To assess the diagnostic value of CTPA in the diagnosis of rabbit's peripheral PE, small branches of pulmonary arteries, and its ability of displaying for the hypo-perfusion parenchyma area.
阐述家兔急性周围型PE的CT表现及肺实质改变征象的病理学基础，评估CTPA对肺动脉较小分支PE的诊断价值及其显示肺栓塞低灌注区的能力。
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