Digital Fluoro
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| show | much the same manner as conventional fluoroscopy but with the addition of a computer, multiple monitors, and a more complex operating console
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| How are DF images obtained? | show 🗑
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| Thin Film Transistor(TFT) | show 🗑
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| show | converts light fromt eh image intensifier to an electronic signal
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| Scintillator | show 🗑
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| show | smaller, lighter more easily manipulated. Reponse of an FPIR is more uniform over a period of time and doesn’t degrade with age
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| Disadvantages of flat Pannel image receptors | show 🗑
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| show | a semiconducting device . stores light photon charges and strikes a photosensitive surface. EXTREMELY FAST DISCHARGE TIME- eliminates image lag.
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| Flat Panel Detector | show 🗑
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| show | digitizes analog signal and digitizes it.
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| show | replacing cathode ray tube used in CRT. Easier to view/manipulate. Better images. Readily mounted in angiography and Operating rooms.
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| Computer Controlled Characteristics | show 🗑
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| show | ADC accepts analog signal and digitizes it.
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| show | pre contrast picture+Post contrast Picture – pre contrast stuff that did not change= subtracted image.
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| show | subtraction that results in successive subtraction imaest of contrast filled vessels. Original mask – each additional image.
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| Time Interval Difference (TID) mode | show 🗑
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| Energy Subtraction | show 🗑
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| Hybrid Subtraction | show 🗑
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| REDUCING EXPOSURE | show 🗑
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| ADC | show 🗑
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| Video Camera Tube | show 🗑
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| show | semiconducting device stores charge from light photons. Stores image in latent form. Video signal emitted raster pattern. MORE SENSITIVE THAN VIDEO TUBES. No image lag. Fast discharge time.
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| Video Monitor (TV Tube) | show 🗑
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| show | DYNAMIC RECORDING SYSTEM has a cinecamera positioned to incercept images produce by output screen of intensifying screen. Needs 90% of image intensity for proper image exposure.
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| show | Uses both 16 and 35mm formats. 30-60 fps. 60hz. Viewed at 16fps. HIGH PATIENT DOSE.
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| Video Recorders | show 🗑
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| Cassette-loaded spot films | show 🗑
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| Photospot camera | show 🗑
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| show | Video Camera Tube
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| show | Photospot camera
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| What size films are used in Cinefluorography? | show 🗑
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| show | 70 or 105 mm
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| How are images from digital fluoroscopy obtained? | show 🗑
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| show | 1.smaller, lighter and more easily manipulated than image intensifiers. Response more uniform and does not degrade with age
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| What are the disadvantages of the FPIR? | show 🗑
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| What is the type of video acquisition of “video analog to digital”(ADC)? | show 🗑
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| show | a semiconductor device capable of storing a charge from light photons and striking a photosensitive surface. Can store freed electrons. Extremely fast discharge time.
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| What are the advantages of digital fluoroscopy techniques? | show 🗑
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Created by:
bcmoody