Noninvasive assessment of coronary flow velocity and coronary flow velocity reserve in the left anterior descending coronary artery by Doppler echocardiography
Comparison with invasive technique
Takeshi Hozumi, MDa,
Kiyoshi Yoshida, MD, FACCa,
Takashi Akasaka, MDa,
Yoshio Asami, MDa,
Yumiko Ogata, MDa,
Tsutomu Takagi, MDa,
Shuichiro Kaji, MDa,
Takahiro Kawamoto, MDa,
Yoshiaki Ueda, MDa and
Shigefumi Morioka, MDa
a Division of Cardiology, Kobe General Hospital, Kobe, Japan
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Figure 1 TTDE (left) and schematic representation (right) showing coronary blood flow (arrow) in the distal LAD. LV = left ventricle.
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Figure 2 Measurements of variables of CFV recording. See text for abbreviations in remaining legends.
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Figure 3 Example of CFV recordings at rest (left) and during hyperemia (right) obtained from TTDE.
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Figure 4 Example of CFV recordings at rest (left) and during hyperemia (right) obtained from a DGW in the same patient in Figure 3.
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Figure 5 Regression (top) and difference (bottom) plots comparing APV measured by TTDE and DGW methods.
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Figure 6 Regression (top) and difference (bottom) plots comparing ADPV measured by TTDE and DGW methods.
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Figure 7 Regression (top) and difference (bottom) plots comparing ASPV measured by TTDE and DGW methods.
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Figure 8 Regression (top) and difference (bottom) plots comparing DPV measured by TTDE and DGW methods.
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Figure 9 Regression (top) and difference (bottom) plots comparing CFVR measured by TTDE and DGW methods.
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