On Systematization of Engineering Tests of X-Ray Diagnostic Equipment under Conditions of Treatment-and-Prophylaxis Institutions

Abstract

According to medical regulations, a utility certificate should be compiled for X ray rooms [3]. The protocols of technical tests (PTT) and safety test are the main docu ments for compiling such a certificate [3].The PTT is the aggregate of data about sample, serv ice organization, normative documents, monitoring equipment, and basic utility characteristics of roentgeno diagnostic apparatuses (RDA).The main utility characteristics are anode voltage, anode current, exposure time, electrical charge, linearity of dose dependence on mAsec, radiation yield, spectral composition of X ray radiation, etc. These components of PTT are represented as individual chapters of the cer tificate.1. General chapter. 2. Equipment correspondence to certificate. 3. Electrical safety of RDA. 4. Radiation safe ty. 5. Correspondence of mechanical parameters to tech nical documentation (TD) and standards. 6. Correspon dence of electrical and radiation characteristics of X ray power source to TD and standards. 7. Correspondence of X ray images on different carriers: X ray film, screen, image intensifier, CCD screens, etc. to TD and standards. 8. Correspondence of photolaboratory to TD and stan dards. 9. Correspondence of RDA parameters for tomog raphy, angiography, etc. to TD and standards. 10. Conclusion, remarks, and comments to RDA use.RDA tests include testing for working parameters and compilation of test protocols.Automation of routine testing procedures using spe cial software [1] for RDA monitoring allows test results to be obtained online. The following curves can be plotted: D (mGy) = f (mAsec), U a meas = f (U a set ), etc. The protocols are stored in a database.The results of testing of the TFX 15 in Moscow Municipal Hospital No. 68 are given in Tables 1 3. Table 1 contains data of measurement of basic electrical Fig. 2. Dependence of radiation yield on anode voltage with regression curve. This curve shows a linear increase in the radia tion yield upon increasing the anode voltage. The ordinate is the radiation yield.

A hardware-software system for monitoring the performance of X-ray diagnostic equipment

“…The TEP protocol is an aggregate of data about treat ment and prophylaxis institution (TPI), X ray diagnos tic apparatus (XDA), organization served, normative doc uments, control testing equipment, parameters of XDA, and characteristics of object tested [1,2].…”

“…The block diagram of the algorithm of the software for the TEP hardware-software system for monitoring 1 Yes the performance of X ray diagnostic equipment described in this work is shown in Fig. 1.…”