PURPOSE: This study was conducted to assess the role of atrial function by cardiac magnetic resonance (CMR) for the evaluation of diastolic physiology in patients with hypertrophic cardiomyopathy (HCM) compared to healthy controls. MATERIALS AND METHODS: We enrolled 23 consecutive patients affected by HCM and 43 healthy subjects as age-matched control cases (CC). CMR was performed through acquisition of cine steady-state free precession sequences using a 1.5-T scanner. Image postprocessing was carried out using Tracking Tool software. RESULTS: Atrial volumes were significantly higher in patients with HCM compared to CC: maximum atrial volume (p = 0.007) and minimum atrial volume (p = 0.01). A statistically significant difference was also observed in atrial ejection fraction in patients with HCM (p < 0.0001). The atrial volume curves defined as cavity volume over time (dV/t) showed significant differences: early atrial peak emptying rate (PERE) (maximum rate of emptying independent of atrial contraction) in HCM was -146 ± 53 ml/s versus -227 ± 86 ml/s in CC (p < 0.0001); active atrial peak emptying rate (PERA) (maximum rate of emptying secondary to atrial contraction) in HCM was -256 ± 80 ml/s versus -216 ± 104 ml/s in CC (p = 0.05); the atrial PER E/A ratio in HCM was 0.6 ± 0.2 versus 1.05 ± 0.5 in CC (p < 0.0001). CONCLUSIONS: This study demonstrated that in HCM patients with early diastolic dysfunction the parameters of left atrial function assessed by CMR are impaired before the ventricular diastolic indexes such as the early peak filling rate and the active peak filling rate.
PURPOSE: This study was conducted to assess the role of atrial function by cardiac magnetic resonance (CMR) for the evaluation of diastolic physiology in patients with hypertrophic cardiomyopathy (HCM) compared to healthy controls. MATERIALS AND METHODS: We enrolled 23 consecutive patients affected by HCM and 43 healthy subjects as age-matched control cases (CC). CMR was performed through acquisition of cine steady-state free precession sequences using a 1.5-T scanner. Image postprocessing was carried out using Tracking Tool software. RESULTS: Atrial volumes were significantly higher in patients with HCM compared to CC: maximum atrial volume (p = 0.007) and minimum atrial volume (p = 0.01). A statistically significant difference was also observed in atrial ejection fraction in patients with HCM (p < 0.0001). The atrial volume curves defined as cavity volume over time (dV/t) showed significant differences: early atrial peak emptying rate (PERE) (maximum rate of emptying independent of atrial contraction) in HCM was -146 ± 53 ml/s versus -227 ± 86 ml/s in CC (p < 0.0001); active atrial peak emptying rate (PERA) (maximum rate of emptying secondary to atrial contraction) in HCM was -256 ± 80 ml/s versus -216 ± 104 ml/s in CC (p = 0.05); the atrial PER E/A ratio in HCM was 0.6 ± 0.2 versus 1.05 ± 0.5 in CC (p < 0.0001). CONCLUSIONS: This study demonstrated that in HCM patients with early diastolic dysfunction the parameters of left atrial function assessed by CMR are impaired before the ventricular diastolic indexes such as the early peak filling rate and the active peak filling rate.
Authors: S R Ommen; R A Nishimura; C P Appleton; F A Miller; J K Oh; M M Redfield; A J Tajik Journal: Circulation Date: 2000-10-10 Impact factor: 29.690
Authors: Bernard J Gersh; Barry J Maron; Robert O Bonow; Joseph A Dearani; Michael A Fifer; Mark S Link; Srihari S Naidu; Rick A Nishimura; Steve R Ommen; Harry Rakowski; Christine E Seidman; Jeffrey A Towbin; James E Udelson; Clyde W Yancy Journal: Circulation Date: 2011-11-08 Impact factor: 29.690
Authors: Qing Zhang; Leo C C Kum; Pui-Wai Lee; Yat-Yin Lam; Eugene B Wu; Hong Lin; Gabriel Wai-Kwok Yip; LiWen Wu; Cheuk-Man Yu Journal: J Am Soc Echocardiogr Date: 2006-04 Impact factor: 5.251
Authors: Sherif F Nagueh; Christopher P Appleton; Thierry C Gillebert; Paolo N Marino; Jae K Oh; Otto A Smiseth; Alan D Waggoner; Frank A Flachskampf; Patricia A Pellikka; Arturo Evangelisa Journal: Eur J Echocardiogr Date: 2009-03
Authors: D W Sohn; I H Chai; D J Lee; H C Kim; H S Kim; B H Oh; M M Lee; Y B Park; Y S Choi; J D Seo; Y W Lee Journal: J Am Coll Cardiol Date: 1997-08 Impact factor: 24.094
Authors: Ashraf M Anwar; Osama I I Soliman; Attila Nemes; Marcel L Geleijnse; Folkert J ten Cate Journal: Int J Cardiovasc Imaging Date: 2007-05-31 Impact factor: 2.357
Authors: Fabrizio Ricci; Nay Aung; Ross Thomson; Redha Boubertakh; Claudia Camaioni; Sara Doimo; Mihir M Sanghvi; Kenneth Fung; Mohammed Y Khanji; Aaron Lee; James Malcolmson; Cesare Mantini; José Paiva; Sabina Gallina; Artur Fedorowski; Saidi A Mohiddin; Giovanni Donato Aquaro; Steffen E Petersen Journal: Eur Heart J Cardiovasc Imaging Date: 2019-12-01 Impact factor: 6.875