- 期刊
比較血管攝影儀器使用導管校正法與自動校正法量測血管直徑之準確性
Comparison of Vascular Diagnostic Instruments Using Catheter Correction and Automatic Calibration to Measure the Accuracy of Vascular Diameter
摘要
腦中風多年來都是台灣中老年人健康的重大威脅！造成梗塞性腦中風的重要原因大多為頸動脈狹窄，頸動脈支架置放為治療頸動脈狹窄方式之一，治療前量測血管直徑大小為決定支架尺寸之重要依據。目前血管攝影儀器量測直徑前校正方式有兩種，一種為儀器利用導管直徑大小進行校正，另一種則為儀器自動校正，此兩種方式各醫院目前皆有使用，本研究目的為得知何種量測方式所量測之數值最接近真實血管管徑大小。研究使用GE全數位式血管攝影X光機與電子數位游標尺進行攝影。本研究發現兩者校正方式對於真實長度皆有誤差，但使用儀器自動校正法量測較為接近真實物體大小。目前血管攝影儀器並沒有標準之量測方式，建議爾後可建立標準之校正及量測方式，才可以精準量測出接近真實血管管徑之大小。
並列摘要
Stroke has been one of major threats to the health of the elderly in Taiwan for many years. Since carotid stenosis is an important factor causing infarct stroke, carotid artery stenting is one way for the treatment of carotid stenosis. Therefore, the measurement of vascular diameter is the most important factor for the determination of stent size before treatment. Nowadays, there are two ways for measuring the amount of photographic apparatus in calibration mode before the correct vascular diameter has been determined in angiography: the use of catheter diameter for calibration by instrument and the automatic calibration by instrument. In our hospital, the two methods are both being used. In this study, the data closer to the actual diameter is expected to be determined. The study used two methods to measure diameters with table height at 0 or 15 cm. The results show the automatic calibration method to measure diameter is closer to the real values (catheter diameter for calibration method error percentage: 4.17%-6.00%; automatic calibration method error percentage: -2.94% to -4.40%). We suggested that the Competent Authority could formulate the quality assurance plan for fluorography to improve the quality of radiological diagnosis and to reduce the radiation exposure received by patients.