Division of Vascular and Interventional Radiology, Department of Radiology, Georgetown University Hospital, 3800 Reservoir Road NW, Washington, DC 20007, USA.
Clin Plast Surg. 2011 Apr;38(2):219-28. doi: 10.1016/j.cps.2011.03.002.
Perforator-based free flaps rely on the appropriate dominant vessel supplying the vascular territory of the flap. Preoperative knowledge of the vascular anatomy can improve outcome and diminish surgical time. Several preoperative imaging techniques exist for surgical planning. Computed tomographic and magnetic resonance angiography are two emerging modalities that provide exceptional anatomic detail. Despite the growing utilization of cross-sectional imaging for preoperative planning, each modality has specific technical considerations that are necessary to consider in order to produce a quality study.
穿支皮瓣依赖于适当的优势血管供应皮瓣的血管区域。术前了解血管解剖结构可以改善手术效果，减少手术时间。有几种术前影像学技术可用于手术规划。计算机断层扫描和磁共振血管造影是两种新兴的模式，提供了极好的解剖细节。尽管越来越多地将横断面成像用于术前规划，但每种模式都有特定的技术考虑因素，为了生成高质量的研究，这些因素都必须考虑在内。
