PMID- 32363088 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220414 IS - 2156-7514 (Print) IS - 2156-5597 (Electronic) IS - 2156-5597 (Linking) VI - 10 DP - 2020 TI - Quantification of Cardiac Output with Phase Contrast Magnetic Resonance Imaging in Patients with Pulmonary Hypertension. PG - 26 LID - 10.25259/JCIS_36_2020 [doi] LID - 26 AB - OBJECTIVE: The purpose of the study is to compare phase contrast (PC) imaging with invasive measurements of cardiac output (CO) in patients with pulmonary hypertension (PH). MATERIALS AND METHODS: We analyzed 81 cases with PH who underwent cardiac magnetic resonance imaging and right heart catheterization (RHC). Measurement of CO and stroke volume (SV) by cardiac magnetic resonance (CMR) was performed by PC imaging of the proximal aorta (Ao) and pulmonary artery (Pa) and by RHC using the Fick and thermodilution (TD) methods. RESULTS: There was good correlation in CO measurements between PC and RHC; however, there was better correlation with SV measurements; Fick-TD (r=0.85), PC-TD (Ao r=0.77, Pa r=0.79), and PC-Fick (Ao r = 0.73, Pa r = 0.78). Bland-Altman analysis of SV showed that Pa PC had slightly lower standard deviation than Ao PC; PC-Fick (Pa SD = 15.11 vs. Ao SD = 16.4 ml) and PC-TD (Pa SD = 16.99 ml vs. Ao SD = 17.4 ml) while Fick-TD had the lowest (SD = 14.4 ml). Compared to Fick, measurement of SV with Ao PC (‒4.12 ml) and Pa PC (0.22 ml) both had lower mean difference than TD (‒11.1 ml). CONCLUSION: Non-invasive measurement of CO and SV using PC-CMR correlates well with invasive measurement using RHC. Our study showed that PC-CMR had high accuracy and precision when compared to Fick. Among all the modalities, PC-CMR contributed the least amount of variation in measurements. CI - (c) 2020 Published by Scientific Scholar on behalf of Journal of Clinical Imaging Science. FAU - Po, Jose Ricardo AU - Po JR AD - Borgess Heart Institute, Ascension Borgess Hospital, 1722 Shaffer St., Kalamazoo, Michigan, United States. FAU - Tong, Matthew AU - Tong M AD - Department of Cardiovascular Medicine, Wexner Medical Center, 410 W 10th Ave, Columbus, Ohio, United States. FAU - Meeran, Talha AU - Meeran T AD - Department of Cardiology, Fortis Hospital Mulund, Mumbai, Maharashtra, India. FAU - Potluri, Alekhya AU - Potluri A AD - Department of Cardiology, Einstein Medical Center, 5401 Old York Road, Philadelphia, United States. FAU - Raina, Amresh AU - Raina A AD - Cardiovascular Institute, Allegheny General Hospital, 320 E North Ave., Pittsburgh, Pennsylvania, United States. FAU - Doyle, Mark AU - Doyle M AD - Cardiovascular Institute, Allegheny General Hospital, 320 E North Ave., Pittsburgh, Pennsylvania, United States. FAU - Biederman, Robert AU - Biederman R AD - Cardiovascular Institute, Allegheny General Hospital, 320 E North Ave., Pittsburgh, Pennsylvania, United States. LA - eng PT - Journal Article DEP - 20200502 PL - United States TA - J Clin Imaging Sci JT - Journal of clinical imaging science JID - 101564708 PMC - PMC7193209 OTO - NOTNLM OT - Cardiac magnetic resonance imaging OT - Cardiac output OT - Phase contrast imaging OT - Pulmonary hypertension OT - Stroke volume COIS- Robert Biederman, MD Honoraria: Amgen, Bracco, Lantheus, Sanofi/ RegeneronGrants: Biotronik, NIH/NHLB, United Therapeutics. Amresh Raina, MD Consultant: AbbotClinical trials: Actelion, Bayer, Bellerophon, United Therapeutics EDAT- 2020/05/05 06:00 MHDA- 2020/05/05 06:01 PMCR- 2020/05/02 CRDT- 2020/05/05 06:00 PHST- 2020/03/16 00:00 [received] PHST- 2020/04/13 00:00 [accepted] PHST- 2020/05/05 06:00 [entrez] PHST- 2020/05/05 06:00 [pubmed] PHST- 2020/05/05 06:01 [medline] PHST- 2020/05/02 00:00 [pmc-release] AID - JCIS-10-26 [pii] AID - 10.25259/JCIS_36_2020 [doi] PST - epublish SO - J Clin Imaging Sci. 2020 May 2;10:26. doi: 10.25259/JCIS_36_2020. eCollection 2020.