[NMR tomography compared to skeletal scintigraphy after traumatic vertebral body fractures].
MRI and scintigraphy were compared in 73 patients with 104 vertebral fractures aged between three days and 64 months. MRI was performed at 0.5 Tesla and 1.5 Tesla using T1- and T2-weighted spin-echo sequences. Isotope uptake was divided into four grades (normal, mild, moderate and marked increase). 92% of cases aged 0-6 months showed increased signal intensity on T2 sequences. This finding reflects edema in the bone. All these cases showed moderate or markedly increased uptake in 86%. The increased signal intensity in T2 spin-echo images provides a criterion for differentiating new from old fractures. The identification of normal fatty marrow in 91% of fractured vertebrae provides an important means for distinguishing traumatic from neoplastic fractures. One can also demonstrate bleeding, fatty change and sclerotic bone. MRI is less sensitive than scintigraphy, but more specific in following the posttraumatic healing process.
Allgayer
B
B
Institut für Röntgendiagnostik, Klinikum rechts der Isar, München.
vd Flierdt
E
E
von Gumppenberg
S
S
Heuck
A
A
Matzner
M
M
Lukas
P
P
Luttke
G
G
D000293:Adolescent; D000328:Adult; D004164:Diphosphonates; D005069:Evaluation Studies as Topic; D005260:Female; D050723:Fractures, Bone / Q000175:diagnosis*; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000293:injuries* / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D013667:Technetium; D017556:Technetium Compounds; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging / Q000293:injuries* / Q000473:pathology; D013997:Time Factors
D004164:Diphosphonates; D017556:Technetium Compounds; D013667:Technetium; C029045:technetium Tc 99m diphosphonate
Die Kernspintomographie im Vergleich zur Skelettszintigraphie nach traumatischen Wirbelkörperfrakturen.