Markiewicz W, Oren I, Nagler A, Sternberg A, Finkelstein R, Edoute Y
Isr J Med Sci. 1986 Feb;22(2):91-4.
In order to quantify information provided by echocardiography for residents in internal medicine and for cardiologists, 150 selected patients were studied by echocardiography, and the ultrasonic diagnosis was compared with the clinical evaluation. Among 144 patients with adequate visualization of the heart, echocardiography provided findings that were totally unexpected to the residents in 13 (9%) and to the cardiologist in 9 (6%) patients. Echocardiography also provided information relevant to the management of the patient in another one-third of the cases. Both the residents and the cardiologist were able to correctly predict the cause of cardiomegaly and the mechanism of heart failure in most patients presenting with these findings. Despite the introduction of cross-sectional echocardiography, the amount of information contributed by echocardiography has not increased since 1978, when a similar study was performed at our institution. This may reflect increased clinical skill among residents, probably due to long-term exposure to echocardiography during their training.
为了量化超声心动图为内科住院医师和心脏病专家提供的信息，对150例选定患者进行了超声心动图检查，并将超声诊断结果与临床评估结果进行了比较。在144例心脏图像显示清晰的患者中，超声心动图发现的结果在13例（9%）患者中令住院医师完全意想不到，在9例（6%）患者中令心脏病专家完全意想不到。超声心动图还在另外三分之一的病例中提供了与患者治疗相关的信息。对于大多数出现心脏扩大和心力衰竭机制的患者，住院医师和心脏病专家都能够正确预测其病因。尽管引入了横断面超声心动图，但自1978年我们机构进行类似研究以来，超声心动图提供的信息量并未增加。这可能反映出住院医师临床技能的提高，这可能是由于他们在培训期间长期接触超声心动图。
