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Dynamic range compression in surface coil MRI

✍ Scribed by T Sharples; R Lufkin; B Flannigan; W Hanafee

Book ID
103908838
Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
416 KB
Volume
4
Category
Article
ISSN
0730-725X

No coin nor oath required. For personal study only.

✦ Synopsis

The largs dynamic range in signal intensity present in MR surface coil images makes proper windowing and photography difficult. By removing the low spatial frequency information due to variations in surface coil field intensity from the high spatial frequency information containing the image data a considerable compression of this Qnamic range of signal intensity is possible.

A technique to accomplish this was implemented on a digital computer for use with RR surface coil imegs data. The compression W(IS done as a post processing option after the patient seen had been completed and therefore did not alter actual scan times. Although the image signaf to noise was not altered, the image quality and ease of photography for most images was improved. Thus, digital dynamic range compression is a practical technique to aid in surface coil MRI studies.

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