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目的分析肺栓塞的MSCT的影像表现,探讨螺旋CT对其诊断价值。方法回顾性分析25例肺栓塞的CT表现。全部病例均行胸部CT平扫及CT肺血管成像。结果肺栓塞的直接征象为肺血管成像显示肺动脉内充盈缺损。本组25例肺栓塞共累及肺动脉191支,其中,中心型44支(23.0%),偏心型115支(60.2%),附壁型7支(3.7%),闭塞型25支(13.1%)。间接征象包括不规则实变影15例;片状磨玻璃影6例;局限性索条状影4例;“马赛克”征5例;胸腔积液16例;心包少量积液3例;3例除栓子外未见异常。结论CTAP是诊断肺栓塞快速、安全有效、无创的诊断方法,具有较高的诊断价值。
Objective To analyze the imaging findings of MSCT in patients with pulmonary embolism and investigate the diagnostic value of spiral CT. Methods The CT findings of 25 cases of pulmonary embolism were retrospectively analyzed. Thoracic CT scan and CT pulmonary angiography were performed in all cases. Results The direct signs of pulmonary embolism were pulmonary vascular imaging of pulmonary artery filling defects. The group of 25 cases of pulmonary embolism involving a total of 191 pulmonary arteries, of which 44 were central (23.0%), eccentric 115 (60.2%), adherent 7 (3.7%) occlusion 25 (13.1% . Indirect signs, including irregular consolidation of 15 cases; sheet glass mill shadow in 6 cases; 4 cases of limited cord-like shadow; “mosaic” sign in 5 cases; pleural effusion in 16 cases; small pericardial effusion in 3 cases; 3 cases without exception outside the embolus. Conclusion CTAP is a rapid, safe, effective and noninvasive diagnostic method for the diagnosis of pulmonary embolism. It has a high diagnostic value.