## Abstract  
This research aimed to investigate the relationship and the correlation between abdomen fat accumulation and the level of diffused fat in the human liver using computerized methods. Computed tomography data sets of 125 subjects were employed in this study. This investigation was implemented through three phases. For each subject, the quantity of abdomen fat was measured, and then the liver was segmented and analyzed to evaluate the fat content. Finally, the collected results were utilized to evaluate the correlation. In addition, the liver intensities were measured to evaluate the level of the diffused fat in the liver. Experimental results show that there was a medium negative correlation between the visceral fat to the abdomen size ratio and the mean of the liver intensity values. The same correlation was found between the mean of the liver intensity values and the total abdomen fat to the abdomen size ratio. The ratios mentioned above were used to obtain relative measurements for the size contribution of fat (for each type) to the whole size of the abdominal area, due to the wide variety of sizes of subjects used in this research. This study supports the research community with objective measurements that reveal a direct proportional relationship between obesity and the level of diffused fat in the liver. The findings of this research provide evidence of a detrimental health effect of abdominal obesity (especially visceral fat) on liver fat content, which is associated with an increased risk of serious health problems, such as diabetes, high blood pressure, kidney disease, and developing heart problems. The research helps to identify a cause for fat accumulation in the liver, which can help in the process of preventing and treating fatty liver disease. s +
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abdomen fat using a clipper, does not provide a quantitative measurement of body fat. Yet, no study has derived an accurate objective measurement for the correlation between the actual quantity of abdomen fat and the level of diffused fat in the liver. Fat infiltration in the liver can occur in many different patterns. Diffuse fatty infiltration involving the entire liver is the most common pattern. According to [PERSON] et al. [6], the attenuation of the normal liver is slightly greater than the spleen in non-contrast-enhanced computed tomography (CT) images. Based on this observation, diffused fatty liver can be recognized if the attenuation of the liver is at least 10 HU less than that of the spleen, or if the liver attenuation is less than 40 HU. Other CT criteria have been advocated by [PERSON] et al. [7]. They measured the liver to spleen attenuation ratio and clarified a ratio of less than 1 as indicative of fatty liver. They quantified the liver fat using non-contrast-enhanced CT images. In contrast-enhanced CT images, comparing the attenuation values of the liver and spleen is not as reliable for fatty liver diagnosis, because the differences between the liver and spleen attenuations depend on the timing and the technique used, and also because there is an overlap between normal and abnormal liver attenuation value ranges [8,9]. [PERSON] et al. [7] stated that fatty liver can be diagnosed using contrast-enhanced CT images if the attenuation absolute value is less than 40 HU. CT scanning provides a useful non-invasive method for detecting and following patients with fatty liver, particularly when the liver biopsy is contraindicated [10]. According to [PERSON] et al. [11], measurement of attenuation of the liver using non-contrast-enhanced CT scans is best for the prediction of pathologic fat content in the human liver. Physicians and experts believe that overweight people are more likely to develop a fatty liver. [PERSON] and [PERSON] [12] presented an interesting study, where 24 patients diagnosed with non-alcoholic fatty liver were subjected to 3 months of a low-calorie diet. For each patient, CT examinations were performed before and after the 3 months of a low-calorie diet.