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本文对20例经病理证实的大肠癌离体标本血管灌注造影与术前气钡双重造影表现进行了对照分析。结果表明离体标本血管灌注后的直肠微血管结构特点是:肿瘤区新生血管、肿瘤染色、肿瘤包绕动脉、营养血管的增粗,增多、屈曲蛇行,血管移位等表现与报导一致。标本灌注测得肿瘤范围大小不受外来因素的干扰,直肠的血液供应大部分来自直肠上动脉;直肠的微血管分支可以观察肿瘤的侵及深度。但在活体血管造影时要注重直肠上动脉与直肠中动脉吻合支的形成,要注意外界因素对血管造影的影响。直肠气钡双重造影的表现与微血管结构的改变是相一致的。为活体造影检查提供了阅片基本因素,奠定了基础。
In this paper, 20 cases of pathologically confirmed colorectal cancer in vitro vascular perfusion imaging and pre-operative airway double contrast performance were compared. The results showed that the characteristics of rectal microvessels after vascular perfusion of isolated specimens were: neovascularization in tumor area, tumor staining, tumor-wrapped arteries, thickening of nutrient vessels, increase in flexion, meandering, and displacement of blood vessels were consistent with reports. Specimens perfusion measured tumor size is not interfered by external factors, rectal blood supply from most of the upper rectal artery; rectal microvascular branch can observe the depth of tumor invasion. However, attention should be paid to the formation of anastomotic branch of the upper rectal artery and the middle rectal artery in living angiography. Attention should be paid to the influence of external factors on angiography. The performance of rectal airway double contrast is consistent with the change in microvascular structure. The basic factors for reading were provided for the angiography examination and laid the foundation.