Title :
Evaluation of breast composition for radiation absorbed dose in mammography
Author :
Goto, Sachiko ; Azuma, Yoshiharu ; Maruyam, Toshiiori ; Takeda, Yoshihiro ; Azuma, Masami
Author_Institution :
Fac. of Health Sci., Okayama Univ. Med. Sch., Japan
Abstract :
We devised the method of evaluating breast composition from clinical mammograms by using digital image processing techniques and the simulating breast tissue phantom. The computer-assisted system was built, which contributed to evaluating average radiation absorbed dose to glandular breast tissue (average glandular dose). This system consists of three sections and requires a look-up table to be prepared for each section. The three look-up tables concern average glandular dose per unit entrance skin exposure, skin exposure in air and breast composition vs. pixel value. This system was actually applied to the clinical mammograms of about 50 examples, and the results were analyzed
Keywords :
biological tissues; diagnostic radiography; dosimetry; mammography; medical image processing; table lookup; average dose; breast composition evaluation; breast dosimetry; breast tissue phantom; computer-assisted system; digital image processing; glandular breast tissue; look-up table; mammography; radiation absorbed dose; skin exposure in air; unit entrance skin exposure; Biological materials; Breast tissue; Geometry; Glands; Imaging phantoms; Mammography; Radiation dosage; Skin; Table lookup; Voltage;
Conference_Titel :
Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6465-1
DOI :
10.1109/IEMBS.2000.897947
