title: Can transesophageal pulse-wave tissue Doppler imaging be used to evaluate left ventricular function?
abstract: BACKGROUND
  This study aimed to evaluate the efficiency of transesophageal tissue Doppler echocardiography (TDE) in evaluation of the left ventricular functions. To this end, the data obtained by transoesophageal tissue Doppler echocardiography and by transthoracic tissue Doppler echocardiography were compared simultaneously.
  
  
  METHODS
  Nineteen consecutive patients (7 female and 12 male) underwent a clinically indicated study. In transthoracic (TTE) and transoesophageal (TEE) echocardiographic study, a Vingmed System Five Doppler echocardiographic unit (GE Vingmed) was used. For the assessment of the left ventricular function using transthoracic and transoesophageal TDE, the mitral annular peak systolic (S), early diastolic (E), late diastolic velocities (A), late to early velocity ratio (E/A), deceleration times (DT), left ventricular isovolumetric relaxation times (IVRT) were measured at the lateral, medial, anterior, and posterior corners at the mitral annulus by activating TDE mode in the transthoracic and transoesophageal apical four- and two-chamber view. Bland-Altman plots were used to compare the two measurement techniques. The differences between the groups were assessed by Mann-Whitney U test. All the data were expressed as mean +/- SD. A P-value of <0.05 was considered significant.
  
  
  RESULTS
  There were no significant differences between two techniques in terms of blood pressure and heart rate. Two techniques were compared for the transthoracic and transoesophageal TDE parameters. Bland-Altman analysis showed comparable values for E, A, E/A, S, and mE/E, although the measurements of DT and IVRT were different.
  
  
  CONCLUSIONS
  PW tissue Doppler echocardiographic approach during TEE may be suitable for assessment of the left ventricular function.
authors: Department of Cardiology, Medical School Hospital, Ataturk University, 25050 Erzurum, Turkey. drserdarsevimli@hotmail.com
authors: Serdar
authors: S
authors: Sevimli
authors: Sakir
authors: S
authors: Arslan
authors: Fuat
authors: F
authors: Gundogdu
authors: Enbiya
authors: E
authors: Aksakal
authors: Eyup
authors: E
authors: Buyukkaya
authors: Hakan
authors: H
authors: Tas
authors: Yahya
authors: Y
authors: Islamoglu
authors: H Yekta
authors: HY
authors: Gurlertop
authors: Mustafa Kemal
authors: MK
authors: Erol
authors: Mahmut
authors: M
authors: Acikel
authors: Huseyin
authors: H
authors: Senocak
authors: Sule
authors: S
authors: Karakelleoglu
authors: Necip
authors: N
authors: Alp
mesh_terms: D000328:Adult; D015150:Echocardiography, Doppler; D017548:Echocardiography, Transesophageal; D005260:Female; D006801:Humans; D008297:Male; D018709:Statistics, Nonparametric; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging* / Q000209:etiology