The purpose of this study was to survey technique and radiation absorbed dose in CT examinations of adult in Sudan and to compare the results with the reference dose levels. Questionnaire forms were completed in nine hospitals and a sample of 445 CT examinations in patients. Information on patient, procedure, scanner, and technique for common CT examinations were collected. For each facility, the radiation absorbed dose was measured on CT dose phantom measuring 16cm (head) and 32cm (body) in diameter and was used to calculate the normalized CT air kerma index. Volume CT air kerma index (C VOL ), CT air kerma-length product (P KL,CT ) values were calculated using the measured normalized CT air kerma index and questionnaire information. The effective dose, E estimates was determined by using P KL,CT measurements and appropriate normalized coefficients. Assuming the sample to offer a fair representative picture of CT practice patterns in Sudan, the mean C VOL and P KL,CT values were comparable or below the reference doses: 65mGy and 758mGycm, respectively at head CT; 11.5mGy and 327mGycm, respectively at chest CT; 11.6mGy and 437mGycm, respectively at abdominal CT; and 11.0mGy and 264mGycm, respectively at pelvis CT. Estimated effective doses were 1.6, 4.6, 6.6 and 4.0mSv, respectively. The study offered a first national dose survey and provided a mean for quality control and optimization of CT practice within the country.