The use of high-speed film/screen combinations to improve diagnostic image quality.
Increased film speed, when used with the same intensifying screens, results in an increase in quantum "noise." Nevertheless, this increased noise is not the primary degrading factor of diagnostic quality during arteriography and cross-table myelography. The authors show that the use of high-speed film/screen combinations decreases the threshold diameter for blood vessel detectability on arteriograms. Also, these combinations can be used to increase the contrast between opacified spinal fluid and surrounding bone during cross-table myelography.
D000792:Angiography / Q000379:methods*; D006801:Humans; D009192:Myelography / Q000379:methods*; D011856:Radiographic Image Enhancement; D014962:X-Ray Film