Phantom for measuring UH correlation – electron density for radiotherapy treatment planning
The Pro-RT ED phantom allows for consideration of tissue heterogeneity when planning radiotherapy treatments. It enables the precise correlation between CT scan data and the electron density of different tissues. The phantom consists of two interlocking discs representing the head and abdomen. Nine inserts with equivalent electron density for different tissues can be positioned at 17 different locations within the scan field. An insert can be filled with any liquid. Optional distance marker inserts allow for a rapid assessment of the scanner's distance measurement accuracy. List of
electron density inserts (Ø 30 mm x 50 mm): Lung (inspiration), Lung (expiration), Breast (50% glandular / 50% adipose tissue), Fixed trabecular bone 200, Liver, Muscle, Adipose tissue, Fixed dense bone 800, Fixed dense bone 1250, Water-filled insert. Optional inserts are available in titanium, steel, or aluminum.
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