CAJ | 학술논문

目的：探讨儿童三角肌挛缩症3.0 T MRI影像表现。材料与方法搜索经手术病理证实的三角肌挛缩症患儿18例，术前均行 X线及3.0 T MRI检查(MR T1WI、T2WI，抑脂T2WI、轴位快速梯度回波(GRE)T2WI序列)，其中9例同时行CT检查。结果 T1WI及T2WI显示18例受累三角肌不同程度变薄、萎缩，内侧肌间隙增宽。GRE-T2WI显示16例患侧从肱骨头外上方沿三角肌走行至外下的挛缩纤维索条影，呈条带状低信号，邻近皮下脂肪局灶性增厚、向内填充。病理结果显示GRE-T2WI中挛缩纤维索条影为致密纤维结缔组织，透明变性，横纹肌萎缩或消失，肌组织间由脂肪组织填充，所见与病理结果符合率为88.9%。结论3.0 T MRI尤其GRE-T2WI序列能够直接准确显示挛缩三角肌及增生的纤维索条结构，有利于确定诊断。
목적：탐토인동삼각기련축증3.0 T MRI영상표현。재료여방법수색경수술병리증실적삼각기련축증환인18례，술전균행 X선급3.0 T MRI검사(MR T1WI、T2WI，억지T2WI、축위쾌속제도회파(GRE)T2WI서렬)，기중9례동시행CT검사。결과 T1WI급T2WI현시18례수루삼각기불동정도변박、위축，내측기간극증관。GRE-T2WI현시16례환측종굉골두외상방연삼각기주행지외하적련축섬유색조영，정조대상저신호，린근피하지방국조성증후、향내전충。병리결과현시GRE-T2WI중련축섬유색조영위치밀섬유결체조직，투명변성，횡문기위축혹소실，기조직간유지방조직전충，소견여병리결과부합솔위88.9%。결론3.0 T MRI우기GRE-T2WI서렬능구직접준학현시련축삼각기급증생적섬유색조결구，유리우학정진단。
Objective: To study the 3.0 T MRI characteristic features of deltoid contracture in children.Materials and Methods:The study comprised 18 children with deltoid contracture. All children were performed with X-ray and 3.0 T MRI. MR routine scanning sequences were T1WI, T2WI, T2WI with fat suppression sequence, and axial fast gradient echo (GRE) T2WI sequence. CT scan was conducted in 9 children.Results:MR T1WI and T2WI showed that involved deltoid became thin and atrophic in different degree, and the inner muscular clearance became broad in 18 cases. GRE-T2WI showed that out above humerus head there had low signal ifber band along to the outside of the deltoid contracture in 16 cases, and adjacent subcutaneous fat focal thickening to ifll in the surface of band. Pathological results showed, in MR GRE-T2WI, contracture ifbrous bands were dense ifbrous connective tissue, hyaline degeneration, the striated muscle to atrophy or disappear, and showed adipose tissue to fill between muscle tissue; Coincidence rate of MR GRE-T2WI manifestation and pathology results was 88.9%.Conclusion:3.0 T MRI can directly show exactly contracture deltoid and hyperplasia ifbrous bands structure, and then determine a clear diagnosis.