were good correlations between pressure gradients in the pulmonary arteries estimated with MR imaging and those measured with Doppler echocardiography (r = 0.83, n = 15) and cardiac catheterization (r = 0.90, n = 13). Cine MR imaging revealed that the diameters of the right and left pulmonary arteries decreased with the expansion of the aorta during systole, which increased the peak velocity. This temporary stenosis was more severe in the right than in the left pulmonary artery and was accompanied by a significantly (P < .05) lower volume flow in the right artery. CONCLUSION: The anatomic situation after arterial switch repair tended to produce temporary stenoses in the primary pulmonary arterial branches, withsignificant changes in hemodynamics. These changes may affect the long-term outcome and go undetected with other imaging modalities.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 12:25:20