[MR study of bone marrow changes of the spine following radiotherapy].
MR examinations of bone marrow variations in the spine after radiotherapy were performed on 24 patients in the thoracic and lumbar vertebral column. The actinically affected bone marrow showed a characteristic increase of signal intensity in T1-weighted sequences in the sagittal plane, due to conversion of red marrow to fatty marrow. The dose in the well-defined radiation areas was between 28 and 70 Gray (Gy). The lowest dose, applied to the bone-marrow bordering on the defined radiation areas, where we still could find an increase of signal intensity, was below 2.6 to 5 Gy. MR imaging was performed between 6 and 9 month after radiotherapy.
Universitätsklinik für Radiologie, Magnet-Resonanz (MR) Graz.
I
I
Starz
R
R
Einspieler
H
H
Poschauko
F
F
Ebner
K
K
Arian-Schad
E
E
Justich
D000328:Adult; D000368:Aged; D001853:Bone Marrow / Q000528:radiation effects*; D005260:Female; D006410:Hematopoiesis / Q000528:radiation effects; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010386:Pelvic Neoplasms / Q000532:radiotherapy*; D011832:Radiation Injuries / Q000175:diagnosis*; D013131:Spine / Q000528:radiation effects*; D013945:Thymoma / Q000532:radiotherapy*; D013953:Thymus Neoplasms / Q000532:radiotherapy*
MR-Untersuchung von Knochenmarksveränderungen in der Wirbelsäule nach Strahlentherapie.