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首页> 外文期刊>Oral science international. >The relationship between bone marrow edema and bone changes in the mandibular condyle: A longitudinal study with MR imaging
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The relationship between bone marrow edema and bone changes in the mandibular condyle: A longitudinal study with MR imaging

机译：骨髓水肿与下颌con骨变化之间的关系：MR成像的纵向研究

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Purpose: Decreased signal intensity on T1 - or proton-density weighted magnetic resonance imaging (MRI) and increased signal intensity on T2-weighted MRI in the bone marrow space are thought to reflect bone marrow edema (BME). The purpose of this study was to determine whether condyle BME is associated with condyle bone changes.Methods: The subjects were 57 patients [65 temporomandibular joints (TMJs)] with TMJ disorders showing condyle BME on initial MRI. Condyle bone changes were compared between TMJs that showed a persistent BME pattern (group P, 43 TMJs in 40 patients) and those that showed normal bone marrow signals, indicating disappearance of BME (group D, 21 TMJs in 22 patients) on follow-up MRI. Results: (1) In TMJs with a condyle with a normal shape on initial MRI, condyle bone changes were present in 53.9% of TMJs in group P in follow-up MRI, whereas the normally shaped condyle remained in all TMJs in group D. (2) In TMJs with condyle erosion on initial MRI, condyle erosion was also present in 35.7% of TMJs in group P in follow-up MRI, but had disappeared in all TMJs in group D. (3) In TMJs with condyle osteophytes on initial MRI, erosion was present in 22.2% of TMJs in group P, whereas osteophytes remained in all TMJs in group D.Conclusions: The longitudinal study showed that condyle BME is associated with condyle bone changes and may cause condyle erosion.
机译：目的：骨髓空间中的T1或质子密度加权磁共振成像（MRI）信号强度降低和T2加权MRI信号强度升高，被认为反映了骨髓水肿（BME）。本研究的目的是确定whether突BME是否与con突骨变化有关。方法：受试者为57例[65颞下颌关节（TMJs）]的TMJ疾病，在初次MRI表现为showing突BME。比较表现为持续性BME模式的TMJ（P组，40例患者中的43个TMJ）与表现出正常骨髓信号的TMJ（组，22个患者中的21个TMJ）中的突骨变化。核磁共振结果：（1）在初次MRI时TM突形状正常的TMJ中，随访MRI的P组中53.9％的TM突中存在con骨变化，而D组的所有TMJ中均保持正常形状的con突。 （2）在初次MRI表现为erosion突侵蚀的TMJ中，P组在后续MRI检查中J突侵蚀也占35.7％，但在D组的所有TMJ中均消失。（3）在on突骨赘生物的TMJ中，erosion突侵蚀消失。最初的MRI，P组22.2％的TMJ中存在糜烂，而D组中所有TMJ中仍存在骨赘。结论：纵向研究表明con BME与con骨变化有关，并可能导致con侵蚀。

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