1, CRT is a use of cathode ray tube (Cathode Ray Tube) display, there are five main components: electron gun (Electron Gun), deflection coil (Deflection coils), shade (Shadow mask), phosphor layer (Phosphor) and glass shell. Phosphor) and glass shell. It used to be one of the most widely used displays, CRT flat panel displays have a large viewing angle, no bad dots, high color reproduction, chromaticity, uniformity, adjustable multi-resolution mode, response time is extremely short and other advantages of LCD monitors are difficult to surpass, and the previous CRT monitors prices are much cheaper than LCD monitors.
2, CRT including crt and CRT-9 and so on.
CRT-D (anti-failure pacemaker and buried defibrillator) has both anti-failure and defibrillation functions, and is an effective means of treating malignant arrhythmia. After recognizing malignant arrhythmia, ICD (buried automatic cardioverter-defibrillator) can issue rapid pacing pulses to inhibit arrhythmia at an overdrive speed, and the ICD is more effective than drugs at preventing malignant arrhythmia and reducing the rate of sudden death.
3, CRT-D advantages:
European CRT investigation of a year-long observational study found that cardiac resynchronization defibrillator (CRT - D) is superior to cardiac resynchronization pacing alone (CRT - P), but the study included patients different from previous randomized trials. The findings showed that poorer New York Heart Association (NYHA) cardiac function classification, atrial fibrillation, and ischemic etiology were both associated with poorer survival; women generally had a better prognosis than men, and survival and symptom control were better in CRT-D patients than in patients in the CRT-P treatment group.