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The State-of-the-Art Echocardiography and Its Viewpoint Classifications
Published in Ayman El-Baz, Jasjit S. Suri, Cardiovascular Imaging and Image Analysis, 2018
Xiaohong W. Gao, Wei Li, Martin Loomes, Yu Qian, Qiang Lin, Liqin Huang, Lianyi Wang
Echocardiography is a typical application of ultrasound imaging and is the most widely used tool in clinical practice for the evaluation of cardiac function due to its nature of being easy to operate, inexpensive, non-invasive, and offering in-vivo observation of the moving heart. In addition, this echo imaging tool can be of varying sizes, from a desktop computer size to the size of a mobile phone, giving rise to its much wider applications, including in emergency and screening programs. As a mature medical technology, at present, one in four diagnostic imaging studies has been carried out applying ultrasonic imaging in the world, and the trend continues to increase.
Impact of fire protective equipment and the self-contained breathing apparatus on peak exercise in males and females
Published in Ergonomics, 2023
In the current investigation there was a significant decrease in O2pulse for both the males (15%) and females (12%). The decreased value for the males was similar to a previous investigation which saw an 18% decrease in O2pulse (Dreger, Jones, and Petersen 2006). When comparing the SCBA to a control condition, Eves, Petersen, and Jones (2005) showed a decrease of 12% in O2pulse for male participants. Intrathoracic pressure has been shown to impact cardiac function, specifically the left ventricle (Mayne et al. 2009; Nelson et al. 2009). Nelson et al. (2009) found that end-diastolic cavity area and stroke area were reduced, while peak expiratory oesophageal pressure increased due to the SCBA. Mayne et al. (2009) found that a reduction in end-diastolic cavity area was a function of exercise intensity and that it required intensities greater than 60% of O2peak to see a difference and intensities greater than 80% to see differences in stroke area.
IoT-Based Remote Diagnosis and Therapeutic Telemedicine Governing System
Published in IETE Journal of Research, 2022
Valeti Sai Deepak, Kolluru Sai Ganapathi Sastrulu, Koppineni Teja Naidu, Vetrivelan Pandu, K. B. Ajeyprasaath
Determine how many beats are there in 15 s by pulse. In order to determine beats per minute, multiply this number by four. Remember that a variety of variables, including age, can affect heart rate, activity levels, and fitness. Adults’ normal resting heart rates fall between 60 and 100 bpm. In general, a lower resting heart rate indicates more efficient cardiac function and better cardiovascular fitness. For instance, a fit athlete might have a resting heart rate that is closer to 40 bpm. Here, in Figure 7, in the initial dates like 0–5, the pulse increases from 60 to 160; 60 is a normal pulse but 160 is higher than normal; sometimes, it happens to the patient because of unpredictable anxiety which means the patient feels anxiety within a fraction of seconds. It is dangerous to the heart and may lead to cardiovascular disease. But in the month ending it is mostly normal and the pulse range is between approximately 60 and 140.
Encoder Modified U-Net and Feature Pyramid Network for Multi-class Segmentation of Cardiac Magnetic Resonance Images
Published in IETE Technical Review, 2022
Taresh Sarvesh Sharan, Sumit Tripathi, Shiru Sharma, Neeraj Sharma
Cardiovascular diseases (CVDs) are the leading cause of deathsThese authors contributed equally to this work across the globe taking approx. 17.9 million lives every year which is 31% of global deaths in 2016 according to the World Health Organization. 85% of these deaths are due to heart attacks or strokes. In India, the number of cardiovascular disease patients increased considerably during the last decade [1,2]. In 2015, the number of patients who died due to CVDs is 25% of total deaths. The prevalence of CVDs was estimated to be 54.5 million in 2016. Recognition of CVDs is the first and most important step in the treatment and management of the patients by the healthcare system [3]. Cardiac function analysis can play an important role in the determination of abnormality in the heart such as but not limited to valve abnormality and cardiac tumor as it provides detailed structural information of the heart [4,5]. Also, several parameters for the heart can be calculated (Ejection fraction, stroke volumes) which further assist in the diagnosis of heart diseases like Hypertrophic cardiomyopathy. Many instruments based on imaging modality have been developed for monitoring the condition of the heart like Cardiac Magnetic resonance imaging (CMRI), Echocardiography, Ultrasound, and Computed tomography. Cardiac Magnetic resonance imaging (CMRI) is considered as a state-of-the-art method for Cardiac function analysis [6].