Objective To evaluate correlations between CT features and clinical activity index of Crohn’s disease(CD).Methods The CTE datasets from 37 patients with moderate active,severe active and remission stages CD were retrospectively analyzed.To ob-serve imaging features of intestinal wall,parenteral and complications.And analyze whether there was an association between imaging findings and clinical activity.Results A total of 147 bowel segments in 37 cases were involved.Wall thickening (intestinal wall≥4 mm)were observed in 121 segments.An average thickness was (12.1±3.2)mm.There are 42 bowel segments of trilaminar mural stratifica-tion,71 of the double-layed stratification and 34 of non-stratification.Enlarged mesenteric lymph nodes were observed in 20 patients. Comb sign was observed in 27 patients.Higher density of surrounding fat appeared in 22 cases.The other 37 cases inluced 4 cases with abdominal abscess,7 cases with fistula,1 6 cases with intestinal obstruction or stenosis and 1 7 cases of perianal disease.The in-testinal stratification,wall thickening,comb sign,mesenteric fat density increased,abdominal abscess,intestinal stenosis and obstruc-tion were closely associated with clinical activity.Conclusion CTE images could provide information about intestinal wall,parenteral changes and complications of Crohn’s disease,and effectively help identifying remission and active stages of Crohn’s disease.

BACKGROUND:CT-guided percutaneous intervention and rehabilitation techniques are both classic programs for diagnosis and treatment of lumbar disc herniation. Is the combination of CT-guided percutaneous intervention and rehabilitation techniques preferential y used for treatment of lumbar disc herniation?
OBJECTIVE:To evaluate the curative effect of CT-guided interventional injection combined with rehabilitation integration treatment for lumbar disc herniation and to analyze prognostic factors.
METHODS:Eighty-eight patients with lumbar disc herniation were subjected to CT-guided interventional injection combined with rehabilitation integration treatment from May 2010 to May 2013. Injection medicine consisted of betamethasone, tanshinone Ⅱ A sulfonate, neurotropin, normal saline and iohexol. Rehabilitation integration treatment included traction, manipulation, acupuncture, transcutaneous electrical nerve stimulation and thermal magnon. Macnab criteria and Chinese version of Oswestry low back pain disability questionnaire were used to assess the curative effects in comparison with the 112 patients receiving only CT-guided interventional injection that were reported previously. The prognostic factors, such as age, disease course time and herniation type of target segment were testified by correlation analysis.
RESULTS AND CONCLUSION:Total y 77 patients were completely fol owed up for 1 year. There were excellent outcomes in 64 cases, while favorable outcomes in 7 cases, fair outcomes in 5 case, poor outcome in 1 case, with a better outcome rate of 92%.There was a significantly decreased trend in Oswestry disability Index scores at 1, 6, 12 months during the fol ow-ups (P<0.01). No severe complications occurred in al the included patients. The curative effects were improved in term of better outcomes rate compared with the 112 patients receiving only CT-guided interventional injection, but there was no significant difference (P>0.05). The young group (≤ 45 years) had better outcomes than the older group (>45 years;P<0.01). In addition, disease course time and herniation type of target segment were not statistical y significant risk factors predicting clinical results (P>0.05). These findings indicate that CT-guided interventional injection combined with rehabilitation integration treatment could relieve lower back pain and radical leg pain effectively and decrease life disability level.