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Rad107 Week 9 Assign
| Term | Definition |
|---|---|
| Quantum Mottle | noise caused by insufficient x-ray photons reaching the image receptor |
| ROC Curves | evaluate diagnostic accuracy |
| Signal | useful image information |
| Noise | unwanted random information that reduces image quality |
| Rods | help vision in low light |
| Cones | responsible for color and fine detail |
| RIS | Radiology Information System |
| EMR | Electronic Medical Record |
| DICOM | the standard communication format used for medical imaging systems |
| PACS | Picture Archiving and Communication System |
| Compression | Lossless compression reduces file size without losing image data |
| Computed Radiography ( CR) | uses imaging plates that are processed through a reader |
| Digital Radiography (DR) | Uses flat.-panel detectors and produces images almost instantly |
| Compton Scatter | occurs when the photon changes direction after interacting with matter |
| Radiographic Contrast | the difference between black and white areas on the image |