WebCT ratios are expressed as a ratio of the rated primary current to the rated secondary current. For example, a 300:5 CT will produce 5 amps of secondary current when 300 … WebThe ratio of the diameter of the pulmonary artery (PA) to the diameter of the aorta (PA:A ratio) on computed tomography (CT) scan can identify patients at an increased risk of COPD exacerbation and hospitalization. 19 It has also been shown to outperform echocardiogram at predicting PH in patients with severe COPD. 20 There are several ...
Appearance of Abnormal Cardiothoracic Ratio of Fetuses with
Webmust consider the increased volt-time area of the asymmetrical fault when selecting a CT. Fig. 2. Burden Voltage for Asymmetrical Fault Current ... be used to calculate the maximum fault current for a given CT ratio. Table I lists the maximum fault currents versus X/R ratio for which saturation is avoided using 3000:5, 2000:5, or 1500:5 CTs. WebJan 1, 2014 · The cardiothoracic ratio (CT ratio) is the widest diameter of the heart in comparison to the widest internal diameter of the rib cage, and any ratio >50 % is considered an increased CT ratio. It is rewarding to identify an increase in the cardiac size and chambers (left atrium, right atrium, and left ventricle or right ventricle solely or in ... crypto tax reporting form
18F-FDG PET/CT代谢参数在局灶性自身免疫性胰腺炎和胰腺癌鉴别 …
Websignal to noise ratio. This test measures the system’s ability to resolve high contrast objects of increasingly smaller sizes (increasing spatial frequencies). ... multidetector CT scanners do). o But, may increase slice sensitivity profile, creating larger effective slice thickness and reducing z-axis resolution. WebThe CT Accuracy Class is listed on the label or the nameplate of the CT and is comprised of three parts: rated ratio accuracy rating, class rating, and maximum burden (Figure 2). Rated Ratio Accuracy Rating is a number which is the rated ratio expressed as a percent. For example, a CT with an accuracy class of 0.3 is certified by WebBy applying parallel CT, it is possible to increase CT accuracy voltage from 50V to 100V without reducing relay input current. Fig. 1. Parallel CT connection for small size load feeder 4.2 High Ratio Standard CT for Digital Relays The higher CT ratio the higher saturation voltage as it is shown in Figure 2. Since high CT ratio CTs are ... crypto tax review