结石内部结构对尿路结石断裂行为的影响。

The influence of internal stone structure upon the fracture behaviour of urinary calculi.

作者信息

Pittomvils G, Vandeursen H, Wevers M, Lafaut J P, De Ridder D, De Meester P, Boving R, Baert L

机构信息

Catholic University Leuven, Department of Didactical Physics, Belgium.

出版信息

Ultrasound Med Biol. 1994;20(8):803-10. doi: 10.1016/0301-5629(94)90037-x.

DOI:10.1016/0301-5629(94)90037-x

PMID:7863569

Abstract

In vitro extracoporeal shock wave lithotripsy (ESWL) on different types of urinary calculi, in combination with microfocus x-ray and microphotography, illustrates the importance of the internal stone structure. Calculi with a rough surface layered structure (calcium oxalate monohydrate) and untextured calculi (cystine) are characterized by a low stone fragility, whereas coarse-grain calculi (calcium oxalate dihydrate, struvite), and calculi with a smooth surface layered structure (uric acid), are very fragile. Shell-like fragmentation in layered calculi, with smooth surface of the crystalline laminations, suggests that the stone matrix influenced the propagation of the shock wave energy inside the stone.

摘要

对不同类型的尿路结石进行体外体外冲击波碎石术（ESWL），并结合微焦点X射线和显微摄影，阐明了结石内部结构的重要性。具有粗糙表面分层结构的结石（一水合草酸钙）和无纹理的结石（胱氨酸）的特点是结石脆性低，而粗粒结石（二水合草酸钙、磷酸镁铵）和具有光滑表面分层结构的结石（尿酸）非常易碎。分层结石中呈壳状破碎，结晶薄片表面光滑，表明结石基质影响了冲击波能量在结石内部的传播。