速度時間積分
速度時間積分（英語：Velocity Time Integral，縮寫VTI）是一種臨床多普勒超聲的血流測量指標，等於速度時間曲線下的面積。可用VTI和心臟截面積計算心輸出量。左心室流出道（LVOT）、頸動脈或其他血管都可以計算VTI。[1][2][3]
參考文獻
- ^ Blanco, Pablo; Aguiar, Francisco Miralles; Blaivas, Michael. Rapid Ultrasound in Shock (RUSH) Velocity-Time Integral. Journal of Ultrasound in Medicine. 2015, 34 (9): 1691–1700 [2021-04-22]. ISSN 1550-9613. doi:10.7863/ultra.15.14.08059. （原始內容存檔於2021-04-25） （英語）.
- ^ Miller, Ashley; Mandeville, Justin. Predicting and measuring fluid responsiveness with echocardiography. Echo Research and Practice. June 2016, 3 (2): G1–G12 [2021-04-22]. ISSN 2055-0464. PMC 4989101
. PMID 27249550. doi:10.1530/ERP-16-0008. （原始內容存檔於2021-06-04）.
- ^ Perrino, Albert C.; Harris, Stephen N.; Luther, Martha A. Intraoperative Determination of Cardiac Output Using Multiplane Transesophageal Echocardiography A Comparison to Thermodilution. Anesthesiology: The Journal of the American Society of Anesthesiologists. 1998-08-01, 89 (2): 350–357. ISSN 0003-3022 （英語）.
