Abstract:
:The CT scanner makes three-dimensional anatomical information available for treatment planning, the calculational algorithm being the limiting factor in dose calculations. A method has been developed, called the "effective tissue-air ratio method," that uses all the information but reduces it to manageable proportions. The accuracy is satisfactory for a wide range of photon beam energies and clinical applications. It has been implemented in such a way that the CT scan can be used directly without the intermediate step of manually obtaining structures from either a viewing screen or a hard copy of the CT image.
journal_name
Radiologyjournal_title
Radiologyauthors
Sontag MR,Cunningham JRdoi
10.1148/129.3.787subject
Has Abstractpub_date
1978-12-01 00:00:00pages
787-94issue
3eissn
0033-8419issn
1527-1315journal_volume
129pub_type
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