Objective To analyse the characteristics of orbital benign and malignant masses on diffusion weighted imaging in combination with conventional MR imaging and evaluate the diagnostic value of apparent diffusion coefficient in distinguishing benign and malignant orbital lesions.Methods Seventy- seven cases with orbital masses,including fifty-five benign lesions and twenty-two malignant tumors,who underwent conventional MRI and diffusion imaging scanning were studied with use of a 1.5 T magnetic resonance system.Quantitative ADC measurements of masses(ADC_M)and of the white matter of eontralateral temporal lobe(ADC_W)were made with two different b-values of 0 and 1000 s/mm~2.The ADC ratio(ADCR)of the lesion to the control was calculated.The receiver operating characteristic curves(ROC) were constructed using various cut points of ADC_M and ADCR for different parameters to differentiate between benign and malignant masses.The area under the ROC curve for each parameter was also calculated. Results All cases were proved by histopathology.The mean ADC_M and ADCR of benign orbital masses were(1.56?0.75)?10~(-3)mm~2/s and 1.85?0.91,respectively.The mean ADC_M and ADCR of malignant orbital masses were(1.09?0.42)?10~(-3)mm~2/s and 1.28?0.53,respectively.There were significant difference both between ADC_M and ADCR of benign and malignant masses(t=2.803,2.735,P

OBJECTIVETo investigate an effective method to facilitate the physical and mental recovery of drug abusers in detoxification restoration period.

METHODSIntegrated interventions were adopted to observe the changes in the physical and mental conditions of female drug abusers who had withdrawn drugs.

RESULTSComparing behavioral changes between the two groups before and after intervention, we found that changes of score in the intervention group were all higher than those in the control group in terms of their physical symptoms or state of anxiety.

CONCLUSIONIt is necessary to help drug abusers understand the harm of drug-abuse, build up self-confidence and improve EQ through interventions. It will be beneficial for the drug addicts to refrain from drug-taking and regain a normal life. Our study has proved that positive results can only be obtained from integrated intervention projects.

Adult ; Anxiety ; Counseling ; Female ; Humans ; Self Concept ; Substance Abuse Treatment Centers ; Substance-Related Disorders ; psychology ; therapy