[摘要] 目的 探讨磁共振成像(MRI)在颅脑损伤中的诊断作用。方法 对48例急性脑损伤患者,用自身对比的方法进行计算机X线体层扫描(CT)与MRI检查;分析两者的优缺点。结果 硬膜下血肿、硬膜外血肿的诊断, CT与MRI结果相符;蛛网膜下腔出血、颅骨骨折的诊断,CT较敏感
增强扫描磁共振(contrast enhanced MRI,CE-MRI)常用T,WI成像。由于脑梗死的血-脑屏障破坏,出现脑回样强化,常见于梗死后2~3天,持续2周左右。 MRI用于急性缺血性卒中患者的溶栓选择 常规CT、MRI对超早期脑梗死诊断的敏感性较低。PWI可快速、准确地评...
PURPOSE PET/MRI has to measure up to PET/CT and should ideally show diagnostic advantages over PET/CT before introduction into clinical routine. The purpose was to compare contrast-enhanced PET/CT (cePET/CT) and non contrast-enhanced PET/MRI (PET/MRI) concerning diagnostic accuracy in evaluation...
55 A COMPARISON OF CONTRAST ENHANCEMENT ON MRI VERSUS CTAn abstract is unavailable. This article is available as a PDF only.doi:10.1097/00004424-198609000-00073RungeV MInvestigative Radiology
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Objective: The objective was to retrospectively study computed tomography (CT) and magnetic resonance imaging (MRI) findings of adenosquamous carcinoma of the pancreas (PASC). Materials and Methods: Twelve patients (six women and six men; mean age, 61.3 years; range, 47-78 years) who presented...
MRI scans have transformed how radiologists diagnose MS, and are now the primary method doctors use to diagnose the condition, to the exclusion of other techniques such as CT scans, since in MRI scans, the lesions appear quite distinctly. However, contrast MRIs aren’t necessary for an MS ...
在磁场中,血管夹可能移位,起搏器可能关闭或程序紊乱,置换的关节可能由于热效应而膨胀。 幽闭恐惧症患者不能接受此项检查。 (2)伪影 较常见的伪影有磁化伪影、运动伪影、拉链伪影、化学位移伪影及环状伪影等。 (3)其他 获得图像的时间远长于CT。 不适合检查紧急、危重、需要多项生命体征监护的患者。
Amade Bregy ,等撰写的《MRI对比清除率分析检测脑肿瘤复发与放射外科治疗后放疗效果的组织病理学相关性:一项验证性研究Histopathological correlation of brain tumor recurrence vs. radiation effect post-radiosurgery as detected by MRI cont...
MRI with contrast vs. without Before some MRIs, you'll get contrast dye injected into a vein in your arm or hand. This dye helps the doctor more clearly see structures inside your body or subtle changes between tissue that is healthy and tissue that is cancerous. The dye often used in ...