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经济危机影响美国诊断图像设备市场
Millennium Research Group公司的分析认为,增长放缓的经济影响MRI、CT和核医学设备市场.
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The aim of this study was to evaluate the resolution of brain lesions in patients with Wilson’s disease during the long-term chelating therapy using magnetic resonance imaging and a possible signiifcance of the time latency between the initial symptoms of the disease and the introduction of this therapy. Initial magnetic resonance examination was performed in 37 patients with proven neurological form of Wilson’s disease with cerebellar, parkinsonian and dystonic presentation. Magnetic resonance reexamination was done 5.7 ± 1.3 years later in 14 patients. Patients were divided into: group A, where chelating therapy was initiated < 24 months from the ifrst symp-toms and group B, where the therapy started≥ 24 months after the initial symptoms. Symmetry of the lesions was seen in 100% of patients. There was a signiifcant difference between groups A and B regarding complete resolution of brain stem and putaminal lesions (P= 0.005 andP=0.024, respectively). If the correct diagnosis and adequate treatment are not established less than 24 months after onset of the symptoms, irreversible lesions in the brain parenchyma could be ex-pected. Signal abnormalities on magnetic resonance imaging might therefore, at least in the early stages, represent reversible myelinolisis or cytotoxic edema associated with copper toxicity.
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腕关节多发无菌性坏死一例
患者男,39岁,从事风镐工作15年左右,于4d前操作风镐后出现右腕部疼痛,局部肿胀,腕关节活动受限,自行红花油治疗后无明显好转。患者平素健康,未患系统性疾病,无外伤史,无服用类固醇激素史。以“右腕部肿痛”收入院。
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小肝癌典型影像学特征及影像诊断方法选择
原发性肝癌居世界常见恶性肿瘤第5位,致死率在恶性肿瘤中居第3位[1],中国占世界肝癌发生病例的55%[2].目前肝癌的治疗效果不尽如人意,其原因之一在于诊断明确时已处于疾病的晚期阶段,另一原因在于治疗的不彻底[3].如能提高早期肝癌即小肝癌的诊断率,使小肝癌患者及早手术,其预后将与大肝癌患者截然不同,将对延长患者生存期起着关键作用.