1.) Rapid Processing – processing ca now be a s rapid as 30 s and useful in angiography, special procedures, surgery, and emergency rooms, where time is most critical.
– The chemical are more concentrated and developer and fixer temperature are higher.
2.) Extended Processing – is particularly useful in mammography and takes as long as 3 min. and improvements in contrast and patient dose occur only with single-emulsion film and not recommended for double emulsion films because the improvement in contrast or dose is insignificant with such films
Two Principal Advantages: greater image contrast and lower patient dose. Contrast is increased by approximately 15%. Image receptor sensitivity is increased by at least 30% and patient radiation dose is reduced y at least 30%.
3.) Daylight – the radiologic technologist needs only position a cassette with an exposed film into the appropriate slot of the daylight system.
- can accommodate up to 1,000 sheets of radiographic film of various sizes.
4.) Dry Processing – refers to the development of images without the use of wet chemistry.
Advantages:
• Elimination of handling
• Maintenance and disposal of chemical
• No darkroom required (space saved)
• No plumbing required
• Less environment impact
• Reduced capital cost
• Reduced operating cost
• Higher throughput
Two Technologies: Photothermography (PTG) and Thermography (TG).
- The basic difference between the two is in the manner in which the latent image is recorded and the visible image processed onto the film media.
