منابع مشابه
A novel technique for peroral direct cholangioscopy.
Article Direct cholangioscopy has been possible since the 1970’s (1) but reliable intubation of the common bile duct (CBD) and second order ducts has limited the applicability of the technique. One of the limitations to accessing the ducts is the acute angulation between the duodenum and the CBD (2). Various methods have been employed to access the ducts including mother-and-baby endoscopes and...
متن کاملSimplified subjective workload assessment technique.
Although the subjective workload assessment technique (SWAT) has been widely used, it has two main problems: it is not very sensitive for low mental workloads and it requires a time-consuming card sorting pretask procedure. In this study are presented five variations of SWAT in an effort to overcome the limitations. Four of the variants used the continuous SWAT subscales while one used the disc...
متن کاملA simplified Price Jones technique.
The measurement of the mean diameter of the red blood cells is still one of the most important observations that can be made. Unfortunately the most accurate method of measurement by the technique introduced by Price-Jones is tedious and time-consuming. To trace the outlines of 500 cells, and then to measure the largest and smallest diameter of each, takes at least four hours. It also requires ...
متن کاملSimplified lysed-blood culture technique.
A blood culture system was developed in which a lysing agent (either Tween 20, one of several other polyoxyethylene adducts, digitonin, or Triton X-100) is added to the blood culture medium. Of 33 Triton compounds, 9 lysed human blood, as did 7 of 21 polyoxyethylene compounds and digitonin, all at a concentration of 0.05%. Under the specific test conditions, three of the hemolytic polyoxyethyle...
متن کاملDirect peroral cholangioscopy using an ultrathin endoscope: making technique easier.
BACKGROUND Cholangioscopy is a useful tool for the study and treatment of biliary pathology. Ultrathin upper endoscopes allow direct peroral cholangioscopy (DPC) but have some drawbacks. OBJECTIVE The aim of the study was to evaluate the success rate of DPC with an ultrathin endoscope using a balloon catheter to reach the biliary confluence. MATERIAL AND METHODS Prospective observational st...
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ژورنال
عنوان ژورنال: BMJ
سال: 1939
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.4120.1223