ct role in the assessment of existence of breast cancerous cells

normal 0 false false false en-us x-none ar-sa aim: ct number (hu) and linear attenuation coefficient contain useful information which  can be determined during usual ct scanning for the prediction of breast cancerous cells existence based on hemoglobin concentration. methods: this study used breast phantom containing major and minor vessels with diameters of 10 and 5 mm, respectively. the major vessels are filled by water, fat, hemoglobin (hb) as a normal and 4× concentration of hemoglobin (4×hb) as a cancerous breast cells, then scanned by single slice ct (ge, hi speed) 120 kvp, 100 ma for the determination of linear attenuation coefficient (µl). results: the ct numbers were for water (-7 to +7 hu), hb (22±6 hu) and 4×hb (80±4 hu). the difference between hb and 4×hb was significant (p <0.000). minimum µl was 0.1190±0.00680 cm-1 for fat and maximum was 0.1449±0.00794 cm-1 for 4×hb.  conclusion: the study of ct number and linear attenuation coefficient of different concentration of hb provides a possibility for early predicting of breast cancerous cells existence (4×hb).