Vascular trauma to the extremities and lower neck: initial assessment with intravenous digital subtraction angiography

Rapid assessment of a patient with possible major peripheral vascular injury is essential to preserve limb function. Intravenous digital subtraction angiography (IV DSA) allows rapid evaluation of these patients without the need for intraarterial examination. We report our experience in 295 vessels studied by IV DSA for the evaluation of possible traumatic arterial injury to the extremities or neck. Of our study population requiring angiography (469 patients), 63.4% were appropriate candidates for IV DSA. Of the vessels studied by IV DSA, 93.6% required no further radiologic evaluation. A normal appearance on IV DSA study indicates no major vascular injury; patients with positive studies may proceed to surgery without further interventional assessment.     

髁突形态与覆深度关系的研究

有关不同覆深度者的解剖形态和肌肉功能差异的研究,已有诸多文献报道.曲面断层片是正畸诊断中最常用的X线检查手段之一.本项研究的目的是探讨不同覆深度者的髁突形态在曲面断层片中有何差异,不同髁突形态类型在正常和不同覆错畸形患者中的分布如何.