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Scanning Techniques and Image Processing
Published in Yongjie Jessica Zhang, Geometric Modeling and Mesh Generation from Scanned Images, 2018
Dynamic Lung Modeling and Tumor Tracking. According to the statistics [352], lung cancer is one of the leading causes of cancer death in the United States - about one in every three cancer deaths. Generally there are three kinds of treatment: radiation therapy, laser therapy and cryosurgery. Radiation therapy exposes cancer cells to high-energy X-rays and damages their DNA structures and genetic functions. In this way, these cancer cells lose the ability to continue growing or dividing. Laser therapy uses high-intensity light to increase the local temperature and kills the cancer cells. Cryotherapy decreases the local temperature to destroy abnormal or diseased tissue. Due to the organ motion during respiration, it is critical to track the tumor motion, which can help us decrease the treatment margin and minimize the normal tissue exposure. In this way, we can kill the cancer cells as much as possible while minimizing the damage to the surrounding healthy tissues. Therefore, dynamic lung modeling and tumor tracking are very critical for the treatment planning. Deformable image registration techniques are needed in tracking dose deposited in the target tumor volume over time.
3-min whole body cryotherapy/cryostimulation after training in the evening improves sleep quality in physically active men
Published in European Journal of Sport Science, 2019
Wafa Douzi, Olivier Dupuy, Maxence Tanneau, Geoffroy Boucard, Romain Bouzigon, Benoit Dugué
Cryotherapy/cryostimulation is commonly used for analgesic and anti-inflammatory purposes (Dupuy, Douzi, Theurot, Bosquet, & Dugué, 2018). The effects of cryostimulation in the decrease in body temperature could have an impact on sleep onset latency, as well as a decrease in skin temperature may have an analgesic effect and lower delayed onset of muscle soreness facilitating therefore a better quality of sleep. Cryo stimulus/stimuli may also have the power to readjust hormonal circadian rhythm and biological clock after a disturbance induced by high-intensity exercise close to bedtime. Nevertheless, the effect of cold exposure in the evening and quite near bedtime on sleep quality has not been investigated.