Accurate measurement of vessel diameters on retinal images plays an important part in diagnosing cardiovascular diseases. In this study, a method of vessel diameter measurement has been developed incorporating with a tracking technique. Twin Gaussian functions are introduced to model the distribution of grey level profile over a vessel cross section. The tracking technique is utilised to study ...

licorice, glycyrrhiza glabra (fabaceae), is one of the herbal medicines. glycyrrhizin is the importance content through compounds exiting in licorice, which is 50 times sweeter than sucrose. glycyrrhizin used as the primary matter in pharmacy and used to remedy of many diseases, and also, used in tobacco, confectionary and beverage industries. since glycyrrhizin in the phases of growth received...

The use of three-dimensional (3D) data in the industrial measurement field is becoming increasingly popular because of the rapid development of laser scanning techniques based on the time-of-flight principle. However, the accuracy and uncertainty of these types of measurement methods are seldom investigated. In this study, a mathematical uncertainty evaluation model for the diameter measurement...

to evaluate the prognostic significance of clinicopathological measurement in the diagnosis of acute myocardial infarction (mi) in sheep, acute mi was induced by ligation of left anterior descending coronary artery (lad). for this purpose, twenty four healthy sheep were divided into the sham-operated or control group (group i, thoracotomy without mi) and the experimental group (group ii, with m...

Accurate measurement of stem diameter is essential to forest inventory. As a millimeter-level measuring tool, terrestrial laser scanning (TLS) has not yet reached millimeter-level accuracy in stem diameter measurements. The objective of this study is to develop an accurate method for deriving the stem diameter from TLS data. The methodology of stem diameter measurement by diameter tape was adop...

Minimizing user cognitive load is suggested as an integral part of human-centered design, where a more intuitive, easy to learn and adaptive interface is desired. In this context, it is difficult to develop optimal strategies to improve the design without first knowing how user cognitive load fluctuates during interaction. In this study, we investigate how cognitive load measurement is affected...

AIM recent guidelines recommend that all cirrhotic patients without previous variceal hemorrhage undergo endoscopic screening to detect esophageal varices. The aim of this study is to evaluate clinical, laboratory and ultrasound parameters to detect esophageal varices. METHODS this is a cross sectional study. Fourty seven consecutive cirrhotic patients without history of variceal hemorrhage u...

OBJECTIVE To determine the correlation between central venous pressure (CVP) measured by conventional central venous access and ultrasonographic measurement of internal jugular vein (IJV) height and inferior vena cava (IVC) diameter. METHODS A prospective, cross-sectional, convenience sampling observational study. RESULTS 25 patients from the Emergency Department (ED) Universiti Kebangsaan ...

conclusions noninvasive assessment of the patient hydration condition using the ultrasound is a simple and practicable measure in emergency. with regard to the considerations, it is possible to estimate cvp via diameter measurement and cross-section of the central veins. results twenty patients with the mean age of 60.3 were studied. the main reason for cardiac catheterization was shock. there ...