Humagain S, Maharjan R, Koju R
Department of Cardiology Dhulikhel Hospital, Kathmandu University Hospital Dhulikhel, Kavre.
Department of Nursing, Cathlab Dhulikhel Hospital, Kathmandu University Hospital Dhulikhel, Kavre.
Kathmandu Univ Med J (KUMJ). 2015 Jan-Mar;13(49):61-3. doi: 10.3126/kumj.v13i1.13755.
Radiation is a necessary evil in Coronary Angiogram. The Interventional Cardiology procedure provides huge benefit to the patient but at the cost of radiation. There is evidence of cumulative effect of radiation. Therefore it is essential to keep the radiation dose as minimum as possible.
The aim of this study is to find out radiation exposed to the patient undergoing diagnostic coronary angiogram.
A retrospective study was done. Those patients who underwent diagnostic coronary angiogram were selected for the study. There were total of 166 patients. Radiation exposure in terms of fluoroscopy time in minute and dose area product (DAP) in Gy.cm2 was recorded.
Out 166 patients 92 were male and 74 female. Age range was from 39 to 79 years with mean age 58.13±9.14. Amount of contrast used was in range of 30 to 100 ml with mean of 45.54±14.06. Range of fluoroscopy time was 2.60 to 37.00 minutes with mean 11.38±6.80. Mean fluoroscopy time in male was 10.92±5.82 minutes and in females it was 11.92±7.68 minutes, with p 0.331. The range of DAP was 11.00 Gy.cm2 to 106.00 Gy.cm2 with mean 40.73±23.58 Gy.cm2. The mean DAP in male and female was 38.77±23.26 Gy.cm2 and 43.16±23.90 Gy.cm2 respectively with p 0.234.
From this study we can conclude that the radiation exposure to our patient undergoing coronary angiogram is similar to the international values in terms DAP but more in terms of fluoroscopy time. When males and females compared there is no difference.
在冠状动脉造影中，辐射是一种必要的有害因素。介入心脏病学手术给患者带来了巨大益处，但要以辐射为代价。有证据表明辐射存在累积效应。因此，将辐射剂量保持在尽可能低的水平至关重要。
本研究的目的是找出接受诊断性冠状动脉造影的患者所受到的辐射量。
进行了一项回顾性研究。选择那些接受诊断性冠状动脉造影的患者进行研究。共有166名患者。记录了以分钟为单位的透视时间和以Gy.cm²为单位的剂量面积乘积（DAP）形式的辐射暴露情况。
166名患者中，92名男性，74名女性。年龄范围为39至79岁，平均年龄58.13±9.14。造影剂用量范围为30至100毫升，平均为45.54±14.06。透视时间范围为2.60至37.00分钟，平均为11.38±6.80。男性的平均透视时间为10.92±5.82分钟，女性为11.92±7.68分钟，p值为0.331。DAP范围为11.00 Gy.cm²至106.00 Gy.cm²，平均为40.73±23.58 Gy.cm²。男性和女性的平均DAP分别为38.77±23.26 Gy.cm²和43.16±23.90 Gy.cm²，p值为0.234。
从本研究中我们可以得出结论，接受冠状动脉造影的患者所受到的辐射暴露在DAP方面与国际值相似，但在透视时间方面更高。男性和女性相比没有差异。
