论文部分内容阅读
目的提高自发眼球内出血磁共振影像(MRI)诊断的准确性。设计回顾性病例系列。研究对象自发眼球内出血患者6例。方法回顾性分析经手术后病理证实的6例自发眼球内出血病例的影像资料,经灰阶超声检查6例,彩色多普勒检查5例,MR检查6例,其中MR增强检查5例。主要指标病变形态、信号、强化特点、声像特点。结果在MRI图像上,病灶新月形1例,扁豆状2例,驼峰状3例。短T1短T2、长T1长T2、短T1长T2信号各2例。T2WI上病灶有低信号环2例。5例病灶内部均无强化。其中2例病灶邻近眼环强化,1例病灶环形强化。MRI诊断正确2例,2例误诊为脉络膜黑色素瘤,2例误诊为肿瘤并出血;灰阶超声6例均诊断为肿块。彩色多普勒超声4例诊断为出血,主要依据为病灶内无血流信号,1例诊断为肿物。结论自发眼球内出血MR信号多变,病灶内部无强化是其主要特点。综合利用超声信息可以提高诊断的准确性。
Objective To improve the diagnostic accuracy of spontaneous intraocular haemorrhage magnetic resonance imaging (MRI). Design retrospective case series. Study of spontaneous intraocular hemorrhage in 6 patients. Methods The data of 6 cases of spontaneous intraocular haemorrhage confirmed by pathology were analyzed retrospectively. Six cases were examined by gray-scale sonography, five cases were color Doppler sonography, six cases were MR examination, and five cases were examined by MR. The main indicators of lesion morphology, signals, enhanced features, audio and video features. Results In the MRI images, there were 1 case of crescent lesions, 2 cases of lentils and 3 cases of humps. Short T1 short T2, long T1 long T2, short T2 long T2 signals in 2 cases. T2WI lesion with low signal ring in 2 cases. There was no enhancement in 5 cases. Two cases of lesions near the eye ring enhancement, 1 case of ring enhancement. 2 cases were correctly diagnosed by MRI, 2 cases were misdiagnosed as choroidal melanoma, 2 cases were misdiagnosed as tumors and hemorrhaged; 6 cases with gray-scale sonography were diagnosed as lumps. Color Doppler ultrasound diagnosis of 4 cases of bleeding, mainly based on no blood flow within the lesion signal, a case of diagnosis of tumor. Conclusions Spontaneous intraocular hemorrhage MR signal is variable, no enhancement inside the lesion is its main feature. Comprehensive utilization of ultrasound information can improve the diagnostic accuracy.