数字减影血管造影测量中的危险进展：何时一毫米并非一毫米？
Dangerous advances in measurements from digital subtraction angiography: when is a millimeter not a millimeter?
作者信息
Fox A J, Millar J, Raymond J, Pryor J C, Roy D, Tomlinson G A, McKay J P, Molyneux A J
机构信息
Department of Neuroradiology, Sunnybrook Health Sciences Center, University of Toronto, Toronto, Ontario, Canada.
出版信息
AJNR Am J Neuroradiol. 2009 Mar;30(3):459-61. doi: 10.3174/ajnr.A1381. Epub 2008 Nov 27.
Abstract
Aneurysms need accurate millimeters (mm). Direct millimeters were lost with digital subtraction angiography (DSA) years ago, with measurements in pixels. Advances in DSA can now give inherent millimeters. The Cerecyte aneurysm coiling trial's angiographic core lab assesses images from compact disc (CD). External fiducials for millimeter calibration are required. Of 25 cases with two 10 mm fiducials, near and far from the intensifier, the midline mean is between 9 "mm" to 15 "mm". Yet 10 mm must be 10 mm. This variance is potentially dangerous. Proprietary software seems to prohibit calibration transfer via CD to another vendor's system.
摘要
动脉瘤测量需要精确到毫米（mm）。多年前数字减影血管造影（DSA）采用像素测量，直接的毫米测量值因此丢失。如今DSA技术的进步能够给出固有的毫米测量值。Cerecyte动脉瘤栓塞试验的血管造影核心实验室评估来自光盘（CD）的图像。需要用于毫米校准的外部基准物。在25例带有两个10毫米基准物（一个靠近增强器，一个远离增强器）的病例中，中线平均值在9“mm”至15“mm”之间。然而10毫米必须就是10毫米。这种差异具有潜在危险性。 proprietary软件似乎禁止通过CD将校准数据传输到另一个供应商的系统。 （注：原文中“Proprietary software”直译为“专有软件”，这里保留英文未翻译，可能是特定的专业软件名称，需结合具体语境进一步准确翻译）
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