mrpaBNC¹²⁶⁴¹⁶⁺⁴ 基本例句 Metropolitan Region Planning Authority 都市地区规划局 Objective:To investigate CT and MRI features of pulmonary embolism and improve diagnosing value of CTPA and MRPA through analysis and comparison the CTPA and MRPA signs. 目的：通过对肺动脉栓塞的 CT与 MRI征象的分析和比较，探讨肺动脉栓塞的 CTPA与 MRPA的特征性表现，提高肺栓塞的 CTPA与 MRPA诊断应用价值。 cnki