Reproducibility of ejection-fraction determinations by equilibrium radionuclide angiography in response to supine bicycle exercise: concise communication.
Reproducibility of ejection-fraction determinations by equilibrium radionuclide angiography in response to supine bicycle exercise: concise communication.
复制标题
仰卧自行车运动中平衡放射性核素血管造影测定射血分数的再现性：简洁的交流。
DOI：
--
复制
发表时间：
1979
影响因子：
9.3
通讯作者：
W. Ashburn
中科院分区：
文献类型：
--
作者：
M. Pfisterer;A. Battler;S. M. Swanson;R. Slutsky;V. Froelicher;W. Ashburn
16例稳定的慢性冠状动脉疾病患者在平均15天内进行了两次研究，以评估静息、仰卧自行车运动（ex）和恢复期（rec）时平衡法放射性核素血管造影（EQ）测定的射血分数（EF）的可重复性。注射20- 25 mCi Tc-99 m标记的人血清白蛋白后，在休息时、运动的几个阶段（submax，max）和恢复期间（rec 1 = min 2 + 3，rec 2 = min 9 + 10）分析2 min的数据。每个病人都达到了类似的（心率）X两项研究的平均EF值分别为：21280 +/- 5200和20390 +/- 4140 mmHg/min。第一项和第二项研究的平均EF值分别为：静息时（53.0 ± 10.8）%，52.5 ± 10.4）%（r = 0.95;次最大值ex（51.4 +/- 12.0）%，（52.1 +/- 12.8）%，（r = 0.91）;最大值（50.6 +/- 12.6）%，（51.6 +/- 12.9）%（r = 0.97）; rec1（62.7 +/- 11.6）%，（62.4 +/- 12.2）%（r = 0.95）; rec2（55.5%/- 10.8）%，（57.2 +/- 11.7）%（r = 0.91）。在稳定的患者中，在休息、仰卧自行车运动和运动恢复期间，EQ测定的EF的重现性极佳。
Sixteen patients with stable, chronic coronary artery disease were studied twice within and average of 15 days to evaluate the reproducibility of ejection fraction (EF) determined by equilibrium radionuclide angiography (EQ) at rest, during supine bicycle exercise (ex), and in the recovery period (rec). Following injection of 20--25 mCi of Tc-99m-tagged human serum albumin, data were analyzed for 2-min periods at rest, during several stages of exercise (submax, max), and during recovery (rec1 = minutes 2 + 3, rec2 = minutes 9 + 10). Each patient reached similar (heart rate) X (blood pressure) products in the two studies: 21280 +/- 5200 compared with 20390 +/- 4140 mmHg/min. Mean EFs for the first and second studies were: at rest (53.0 +/- 10.8)%, 52.5 +/- 10.4)% (r = 0.95; submax ex (51.4 +/- 12.0)%, (52.1 +/- 12.8)%, (r = 0.91); max ex (50.6 +/- 12.6)%, (51.6 +/- 12.9)% (r = 0.97); rec1 (62.7 +/- 11.6)%, (62.4 +/- 12.2)% (r = 0.95); rec2 (55.5 %/- 10.8)%, (57.2 +/- 11.7)% (r = 0.91). In stable patients, the reproducibility of EF determined by EQ is excellent during rest, supine bicycle exercise, and recovery from exercise.