title: Assessment of left ventricular function from M-mode measurement of circumflex artery motion recorded by coronary angiography.
abstract: OBJECTIVE
  To evaluate the usefulness of M-mode measurement of circumflex artery motion (CAM) for assessment of left ventricular (LV) function.
  
  
  METHODS
  Seventy-two patients referred for coronary angiography and LV angiography were included. Ejection fraction (EF) was calculated from LV angiography and systolic and diastolic parameters of CAM were measured by M-mode from coronary angiography. Twenty-three patients, examined by echocardiography of mitral annulus motion (MAM) within 24 h before the angiographic examination, formed a subgroup for comparison between angiographic M-mode of CAM and echocardiographic M-mode of MAM.
  
  
  RESULTS
  In addition to previous reported CAM amplitude and longitudinal fractional shortening (FSL) the maximal systolic velocity of CAM can be reliably recorded by M-mode. The diastolic indices, atrial contribution to the total amplitude and maximal early and late diastolic velocities, are also well monitored by M-mode of CAM in comparison with echocardiographic MAM.
  
  
  CONCLUSIONS
  LV systolic and diastolic function can be assessed by M-mode of CAM.
authors.affiliation: Department of Radiology, Orebro University Hospital, Orebro, Sweden. anders.kahari@orebroll.se
authors.forename: Anders
authors.initials: A
authors.lastname: Kähäri
authors.forename: Per
authors.initials: P
authors.lastname: Thunberg
authors.forename: Kent
authors.initials: K
authors.lastname: Emilsson
authors.forename: Håkan
authors.initials: H
authors.lastname: Geijer
authors.forename: Torbjörn
authors.initials: T
authors.lastname: Andersson
authors.forename: Birger
authors.initials: B
authors.lastname: Wandt
mesh_terms: D000328:Adult; D000368:Aged; D017023:Coronary Angiography / Q000379:methods*; D003326:Coronary Circulation / Q000502:physiology; D023921:Coronary Stenosis / Q000000981:diagnostic imaging / Q000503:physiopathology; D003331:Coronary Vessels / Q000000981:diagnostic imaging*; D003971:Diastole / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000502:physiology; D013599:Systole / Q000502:physiology; D014463:Ultrasonography; D016277:Ventricular Function, Left