[Development of a provisional information-retrieval descriptor language for "Roentgenology and Medical Radiology" for use in the Medinform system].

A problem information retrieval thesaurus consisting of descriptor and nondescriptor articles in alphabetic order was developed. It was conformed to and conjugated with the thesaurus in the field. Examples of descriptor and nondescriptor articles of the revised problem thesaurus were cited. The entire medical roentgenoradiology in the thesaurus in the field was represented by 20 descriptors. The problem thesaurus comprised approximately 1000 descriptors. The authors emphasized the role of the information retrieval thesaurus in which descriptors were renewed from an array of quasidescriptors every 3-5 yrs. The problem thesaurus is an element of the information retrieval language of the Medinform system intended for information support of specialists in roentgenoradiology.