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3 天之前 · Does estimating a patient's ejection fraction — the measurement of how efficiently the heart is pumping — require watching the heart in action? What if that ratio of the left ventricle's …

2025年1月29日 · Ejection fraction is a measurement of the percentage of blood leaving the heart each time it squeezes. When the heart squeezes, it's called a contraction. Ejection fraction is …

2015年5月20日 · The prevalence of this syndrome, termed heart failure with preserved ejection fraction (HFpEF), continues to increase in the developed world, likely because of the …

2025年5月10日 · 左心室（LV）射血分数约 50% 至 70% 为正常。 LV 射血分数轻度降低通常介于 41% 至 49% 之间。 LV 射血分数降低通常是在 40% 或以下。 即使射血分数正常，整体心脏功 …

2025年6月17日 · Overview A hepatobiliary iminodiacetic acid (HIDA) scan is an imaging procedure used to diagnose problems of the liver, gallbladder and bile ducts. For a HIDA scan, …

2023年8月15日 · It is common to use left ventricular ejection fraction as a way to determine prognosis. We have found this is not always the best way to determine prognosis in patients …

2025年1月21日 · Ejection fraction. Ejection fraction is a measurement of the percentage of blood leaving your heart each time it squeezes. This measurement is taken during an …

2020年10月30日 · Mayo Clinic breast radiation oncology specialists recently adopted five-fraction whole-breast radiotherapy as a new standard treatment option for patients with early-stage …

2025年1月21日 · Heart failure occurs when the heart muscle doesn't pump blood as well as it should. Blood often backs up and causes fluid to build up in the lungs and in the legs. The fluid …