ISSN:
1432-1084
Keywords:
Computed tomography
;
Helical technology
;
Image quality
;
Radiation exposure
;
Dosimetry
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract Image quality and dose produced by a spiral CT with various pitch values were investigated on the basis of test-object images and measurements of CT dose indexes. No major difference in image quality or dose was observed when comparing sequential and spiral mode acquisition with a pitch of one. Increase in pitch value produces a loss of contrast which leads to a loss of detectability. Nevertheless, in realistic protocls the image quality in the transverse plane remains acceptable up to pitch values of 1.3 – 1.6.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00182477
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