Computed & Digital Radiography PDF

UNDERSTANDING COMPUTED RADIOGRAPHY & DIGITAL RADIOGRAPHY  OBJECTIVES: Define the what is of Computed Radiography (CR) and Digital Radiography (DR). Identify the Importance of the modality in Radiology and to the human being. Discuss the Advantages and of the modalities Differentiate between the two...

UNDERSTANDING COMPUTED RADIOGRAPHY & DIGITAL RADIOGRAPHY  OBJECTIVES: Define the what is of Computed Radiography (CR) and Digital Radiography (DR). Identify the Importance of the modality in Radiology and to the human being. Discuss the Advantages and of the modalities Differentiate between the two modalities Explain the Pathology/Diseases where the modality can be used  COMPUTED RADIOGRAPHY (CR) Computed radiography (CR) cassettes use photo-stimulated luminescence screens to capture the X-ray image, instead of traditional X-ray film. Been around since 1980-81 Uses same radiographic equipment Uses an imaging plate Contains a photostimulator phosphor Need a cassette reader  BASIC PRINCIPLES OF COMPUTED RADIOGRAPHY (CR) LATENT IMAGE EXPOSURE SCANNING FORMATION LIGHT DIGITAL CONVERSION IMAGE CREATION  COMPONENTS OF A TYPICAL COMPUTED RADIOGRAPHY SYSTEM 1. IMAGING PLATE 2. SCANNER 3. READER 4. COMPUTER SYSTEM  Low initial investment ADVANTAGES AND Compatible with a wide range of DISADVANTAGES OF traditional systems COMPUTED RADIOGRAPHY Effective for smaller or low volume (CR) clinics Multiple sizes allow for greater flexibility Long time to view image Risk of overexposure High Maintenance IMPORTANCE OF CR AND DR IN RADIOLOGY AND TO THE HUMAN BEING:  IN RADIOLOGY: IN HUMAN BEING: This produce high quality image that Digital imaging speeds up allows doctors/radiologist for more the diagnostic process, accurate diagnoses, especially for allowing for quicker subtle abnormalities allowing for treatment initiation and early detection of conditions and potentially improving more effective treatment plans. patient outcomes. WHAT KIND OF DISEASES CAN COMPUTED RADIOGRAPHY(CR) CAN BE USED? DIGITAL RADIOGRAPHY (DR) Digital radiography (DR) is an advanced form of x-ray inspection which produces a digital radiographic image instantly on a computer. Is a cassette-less system Uses a flat panel detector or a charge coupled device connected to a computer Needs new equipment installation  DIGITAL RADIOGRAPHY(DR) Cassette-less System DIRECT INDIRECT CONVERSION CONVERSION X-rays X-rays Visible Light Electronic Signals Electronic Signals ADVANTAGES AND Faster image acquisition DISADVANTAGES OF Better quality images DIGITAL RADIOGRAPHY High volume capacity (DR) Greater dose efficiency [for Cesium Iodide (CsI) panels] More expensive initial costs Requires protection from dropping or mishandling Protection cover is recommended if panel will be removed from the bucky tray or table WHAT KIND OF DISEASES CAN DIGITAL RADIOGRAPHY(DR) CAN BE USED? WHAT IS THE DIFFERENCE BETWEEN DIGITAL AND COMPUTED RADIOGRAPHY? Computed Radiography(CR) Digital Radiography(DR) Lower initial investment Higher initial investment Lower image quality Better image quality Labor-intensive due to the need Completely digitized setup for cassette transfer to the plate Compact profile reader Lower risk of overexposure More bulky Less portable unless newer Higher risk of overexposure wireless systems used More portable More efficient Less efficient Ideal for high workflow Suitable for low or moderate workflow  INTRODUCTION While Computed Radiography (CR) is widely used in medical imaging, its applications extend beyond healthcare into various industrial sectors. CR is a versatile tool in non-destructive testing (NDT) and quality assurance, providing detailed imaging for inspection and analysis. Below are specific examples of how CR is utilized in industries like aerospace, oil & gas, automotive/manufacturing, and construction/research.  Usage of Modality Computed Radiography (CR) Automotive Manufacturing Portable Imaging Pediatric Imaging In automotive production, CR CR is utilized in portable X-ray CR is frequently used in pediatric facilitates the inspection of systems for bedside imaging in imaging due to its ability to welds and structural critical care units and provide high-quality images with components. The rapid emergency situations. The lower radiation doses. The processing of images allows flexibility of cassette sizes allows flexible cassettes can easily manufacturers to quickly identify for imaging in various positions accommodate smaller body defects, enhancing production and locations. parts, making it suitable for efficiency and reducing imaging infants and children. downtime  Usage of Modality DIgital Radiography (DR) Emergency Industrial Non-Destructive Mammography Radiology Testing (NDT) CR is widely used in hospitals CR is utilized in portable X-ray DR is applied in NDT for and clinics for general systems for bedside imaging in inspecting welds and structural radiographic examinations, such critical care units and integrity in manufacturing and as chest X-rays, skeletal imaging, emergency situations. The construction. Its rapid imaging and dental radiography. Its flexibility of cassette sizes allows capabilities allow for quick compatibility with existing X-ray for imaging in various positions assessments, minimizing equipment makes it a cost- and locations. operational delays effective option for transitioning to digital imaging. POST -TEST QUESTIONS 1. WHAT DOES CR STAND FOR? 2. WHAT DOES DR STAND FOR? 3.IN CR, THE IMAGE IS CAPTURED USING? 4.IN DR, THE IMAGE IS CAPTURED USING? 5.WHICH SYSTEM HAS A LONGER PROCESSING TIME COMPARED TO THE OTHER? 6.WHICH SYSTEM USES A FLAT PANEL DETECTOR? 7.WHICH SYSTEM REQUIRES A CASSETTE- BASED SYSTEM? 8.WHICH SYSTEM IS MORE ENVIRONMENTALLY FRIENDLY? 10. WHAT TYPE OF IMAGING IS BEST FOR DIAGNOSING FRACTURES? 11. GIVE 1 ADVANTAGE OF USING DR? 12. WHAT TYPE OF IMAGING IS TYPICALLY USED FOR DENTAL X-RAYS? 13. GIVE 1 DISADVANTAGE OF COMPUTED RADIOGRAPHY 14.GIVE 1 USAGE OF THE COMPUTED RADIOGRAPHY 15. GIVE 2 DISEASES THAT DIGITAL RADIOGRAPHY CAN BE USED THANK YOU!