ISSN:
1432-2161
Schlagwort(e):
Bone marrow
;
Blood supply
;
Magnetic resonance imaging
;
Enhancement
;
Lumbar spine
;
Gadopentetate dimeglumine
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Medizin
Notizen:
Abstract A retrospective study was performed to determine whether bone blood supply can be assessed on gadolinium-enhanced magnetic resonance imaging. Lumbar spine magnetic resonance imaging (MRI) examinations of 49 patients attending for post-laminectomy examination were reviewed (30 male, 19 female, mean age 46.4 years, age range 23–84 years). Each study included sagittal T1-weighted spin echo sequences before and after gadolinium administration. Regions of interest were drawn within the L3 vertebral body from a parasagittal slice from each sequence. Signal intensity (SI) values were ascertained and the percentage increase in SI was calculated. For each patient, changes in receiver gain for pre and post-gadolinium images were corrected by an image scaling factor. In all cases, a measurable increase in SI was found (mean 15.3%, range 4.4–55.7) due to bone vascularity. The results give no indication of the quantity or timing of blood supply but provide a basis for further work.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00204608
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