Abstract
Introduction: The combination of pulsed wave (PW) and tissue Doppler imaging (TDI) has been proposed as a new method to assess left ventricular (LV) mechanical dyssynchrony (LVMD), but results have not been validated. We investigated the correlation of a combination of PW and TDI with a positive response to cardiac resynchronization therapy (CRT). Material and methods: We studied 108 consecutive patients who received CRT. Patients with atrial fibrillation were excluded. The time difference (TPW-TDI) between onset of QRS to the end of LV ejection by PW (TPW) and onset of QRS to the end of the systolic wave in LV basal segments with greatest delay by TDI (TTDI) was measured before CRT and during short-term and long-term follow-up. Results: The TPW-TDI interval before CRT was 74 ±48 ms. Intra-observer variabilities for TPW and TTDI were 1.5 ±0.24% and 1 ±0.17%. Inter-observer variabilities for T PW and TTDI were 1 ±0.36% and 1 ±0.64%, respectively. TPW-TDI > 50 ms was defined as the cutoff value for diagnosis of LVMD by receiver operating curve (ROC) analysis. During follow-up of 15 ±11 months, the sensitivity and specificity of TPPW-TDI to predict a positive response to CRT were 98% and 82%, respectively. The area under the ROC curve was 0.92. There was a significant agreement between LVMD determined by TPW-TDI and the positive response to CRT (κ = 0.80). Conclusions: Left vertricular dyssynchrony detected by the method combining PW and TDI demonstrated a high reproducibility, sensitivity, specificity and agreement with a positive response to CRT.
| Original language | English |
|---|---|
| Pages (from-to) | 519-525 |
| Number of pages | 7 |
| Journal | Archives of Medical Science |
| Volume | 6 |
| Issue number | 4 |
| DOIs | |
| State | Published - Aug 2010 |
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All Science Journal Classification (ASJC) codes
- Medicine(all)
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Evaluation of left ventricular dyssynchrony using combined pulsed wave and tissue Doppler imaging. / Shen, Xuedong; Aronow, Wilbert S.; Anand, Kishlay; Nair, Chandra K.; Holmberg, Mark Jeffrey; Hee, Tom; Maciejewski, Stephanie; Esterbrooks, Dennis J.
In: Archives of Medical Science, Vol. 6, No. 4, 08.2010, p. 519-525.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Evaluation of left ventricular dyssynchrony using combined pulsed wave and tissue Doppler imaging
AU - Shen, Xuedong
AU - Aronow, Wilbert S.
AU - Anand, Kishlay
AU - Nair, Chandra K.
AU - Holmberg, Mark Jeffrey
AU - Hee, Tom
AU - Maciejewski, Stephanie
AU - Esterbrooks, Dennis J.
PY - 2010/8
Y1 - 2010/8
N2 - Introduction: The combination of pulsed wave (PW) and tissue Doppler imaging (TDI) has been proposed as a new method to assess left ventricular (LV) mechanical dyssynchrony (LVMD), but results have not been validated. We investigated the correlation of a combination of PW and TDI with a positive response to cardiac resynchronization therapy (CRT). Material and methods: We studied 108 consecutive patients who received CRT. Patients with atrial fibrillation were excluded. The time difference (TPW-TDI) between onset of QRS to the end of LV ejection by PW (TPW) and onset of QRS to the end of the systolic wave in LV basal segments with greatest delay by TDI (TTDI) was measured before CRT and during short-term and long-term follow-up. Results: The TPW-TDI interval before CRT was 74 ±48 ms. Intra-observer variabilities for TPW and TTDI were 1.5 ±0.24% and 1 ±0.17%. Inter-observer variabilities for T PW and TTDI were 1 ±0.36% and 1 ±0.64%, respectively. TPW-TDI > 50 ms was defined as the cutoff value for diagnosis of LVMD by receiver operating curve (ROC) analysis. During follow-up of 15 ±11 months, the sensitivity and specificity of TPPW-TDI to predict a positive response to CRT were 98% and 82%, respectively. The area under the ROC curve was 0.92. There was a significant agreement between LVMD determined by TPW-TDI and the positive response to CRT (κ = 0.80). Conclusions: Left vertricular dyssynchrony detected by the method combining PW and TDI demonstrated a high reproducibility, sensitivity, specificity and agreement with a positive response to CRT.
AB - Introduction: The combination of pulsed wave (PW) and tissue Doppler imaging (TDI) has been proposed as a new method to assess left ventricular (LV) mechanical dyssynchrony (LVMD), but results have not been validated. We investigated the correlation of a combination of PW and TDI with a positive response to cardiac resynchronization therapy (CRT). Material and methods: We studied 108 consecutive patients who received CRT. Patients with atrial fibrillation were excluded. The time difference (TPW-TDI) between onset of QRS to the end of LV ejection by PW (TPW) and onset of QRS to the end of the systolic wave in LV basal segments with greatest delay by TDI (TTDI) was measured before CRT and during short-term and long-term follow-up. Results: The TPW-TDI interval before CRT was 74 ±48 ms. Intra-observer variabilities for TPW and TTDI were 1.5 ±0.24% and 1 ±0.17%. Inter-observer variabilities for T PW and TTDI were 1 ±0.36% and 1 ±0.64%, respectively. TPW-TDI > 50 ms was defined as the cutoff value for diagnosis of LVMD by receiver operating curve (ROC) analysis. During follow-up of 15 ±11 months, the sensitivity and specificity of TPPW-TDI to predict a positive response to CRT were 98% and 82%, respectively. The area under the ROC curve was 0.92. There was a significant agreement between LVMD determined by TPW-TDI and the positive response to CRT (κ = 0.80). Conclusions: Left vertricular dyssynchrony detected by the method combining PW and TDI demonstrated a high reproducibility, sensitivity, specificity and agreement with a positive response to CRT.
UR - http://www.scopus.com/inward/record.url?scp=77956793027&partnerID=8YFLogxK
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U2 - 10.5114/aoms.2010.14462
DO - 10.5114/aoms.2010.14462
M3 - Article
C2 - 22371794
AN - SCOPUS:77956793027
VL - 6
SP - 519
EP - 525
JO - Archives of Medical Science
JF - Archives of Medical Science
SN - 1734-1922
IS - 4
ER -