Foreign matter equipment metal penetration type stainless steel ore, thinks the work of radiation at close range, as a result, the quality of an x-ray computer decreased. Such effects may make treatment planning mistakes due to draw boundaries, cancer cells in error. This research study has created an algorithm reduces the temper of three kinds of metal K-mean, Multilevel-linear, and Multilevel-spline contain studies on x-ray images of the computer model, the pelvic and cervical cancer patients of 10 of the Tandem Flange level and image level. Ovoid and assessment the performance of the algorithms developed in the pelvic model image with a value of CT numbers and standard deviation values. Found that the algorithm K-mean has a value close to most standards both for the streak and Hyperdense Hypodense evaluation in patients with the image number and value. It found that the algorithm has good metal foreign body can be reduced in the area of the whole Flange and image streak Hypodense image arithmetic standard Ovoids CT is equal to 32 ± 8 and 33 ± 21 HU HU, respectively. After using three algorithms, found that the average number it does not differ from the standard values (p > 0.05) for evaluation to the average number and average value of Hyperdense position streak figures it has differences with the standard because the causative agent of such areas with a very high density effect.Not all foreign substances can be reduced. When considering the average, standard deviation, after all three algorithms, both of type Hypodense Hyperdense streak if they are found, and decrease when compared to the image before using an algorithm and a value that is close to what standard. For the qualitative assessment results in an x-ray computer patient by medical radiation treatment, found that the Multilevel-spline algorithm can decrease temper better metal K-mean algorithm and the Multilevel-linear (< p 0.05) reduction algorithm developed by metal foreign body type 3 can reduce metal foreign body penetration device, which caused mineral-type x-ray image, the computer thinks of stainless steel, it can reduce the error from the cancer cells in the scope, drawing an x-ray computer.
การแปล กรุณารอสักครู่..
