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  • Mantini, CesareUniversity G.d'Annunzio of Chieti-Pescara (author)

Aliased Flow Signal Planimetry by Cardiovascular Magnetic Resonance Imaging for Grading Aortic Stenosis Severity : A Prospective Pilot Study

  • Article/chapterEnglish2021

Publisher, publication year, extent ...

  • 2021-10-18
  • Frontiers Media SA,2021

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:5ef032f6-58b0-47ae-937b-ccef2989c6b4
  • https://lup.lub.lu.se/record/5ef032f6-58b0-47ae-937b-ccef2989c6b4URI
  • https://doi.org/10.3389/fcvm.2021.752340DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

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  • Objectives: Transthoracic echocardiography (TTE) is the standard technique for assessing aortic stenosis (AS), with effective orifice area (EOA) recommended for grading severity. EOA is operator-dependent, influenced by a number of pitfalls and requires multiple measurements introducing independent and random sources of error. We tested the diagnostic accuracy and precision of aliased orifice area planimetry (AOAcmr ), a new, simple, non-invasive technique for grading of AS severity by low-VENC phase-contrast cardiovascular magnetic resonance (CMR) imaging. Methods: Twenty-two consecutive patients with mild, moderate, or severe AS and six age-and sex-matched healthy controls had TTE and CMR examinations on the same day. We performed analysis of agreement and correlation among (i) AOAcmr; (ii) geometric orifice area (GOAcmr ) by direct CMR planimetry; (iii) EOAecho by TTE-continuity equation; and (iv) the “gold standard” multimodality EOA (EOAhybrid ) obtained by substituting CMR LVOT area into Doppler continuity equation. Results: There was excellent pairwise positive linear correlation among AOAcmr, EOAhybrid, GOAcmr, and EOAecho (p < 0.001); AOAcmr had the highest correlation with EOAhybrid (R2 = 0.985, p < 0.001). There was good agreement between methods, with the lowest bias (0.019) for the comparison between AOAcmr and EOAhybrid . AOAcmr yielded excellent intra-and inter-rater reliability (intraclass correlation coefficient: 0.997 and 0.998, respectively). Conclusions: Aliased orifice area planimetry by 2D phase contrast imaging is a simple, reproducible, accurate “one-stop shop” CMR method for grading AS, potentially useful when echocardiographic severity assessment is inconclusive or discordant. Larger studies are warranted to confirm and validate these promising preliminary results.

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  • Khanji, Mohammed Y.Queen Mary University,Newham University Hospital,Barts Health NHS Trust (author)
  • D’ugo, EmiliaAzienda Sanitaria Locale 2 Abruzzo Chieti (author)
  • Olivieri, MarziaUniversity G.d'Annunzio of Chieti-Pescara (author)
  • Caputi, Cristiano GiovanniAzienda Sanitaria Locale 2 Abruzzo Chieti (author)
  • Bufano, GabriellaUniversity G.d'Annunzio of Chieti-Pescara (author)
  • Mastrodicasa, DomenicoStanford University School of Medicine (author)
  • Garcia, Darien CalvoUniversity G.d'Annunzio of Chieti-Pescara (author)
  • Rotondo, DomenicoAzienda Sanitaria Locale 2 Abruzzo Chieti (author)
  • Candeloro, MatteoUniversity G.d'Annunzio of Chieti-Pescara (author)
  • Tana, ClaudioAzienda Sanitaria Locale 2 Abruzzo Chieti (author)
  • Cademartiri, FilippoSDN IRCCS (author)
  • Ionescu, AdrianSwansea Bay University Health Board (author)
  • Caulo, MassimoUniversity G.d'Annunzio of Chieti-Pescara (author)
  • Gallina, SabinaUniversity G.d'Annunzio of Chieti-Pescara (author)
  • Ricci, FabrizioLund University,Lunds universitet,Kardiovaskulär forskning - hypertoni,Forskargrupper vid Lunds universitet,Cardiovascular Research - Hypertension,Lund University Research Groups,University G.d'Annunzio of Chieti-Pescara(Swepub:lu)fa7062ri (author)
  • University G.d'Annunzio of Chieti-PescaraQueen Mary University (creator_code:org_t)

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  • In:Frontiers in Cardiovascular Medicine: Frontiers Media SA82297-055X

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