|SOME TECHNICAL PROBLEMS CONNECTED WITH EFFECTIVE
UTILISATION OF X-RAY EQUIPMENT IN NATIONAL TUBERCULOSIS PROGRAMME
|VA Menon-: NTI Newsletter 1970, 8, 88-93.
This paper highlights some of the Technical, Economical
and Operational problems encountered in 1955 60 when the National
Tuberculosis Programme was being evolved wherein considerable importance
was laid on diagnosis of patients using mass miniature radiography.
Technological imperfections seen were: 1) High breakdown rates of
X-ray units 2) Though power supply was available, the quality
of powerline was such that X-ray could not work satisfactorily
in 75% of them. Moreover, running cost of X-ray unit when using
petrol generator was very high. This can be reduced by connecting
the unit to power supply. Reduced sensitivity and specificity of
the X-ray is another operational deficiency. The number of suspects
diagnosed was 7 times the actual number of cases and probably 60%
of cases were being missed also.
In order to solve these problems, the suggestions
given were 1) X-ray equipment capable of working from low capacity
powerlines without loss in standard of performance is desirable.
2) Flouroscopic image intensifiers using solid state panels
which are easy to operate and maintain can probably improve the
reliability of flouroscopic examinations without increasing the
radiation dose. 3) Electronic contrast enhancement of films
are possible and this could improve the diagnostic reliability.
Research is needed to improve contrast perceptibility without increase
|KEY WORDS: X-RAY EQUIPMENT, UTILIZATION, CONTROL