We aimed to evaluate the effect of elective percutaneous coronary revascularization (PCI) on CFC using serial stress transthoracic Doppler echocardiography (STDE). Overall, 148 stable patients underwent STDE of the left anterior descending arteries (LAD), before and after elective PCI. Coronary flow ...
the moving condition of contrast agent in the pyloric canal was observed clearly. When the liquid passed from the gastric antrum to the duodenum, color Doppler artifacts showed a mixed stack effect which was
BENDING OF A WAVE Beats A beat occurs when sound waves of two different (but very much alike) frequencies are played next to each other. The result is constructive and destructive interference at regular intervals. Sound waves move out like this: But when they move, the front of the wave ...
Chemical field-effect transistor; Chromatograph; Colorimeter; Compass; Contact image sensor; Current sensor; Depth gauge; DNA microarray; Electrocardiograph (ECG or EKG); Electrochemical gas sensor; Electrolyte-insulator-semiconductor sensor; Electromyograph (EMG); Electronic nose; Electro-optical sensor;...
This waveform distribution is inverted when patients are symptomatic according to the Fontaine scale, with a majority of waveforms being categorised as abnormal (p < 0.05, apart for grade III patients with the Spronk et al. classification) (Figure 3). 4. Discussion The results from the present...
Laser Doppler Vibrometer (LDV) measures target vibration using frequency change in the transmitted laser signal due to the Doppler effect. LDV as a non-contact sensor has been used for bridge displacement measurement [50,51]. While this device still needs to be placed on a rigid surface near ...