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1 General data 300 subjects underwent enhanced CT examination consisted of 182 males and 118 females.143 underwent head enhanced CT,93 underwent abdomen enhanced CT,46 thorax enhanced CT and 18 enhanced CT of other parts.Patients and their family were surveyed using questionnaire.Investigator fill the table if patients were illiterate.Percent constitution was used to analyze data. 2 Result Deficiency in understanding enhanced CT examination:261 patients(87％ ) hardly hear or want to receive the enhanced CT examination.Misunderstanding and distrust:112 subjects(37.3％ ) assumed effect of horizontal scanning of CT was poor and examiners ability or responsibility were unsatisfying.13 subjects underwent CT in other hospital were advised to receive enhanced CT.But they rejected enhanced CT due to risk of enhanced drugs and came to our hospital for consultation.265(88.3％ ) subjects showed anxiety and horror due to its risk.Among these patients,16 chosed other examinations such as MRI.14 subjects underwent enhanced CT showed stronger psychological tolerance when they know risk of reexamination of enhanced CT compared with those first received the examination.4 subjects gave up the enhanced CT due to poor economical condition. 3 Discussion and countermeasure Psychological response characteristics:Psychological response is characterized by anxiety,horror,depression,unhappiness,agitation,helplessness.The following facts were the causes:patients were eager to understand conditions and examination results,worried impact of condition himself and family； They did not understand examination procedure and approach； They felt helpless due to disease.Economic conditon was poor； Inhospitality shown by family and unit to patients. Countermeasure: (1)To establish good relationship between doctors and patients.Amiable attitude could relive patients anxiety and make patients actively cooperate with examiners.Examiners should evaluate pateints response intensity to enhanced eaxmination.To understand their mind changes through communication with pateints and family.Patients should be permitted to express their feelings and receive examiners instrucions and explains.Physician should care and help patients psychosomatically.Not noly social and physiological help but psychological help should also be given. (2)To introduce necessity and knowledge associated with enhanced CT examination,provide information to relieve anxiety and distrusting feeling and establish safety feeling.(3)5 mg fumeisong was injected to enhance patients confidence 20 minutes before enhanced CT.(4) Normal response such as fever and nausea to patients should be introduced to make patients have sufficient psychological preparation.If problems occurred,active contermeasures should be employed.If nausea occured,patients should endure until examination is end.Anti-allergy measures should be employed after examination.(5)To tell family care patients and observe abnormal responses during examination process.These measures can enhance patients safety feeling.At the same time,to instuct patients to relax and ask some unexcessary problems which can relieve anxiety.These measures will make patients fell be cared and helped.