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[Quality assurance through constancy control for x-ray film processors (author's transl)]. 1982

R Weberling

A control method to check the reproduction of x-Ray film processors and necessary instruments is presented. The application of a light sensitometer allows the production of test films daily, independent of x-Ray exposures, x-ray film cassettes and x-ray intensifying screens. The optical densities on the test films will be read by means of a densitometer and the results are plotted on a special control chart. A limitation through optical densities of +/- 0,15 for Speed Index and +/- 0,20 for Contrast Index determines the tolerance variation for x-ray film processors. Targets of this control method are uniform image quality, dose reduction and saving of cost.

UI MeSH Term Description Entries
D008953 Models, Anatomic Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study. Anatomic Models,Models, Surgical,Moulages,Models, Anatomical,Anatomic Model,Anatomical Model,Anatomical Models,Model, Anatomic,Model, Anatomical,Model, Surgical,Moulage,Surgical Model,Surgical Models
D011786 Quality Control A system for verifying and maintaining a desired level of quality in a product or process by careful planning, use of proper equipment, continued inspection, and corrective action as required. (Random House Unabridged Dictionary, 2d ed) Control, Quality,Controls, Quality,Quality Controls
D003720 Densitometry The measurement of the density of a material by measuring the amount of light or radiation passing through (or absorbed by) the material. Densitometries
D013679 Technology, Radiologic The application of scientific knowledge or technology to the field of radiology. The applications center mostly around x-ray or radioisotopes for diagnostic and therapeutic purposes but the technological applications of any radiation or radiologic procedure is within the scope of radiologic technology. Radiologic Technology,Technology, Radiological,Radiological Technology

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