Mathis J M, Barr J D, Jungreis C A, Horton J A
Department of Radiology, University of Virginia Health Sciences Center, Charlottesville 22908.
AJNR Am J Neuroradiol. 1994 Nov;15(10):1831-6.
To compare and contrast the physical characteristics of balloon catheter systems used for temporary cerebrovascular occlusion.
Commonly used temporary occlusion systems were evaluated to determine: (a) balloon compliance; (b) balloon diameter versus volume; (c) balloon pressure versus volume; (d) simulated vessel wall pressure versus volume; (e) balloon failure volume; and (f) balloon deflation rate. Observations were made concerning construction differences that affect the potential safety of a balloon system or the way it is used.
The nondetachable balloon system demonstrating the best compliance characteristics and lowest radial pressure generation was the nondetachable silicone balloon (Interventional Therapeutics Corporation, San Francisco, Calif). Diameter versus volume curves for all systems reveal an initial nonlinear expansion that could contribute to vessel overexpansion during occlusion.
Balloon systems vary in construction, method of introduction, and compliance. Knowledge of these characteristics, as well as of nonlinear balloon expansion, should aid balloon selection and appropriate use while helping to minimize complications.
比较和对比用于临时脑血管闭塞的球囊导管系统的物理特性。
对常用的临时闭塞系统进行评估以确定：(a)球囊顺应性；(b)球囊直径与体积的关系；(c)球囊压力与体积的关系；(d)模拟血管壁压力与体积的关系；(e)球囊破裂体积；以及(f)球囊放气速率。对影响球囊系统潜在安全性或其使用方式的结构差异进行了观察。
表现出最佳顺应性特征且产生最低径向压力的不可拆卸球囊系统是不可拆卸硅胶球囊（介入治疗公司，加利福尼亚州旧金山）。所有系统的直径与体积曲线均显示出初始非线性膨胀，这可能在闭塞期间导致血管过度扩张。
球囊系统在结构、引入方法和顺应性方面存在差异。了解这些特性以及球囊的非线性膨胀，应有助于球囊的选择和正确使用，同时有助于将并发症降至最低。
