conventional x ray. difference between CR & DR

1. Equipment's of Radiology
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By Dr. Zoshia Ali Zaidi
PGR Radiology CMH Jehlum

2. TOOLS OF RADIOLOGY
• X-rays
• CT
• Ultrasound
• Next Goals :
• Mammography
• MRI
• Fluoroscopy

3. Conventional Radioghraphy
 Method is film-based.
 Method uses intensifying screens.
 Film is placed b/w two screen.
 Screens emit light when x-rays strike them.
 Film is processed chemically.
 Processed film is viewed on lightbox.

4. Computed Radiography
• Uses storage phosphor plates.
• Uses existing equipment.
• Requires special cassettes.
• Requires special cassette reader.
• Uses a computer workstation and viewing station
and a printer.

5. Digital Radioghraphy
• Cassetteless system.
• Uses a flat panel detector or charge-coupled device(CCD) hard-
wired to computer.
• Requires new installation of room or retrofit.

6. Comparison of Film to CR and DR
• For conventional x-ray and computed radioghraphy (CR), a traditional
x-ray room with a table and wall bucky is required.
• For DR, a detector replaces the Bucky apparatus in the table and wall
stand.
• Conventional and CR efficieny ratings are about the same.
• DR is much more efficient, and image is available immediately.

7. Image processing
 Conventional radioghraphy image is determined by the film itself and
the chemicals.
 CR and DR image takes place in a computer.
 For CR,the computer is located near the readers.
 For DR,the computer is located next to x-ray console, or it may be
integrated within the console,and the image is processed before
moving on to the next exposure

8. Toshiba USG LOGIC USG MACHINE

9. Advantages
• Versatile imaging
• Compared to X-rays, which are best for taking images of your bones, ultrasounds give us a better
look at your soft tissues. That means we can do everything from monitoring a baby in the womb
to detecting potential problems in your bladder, ovaries, uterus, cervix, and fallopian tubes.
• Widely accessible
• Not only is ultrasound among the most accurate imaging technologies, but they’re also the most
cost-effective and accessible.
• Noninvasive
• Worried about pain? Scared of needles? You’re not alone. The good news is that ultrasound is
noninvasive and doesn't require any poking or prodding. And other than a bit of pressure as we
move the wand, you shouldn’t feel any discomfort.
• Less risk
• With CT scans and X-rays, there’s a risk of exposure to ionizing radiation — but not with
ultrasound. It uses the power of sound waves to take images of your soft tissues and comes with
virtually no harmful effects.

10. Toshiba CT Scan 160 slice
160-slice CT scanner is built with the latest advances in low dose technology resulting in at least 50% less
radiation than conventional CT. This low dose technology ensures you receive the highest quality images for
diagnosis.

11. Benefits
• Benefits of CT includes
• improving cancer diagnosis, staging and treatment
• reducing the need for exploratory surgeries
• guiding treatment of common conditions such as injury, and stroke

12. In my opinion
• DR has some significant advantages over conventional radiography .
• DR improves workflow by producing higher quality images
instantaneously while providing two to three times more dose
efficiency than conventional radiography .
• The high speed of image acquisition is another advantage of DR
technology.