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I. K. Brown, F. Kirk, A. Seaton, A scanner stand for pulmonary function studies, British Journal of Radiology, Volume 42, Issue 499, 1 July 1969, Pages 545–548, https://doi.org/10.1259/0007-1285-42-499-545
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The use of poorly soluble radioactive gases such as xenon 133 and nitrogen 13 in the measurement of regional ventilation and pulmonary blood flow is now well established. Two methods of detecting the radioactivity are commonly used.
In one, six pairs of scintillation counters are arranged over the front and back of the chest wall in order to record the activity from the upper, middle and lower zones of each lung, (Ball, Stewart, Newsham and Bates, 1962). The alternative is to use two pairs of counters and to move these over the chest wall (Dollery and Gilliam, 1963).
Equipment is available for the monitoring, recording and display of the radioactivity, but to date no stand has been readily available either to carry fixed counters or to move counters as described above.
A stand is described which is suitable for moving lung scans and can be simply adapted for multicounter static studies.
The basic specification was decided as follows.
(a) The stand to be open sided.
(b) The open-sided arms to be adjustable relative to each other and capable of carrying two pairs of scintillation counters in opposed sets.
(c) The arms to be interchangeable with arms having multi-counter arrangements suitable for static studies.
(d) The counters to be adjustable to accommodate varying chest sizes.
(e) The axis of scan to be variable. Horizontal, vertical or intermediate positions to be available.
(f) The distance traversed under power to be variable (20–30 cm).
