The image acquire application will check for all fields checked above on the patient
information screen to ensure that they have been completed. Previously only the
“Patient Name” and “Patient ID” were required fields.
DICOM File Settings
Radlink performs image compression both when saving studies as well as sending to
remote destinations. The following figure displays the compression settings associated
with saving studies:
Figure 2-14 – DICOM Save Study Compression Options
The compression techniques supported are:
noCompression
– Save the image uncompressed.
jpeg2000Lossless
– Save the image using jpeg2000 wavelet lossless compression.
The number of bits stored will automatically be the number of bits in the image at the
time of the image save. The compression ratio to be expected is typically between 4
and 10 for jpeg2000 lossless compression.
jpeg2000lossy
– This compression technique utilizes jpeg2000 wavelet lossy
compression and achieves compression ratios between 10 and 70. The uncompressed
images appear lossless in quality with this compression technique. JPEG2000 will
perform 8, 12, and 16 bit compression.
jpeglossless
– This compression technique uses the common JPEG lossless
compression algorithms. The number of bits in the compressed image can be set to 8,
12 or 16 bits. The compressed image typically have a compression ratio of about 5 to
one.
jpeglossy – 8 bit Process 1
– This is JPEG 8 bit lossy compression. One can select a
quality factor to control the quality and resulting compression ratio. The default quality
factor is 90 (quality factor is set between 0 and 100). Rather good compression ratios
can be achieved with this compression technique but at the expense of image quality.
The uncompressed image will be 8 bit images of varying levels of acceptability.
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