| Objective Analysis of different types of ascites CT featuresMethods Collected in our hospital in March 2010 to August 2014 by CT examination and after surgery and pathologically confirmed cases of a total of 115 cases of ascites. 30 cases of tuberculous ascites, 15 cases were male, 15 cases were female, aged 10 to 79, the average age of 35.3 years. Pure hepatocirrhosis with ascites 30 cases, 19 cases were male, 11 cases were women, age 38 to 68 years, with an average age of 54.3 years. Cancerous ascites 37 cases, 17 cases were male, 20 cases were female, aged 30 ~ 84, the average age of 61.2 years, Including ovarian cancer 10 cases, 14 cases of gastric cancer, intestinal cancer 7 cases, 2 cases of lung cancer, pancreatic cancer 4 cases. Other causes of ascites in 18 cases, 9 males and 9 females, aged 22 to 91 years, mean age 50.3 years old. Including 8 cases of acute pancreatitis, 4 cases of cholecystitis, 2 cases of liver abscess, 1 cases of appendiceal abscess, hepatic contusion in 1 cases, renal contusion in 1 cases, splenic contusion in 1 cases. All patients had no abdominal surgery, peritoneal dialysis and other medical history can lead to peritoneal adhesions. The following cases were observed for signs of :( 1) cavity and \ or substantial organ typically benign and malignant signs;( 2) the peritoneum, omentum change, mesenteric lymph nodes, etc;( 3) the distribution of ascites, CT values, and semi-quantitative assessment of abdominal fluid; observed odds over various signs appear in benign and malignant ascites.Results The typical benign lesions and malignant lesions has the value in diagnosis of ascites nature. Benign ascites group of omental thickening adhesions on the 18 patients, and 20 cases of malignant ascites group,the difference between the two have no statistical significance(X2=0.239,P=0.625);Benign ascites group of mesenteric small dot dirt sample change 19 cases, and 18 cases of malignant ascites group, the difference between the two have no statistical significance(X2=1.445,P=0.229);Benign ascites group peritoneal irregular wall or nodular thickening in 2 cases, and 20 cases of malignant ascites group, there are differences between the two statistically significant(X2=16.869,P=0.000);Benign ascites group uniform wall peritoneal thickening of 21 cases, 3 cases with malignant ascites group, there are differences between the two statistically significant(X2=27.605,P=0.000);Benign ascites group lymph nodes in 15 cases, and 17 cases of malignant ascites,the difference between the two have no statistical significance(X2=0.109,P=0.741). Abdominal different distribution of benign and malignant ascites, no statistically significant difference(X2 = 3.740 P> 0.05), benign and malignant ascites in the distribution of hepatic clearance tendentious.Ascites CT values: malignant ascites group : CT values between 2.5HU ~ 28.4HU, the average CT value 12.2HU, 7 cases of CT values greater than 15HU; tuberculous ascites : CT values between 6.5HU ~ 45.0 HU, average CT value 18.5HU, 15 cases of CT values greater than 15HU; pure liver cirrhosis group : CT values between 1.8HU ~ 15.0 HU, the average CT value 5.6HU, cirrhosis CT values were less than 15HU; ascites due to other causes : CT values between 8.5HU ~ 46.2 HU, the average CT value 19.4HU, 10 cases of CT values greater than 15 HU.Benign and malignant causes ascites volume, no statistically significant difference(X2 = 5.865, P > 0.05). Conclusion( 1) The changing nature of parietal peritoneum structure for the diagnosis of ascites has important reference value.(2)Ascites is usually multi gap distribution, but the most common peripheral hepatic clearance, distribution of benign and malignant ascites had no significant difference.(3)Ascites CT value and is closely related to the composition of ascites, CT value measurement in a certain extent can assist in the diagnosis of ascites. |
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