[Legg-Calvé-Perthes disease. The value of MRT in its early diagnosis and the assessment of its course].
We report on the value of MRT in diagnosis and follow-up of Perthes' disease. 38 children who were clinically suspect of suffering from Perthes' disease were examined by conventional x-ray and MRT. 25 children were proven to have Perthes' disease, 12 of them in an early stage. During the onset of the disease MRT showed a higher sensitivity (58% vs 50%) and accuracy (74% vs 71%) than conventional x-ray while specificity was equal (83% for both). Additionally, MRT in combination with the still obligatory x-ray gave no false-positive results. In some cases, the diagnosis may be found up to 6 weeks earlier using MRT. Conservative therapeutic regimens obviously will not profit from this. Although excluding other diseases is certainly helpful, the value of MRT as a primary diagnostic procedure is limited. During follow-up, MRT helps to reduce the number of x-ray examinations since it can easily assess the containment of the hip and the bone marrow revitalisation. Scintigraphy, another valuable method to judge revitalisation, should remain limited to selected cases, as it requires significant amounts of radiation.
Rix
J
J
Abteilung für Röntgendiagnostik, Universitätskrankenhaus Eppendorf, Hamburg.
Maas
R
R
Eggers-Stroeder
G
G
Bruns
J
J
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D007873:Legg-Calve-Perthes Disease / Q000175:diagnosis* / Q000453:epidemiology; D008279:Magnetic Resonance Imaging; D008297:Male; D011859:Radiography; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D013997:Time Factors
M. Legg-Calvé-Perthes. Wertigkeit der MRT in der Frühdiagnostik und Verlaufsbeurteilung.