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As unilateral perfusion deficits of an entire lobe are generally not due to pulmonary embolism, further CT angiography and cardiac MRI were conducted. These examinations revealed high-grade left pulmonary vein stenosis (PVS) caused by pulmonary vein isolation performed for atrial fibrillation 3 and 4 years earlier. Thus, in addition to, for example, neoplastic processes or pulmonary congenital vascular abnormalities, PVS must be considered as a differential diagnosis and possible pitfall in ventilation/perfusion SPECT/CT in dyspneic pa

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How to Repair Car Keys Car keys might seem tiny and insignificant, however they are essential to the operation of your vehicle. The cost of replacing a traditional or modern transponder car key can range from $200 to upwards of $200. However, there are ways to repair your car keys at home with a fraction of the cost. This article will go over the most frequently encountered car keys problems and their DIY solutions. Dead Key Fob Batteries Cars are equipped with a remote key fob that makes opening the