Aortopulmonary collateral flow quantification by MR at rest and during continuous submaximal exercise in patients with total cavopulmonary connection
| Autor: | Naira, Mkrtchyan, Yvonne, Frank, Eva, Steinlechner, Lenika, Calavrezos, Christian, Meierhofer, Alfred, Hager, Stefan, Martinoff, Peter, Ewert, Heiko, Stern |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Heart Defects Congenital Male Pulmonary Circulation Vena Cava Superior Adolescent Heart Ventricles Micrognathism Pulmonary Artery Fontan Procedure Magnetic Resonance Imaging Tricuspid Atresia Cleft Palate Young Adult Pulmonary Atresia Case-Control Studies Hypoplastic Left Heart Syndrome Microcephaly Humans Female Prospective Studies Ear External Child Exercise Aorta |
| Zdroj: | Journal of magnetic resonance imaging : JMRI. 47(6) |
| ISSN: | 1522-2586 |
| Popis: | Aortopulmonary collateral flow is considered to have significant impact on the outcome of patients with single ventricle circulation and total cavopulmonary connection (TCPC). There is little information on collateral flow during exercise.To quantify aortopulmonary collateral flow at rest and during continuous submaximal exercise in clinical patients doing well with TCPC.Prospective, case controlled.Thirteen patients with TCPC (17 (11-37) years) and 13 age and sex-matched healthy controls (18 (11-38) years).1.5T; free breathing; phase sensitive gradient echo sequence.Blood flow in the ascending and descending aorta and superior vena cava were measured at rest and during continuous submaximal physical exercise in patients and controls. Systemic blood flow (QMann-Whitney U-test and Wilcoxon test for comparison between groups and between rest and exercise.Absolute collateral flow in TCPC patients at rest was 0.4 l/min/mClinical patients doing well with TCPC have significant aortopulmonary collateral flow at rest (14% of Q2 Technical Efficacy: Stage 3 J. Magn. Reson. Imaging 2018;47:1509-1516. |
| Databáze: | OpenAIRE |
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