Objective: To evaluate the clinical capability of ventilation-perfusion (V-P) scintigraphy and spiral ct angiography (SCTA) in the diagnosis of pulmonary embolism (PE).
An altered level of consciousness indicates the need for immediate reevaluation of the patient's oxygenation, ventilation, and perfusion status.
意识水平的改变意味着要对患者的氧和作用,通气和灌注状况进行重新评估。
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Methods The pig experimental models of pulmonary embolism and infarction were examined by X ray, ventilationperfusion scanning, helical CT, angiography.