Takahashi K, Honda M, Furuse M, Yanagisawa M, Saitoh K
Department of Radiology, Jichi Medical School Hospital, Tochigi, Japan.
J Comput Assist Tomogr. 1996 Sep-Oct;20(5):742-8. doi: 10.1097/00004728-199609000-00011.
Our goal was to describe the pulmonary parenchymal manifestations of Takayasu arteritis visualized on CT.
We assessed the CT findings for the pulmonary parenchyma in 25 patients with Takayasu arteritis and compared them with those visualized by pulmonary angiography (n = 20) and radionuclide perfusion scintigraphy (n = 19).
A review of the CT scans revealed a total of 33 low attenuation areas in the lung (11 patients), subpleural reticulolinear changes (12 patients), and pleural thickening (9 patients). The low attenuation areas were preferentially seen in patients with pulmonary arteritis and corresponded to pulmonary angiographic staining and scintigraphic perfusion defects. No significant correlation was found between other CT findings and pulmonary arteritis.
The findings suggest that pulmonary low attenuation areas observed on CT represent regional hypoperfusion due to pulmonary arteritis. We speculate that pulmonary thromboembolism may contribute to other CT findings for the pleura and adjacent lung.
我们的目标是描述在CT上显示的高安动脉炎的肺实质表现。
我们评估了25例高安动脉炎患者肺实质的CT表现，并将其与20例肺血管造影和19例放射性核素灌注闪烁扫描的结果进行比较。
对CT扫描的回顾显示，肺部共有33个低密度区（11例患者）、胸膜下网状线性改变（12例患者）和胸膜增厚（9例患者）。低密度区在肺动脉炎患者中更常见，且与肺血管造影染色及闪烁扫描灌注缺损相对应。未发现其他CT表现与肺动脉炎之间存在显著相关性。
这些发现表明，CT上观察到的肺部低密度区代表了由于肺动脉炎导致的局部灌注不足。我们推测肺血栓栓塞可能是胸膜及邻近肺组织其他CT表现的原因。
