TY - JOUR
T1 - Non-invasive assessment of coronary flow velocity reserve
T2 - A new method using transthoracic doppler echocardiography
AU - Yang, Ya
AU - Bartel, Thomas
AU - Eggebrecht, Holger
AU - Latina, Loredana
AU - Von Birgelen, Clemens
AU - Caspari, Guido
AU - Wang, Xinfang
AU - Erbel, Raimund
PY - 2002/12/1
Y1 - 2002/12/1
N2 - Transthoracic Doppler echocardiography (TTDE) allows noninvasive flow measurement in the distal left anterior descending artery (LAD). The feasibility of detecting coronary flow by contrast-enhanced TTDE with second harmonic technique was assessed, the coronary flow velocity reserve (CFVR) was evaluated in comparison to intracoronary Doppler flow (ICD) analysis and the CFVR after PTCA in LAD was investigated. In 77 (96 %) of 80 patients, CFVR was successfully determined with intravenous adenosine infusion. Doppler signal quality was evaluated in the first 46 patients by use of intravenous Levovist infusion and second harmonic technique. The Doppler flow was not visible in 1.patient only. CFVR determined from TTDE (2.77±0.65) was correlated closely with those from ICD (2.88±0.78) measurements (y=0.73x+0.67, r=0. 87, P<0.001). In conclusion, TTDE is a feasible method and provides reliable data on CFVR which can be used for follow-up after PTCA.
AB - Transthoracic Doppler echocardiography (TTDE) allows noninvasive flow measurement in the distal left anterior descending artery (LAD). The feasibility of detecting coronary flow by contrast-enhanced TTDE with second harmonic technique was assessed, the coronary flow velocity reserve (CFVR) was evaluated in comparison to intracoronary Doppler flow (ICD) analysis and the CFVR after PTCA in LAD was investigated. In 77 (96 %) of 80 patients, CFVR was successfully determined with intravenous adenosine infusion. Doppler signal quality was evaluated in the first 46 patients by use of intravenous Levovist infusion and second harmonic technique. The Doppler flow was not visible in 1.patient only. CFVR determined from TTDE (2.77±0.65) was correlated closely with those from ICD (2.88±0.78) measurements (y=0.73x+0.67, r=0. 87, P<0.001). In conclusion, TTDE is a feasible method and provides reliable data on CFVR which can be used for follow-up after PTCA.
KW - Coronary flow velocity reserve
KW - Doppler echocardiography
KW - Intracoronary doppler
UR - http://www.scopus.com/inward/record.url?scp=3142648911&partnerID=8YFLogxK
U2 - 10.1007/BF02857683
DO - 10.1007/BF02857683
M3 - Article
C2 - 12658763
AN - SCOPUS:3142648911
SN - 0257-716X
VL - 22
SP - 158
EP - 163
JO - Journal of Huazhong University of Science and Technology - Medical Sciences
JF - Journal of Huazhong University of Science and Technology - Medical Sciences
IS - 2
ER -
