Gehling U, Tuengerthal S, Jackowski M, Düx M, Schulz V
Abteilung Innere Medizin-Pneumologie, Thoraxklinik Heidelberg.
Pneumologie. 1993 Jan;47(1):19-25.
In the course of preoperative diagnosis, intravasal sonography for tumour imaging was conducted in three patients suffering from central bronchial carcinoma. The catheters of 6.0 or 4.8 French diameter were advanced in each case after pulmonary angiography via the left or right pulmonary artery up to the tumour area. Endosonographic tumour imaging was compared with the findings of the other preoperative diagnostic measures and in two cases with intraoperative and postoperative findings. The vascular walls of the central pulmonary arterial segments showed sonographically no typical three-layer structure. In all cases, however, tumour infiltration was showed up by disappearance of the vascular wall reflexes in the relevant pulmonary artery branches. Visualisation of the mediastinal pulmonary artery segments or of the main stem of the pulmonary artery is difficult with the wire-guided catheters used, since these cannot be stabilised in the centre of the vessel. Development of suitable catheters with low-frequency transducers and greater depth of penetration is imperative especially for the diagnostically important visualisation of the surrounding mediastinal structures.
在术前诊断过程中，对3例中心型支气管癌患者进行了血管内超声肿瘤成像检查。在每例患者中，经左或右肺动脉进行肺血管造影后，将直径为6.0或4.8法国规格的导管推进至肿瘤区域。将超声内镜肿瘤成像结果与其他术前诊断措施的结果进行比较，并在2例患者中与术中及术后结果进行比较。中央肺动脉段的血管壁在超声检查中未显示典型的三层结构。然而，在所有病例中，相关肺动脉分支的血管壁反射消失显示出肿瘤浸润。使用的线引导导管难以对纵隔肺动脉段或肺动脉主干进行可视化，因为这些导管无法在血管中心稳定。开发具有低频换能器和更大穿透深度的合适导管尤为重要，特别是对于周围纵隔结构的重要诊断性可视化。
