Taniguchi Nobuyuki, Takano Ryuuichi, Itoh Kouichi, Kaneko Syukuko, Onoguchi Akira, Wang Yi, Kuwata Tomoyuki, Shigeta Kouichiro, Ono Tomoko
Department of Clinical Laboratory Medicine, Jichi Medical School, Yakushiji, Minamikawachi-machi, 329-0498, Kawachi-gun, Tochigi-ken, Japan.
Department of Nephrology, Jichi Medical School, Yakushiji, Minamikawachi-machi, 329-0498, Kawachi-gun, Tochigi-ken, Japan.
J Med Ultrason (2001). 2003 Mar;30(1):3-11. doi: 10.1007/BF02485164.
Application of the velocity profile method is recommended for reliable measurement of flow volume in larger vessels, and ultrasonic flowmetry is a useful clinical tool for this purpose. We used the velocity profile in conjunction with a minor modification in the conventional velocity profile method and examined the reproducibility of flowmetry from color Doppler data. Data of three examiners were allowed to analyze intraobserver reproducibility and interobserver agreement in the common carotid artery, and we measured flow volume in the peripheral vessels of healthy individuals. Estimated flow volumes in five healthy examinees were 350 to 550 ml/min and did not vary significantly between examiners. Interobserver correlation was good (r 1=0.63), but intraobserver correlations in two sonographers were excellent (r 1=0.85) in by one who was experienced in this method and poor (r 1=0.32) in the other. Good interobserver agreement and intraobserver reproducibility of experienced examiners suggests that this method is reliable. Values obtained with normal controls averaged 438±78 (mean±SD) ml/min and 449±64 ml/min, respectively, in the right and left carotid arteries (n=12) and 120±31 ml/min and 83±23 ml/min, respectively, in the right and left vertebral arteries (n=10). Normal values were 542±71 ml/min (n=11) in the right renal artery, 1210±211 ml/min in the abdominal artery (n=10), and 799±182 ml/min in the main portal vein (n=17). Arterial blood flow volume can measure reliably by the velocity profile color Doppler method.
推荐应用速度剖面法来可靠地测量较大血管中的血流量，而超声流量计是用于此目的的一种有用的临床工具。我们将速度剖面与传统速度剖面法的微小修改相结合，研究了彩色多普勒数据的血流测量再现性。允许三位检查者的数据用于分析颈总动脉内观察者的再现性和观察者间的一致性，并且我们测量了健康个体外周血管中的血流量。五名健康受试者的估计血流量为350至550毫升/分钟，检查者之间无显著差异。观察者间相关性良好（r 1 = 0.63），但两名超声检查者中，一名熟悉该方法的观察者内相关性极佳（r 1 = 0.85），另一名则较差（r 1 = 0.32）。经验丰富的检查者具有良好的观察者间一致性和观察者内再现性，表明该方法可靠。正常对照组在右、左颈动脉（n = 12）中的值分别平均为438±78（平均值±标准差）毫升/分钟和449±64毫升/分钟，在右、左椎动脉（n = 10）中的值分别为120±31毫升/分钟和83±23毫升/分钟。右肾动脉的正常值为542±71毫升/分钟（n = 11），腹主动脉为1210±211毫升/分钟（n = 10），门静脉主干为799±182毫升/分钟（n = 17）。动脉血流量可通过速度剖面彩色多普勒法可靠测量。
