| 扈琳,崔炜,王维纲,冯燕光,黄雪燕,石汉文,田英平,刘志胜.X射线心室造影计算左室容积三种方法的比较[J].中华放射医学与防护杂志,2003,23(5):352-354 |
| X射线心室造影计算左室容积三种方法的比较 |
| Comparison of the accuracy of three angiographic methods for calculating left ventricular volume measurement |
| 投稿时间：2002-10-15 |
| DOI： |
| 中文关键词: 心室 铸型 X射线心室造影 |
| 英文关键词:Ventricular Cast X-ray ventriculography |
| 基金项目:河北省博士基金资助项目(00542001D15) |
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| 中文摘要: |
| 目的 评价X射线心室造影计算左心室容积的3种方法:单平面面积长度法、双平面面积长度法和单平面Simpson法的相对准确性。方法 对人的左心室铸型(12只)进行X射线摄影,分别用单平面面积长度法、双平面面积长度法和单平面Simpson法3种方法计算左心室容积;左心室铸型的实际容积由铸型排出水的体积来测定。结果 左心室铸型的实际容积为(61.17±26.49)ml;单平面面积长度法计算的容积为(97.50±35.56)ml;双平面面积长度法计算的容积为(90.51±36.33)ml;单平面Simpson法计算的容积为(65.00±23.63)ml。单平面和双平面面积长度法的计算值明显大于左心室铸型的实际容积值和单平面Simpson法的计算值(P均<0.05);而单平面Simpson法的计算值与左心室铸型的实际容积差异无显著性(P>0.05);单平面和双平面面积长度法的计算值之间差异无显著性(P>0.05)。相关分析表明,单平面面积长度法、双平面面积长度法和单平面Simpson法的容积计算值均与左心室铸型的实际容积高度相关(r均>098),但单平面和双平面面积长度法对左心室容积的高估程度均较单平面Simpson法更高,单平面法为(36.34±17.98)ml,双平面法为(29.34±15.59)ml,单平面Simpson法为(3.83±8.48)ml,P<0.01。结论 X射线心室造影计算左室容积方法、单平面Simpson法较单平面和双平面面积-长度法更精确,但对于不具有分析软件的电影摄影设备,面积-长度法亦可用于计算左心室容积。 |
| 英文摘要: |
| Objective To compare the relative accuracy of three methods measuring left ventricular volume by X-ray ventriculography:single plane area-length method, biplane area-length method, and single-plane Simpson's method. Methods Left ventricular casts were obtained within 24 hours after death from 12 persons who died from non-cardiac causes. The true left ventricular cast volume was measured by water displacement. The calculated volume of the casts was obtained with 3 angiographic methods, i.e., single-plane area-length method, biplane area-length method, and single-plane Simpson's method.Results The actual average volume of left ventricular casts was (61.17±26.49) ml. The left ventricular volume was averagely (97.50±35.56) ml with single plane area-length method, (90.51±36.33) ml with biplane area-length method, and (65.00±23.63) ml with single-plane Simpson's method. The left ventricular volumes calculated with single-planeand biplane area-length method were significantly larger than that the actual volumes (P<0.05), but there were no significant differences between the actual volumes and those calculated with single-plane Simpson's method (P>0.05). The left ventricular volumes calculated with single-plane and biplane area-length method were significantly larger than those calculated with single-plane Simpson's method (P<0.05). There were no significant differences between volumes calculated with single-plane and with biplane area-length methods (P>0.05). The overestimation of left ventricular volume by single plane area-length method (36.34±17.98) ml and biplane area-length method (29.34±15.59) ml was more obvious than that calculated by single-plane Simpson's method (3.83±8.48) ml. Linear regression analysis showed that there was close correlations between left ventricular volumes calculated with single plane area-length method, biplane area-length method, Simpson's method and the true volume(all r >0.98).Conclusion Single-plane Simpson's method is more accurate than single plane area-length method and biplane area-length method for left ventricular volume measurement; however, both the single-plane and biplane area-length methods could be used in clinical practice, especially in those imaging modality without sophisticated software. |
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