russjcardiolРоссийский кардиологический журналRussian Journal of Cardiology1560-40712618-7620«SILICEA-POLIGRAF» LLC10.15829/1560-4071-2014-1-ENG-23-26russjcardiol-586Research ArticleОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯORIGINAL STUDIESВАЖНОСТЬ УГЛОВ РЕНТГЕНОВСКОЙ ТРУБКИ В КИНОФЛЮОРОГРАФИЧЕСКОМ ИССЛЕДОВАНИИ МЕХАНИЧЕСКИХ ПРОТЕЗОВIMPORTANCE OF ROENTGEN TUBE ANGLES IN CINEFLUOROSCOPIC INVESTIGATION OF MECHANICAL PROSTHESESCoşkunUğurCoşkunUğur

MD, Istanbul University Institute of Cardiology, Department of Cardiology, Cardiologist, Instructor, Haseki Street, Haseki, Aksaray/Fatih 34350, Istanbul/Turkey, Tel: +90 212 459 20 00, Fax: +90 212 459 20 69

drugurcoskun@gmail.comÖkçünBarışÖkçünBarışBaşkurtMuratBaşkurtMuratKılıçkesmezKadriyeKılıçkesmezKadriyeBostanCemBostanCemYıldızAhmetYıldızAhmetAratAlevAratAlevGürmenTevfikGürmenTevfikKüçükoğluMehmet SerdarKüçükoğluMehmet SerdarDepartment of Cardiology, Istanbul University Institute of Cardiology, Istanbul, Turkey20142801201401-ENG2326Copyright © Coşkun U., Ökçün B., Başkurt M., Kılıçkesmez K., Bostan C., Yıldız A., Arat A., Gürmen T., Küçükoğlu M.S., 20142014Coşkun U., Ökçün B., Başkurt M., Kılıçkesmez K., Bostan C., Yıldız A., Arat A., Gürmen T., Küçükoğlu M.S.Coşkun U., Ökçün B., Başkurt M., Kılıçkesmez K., Bostan C., Yıldız A., Arat A., Gürmen T., Küçükoğlu M.S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://russjcardiol.elpub.ru/jour/article/view/586Цель

Цель. Мы планировали кинофлюорографическое исследование (КФ), чтобы отметить идеальное открытие и закрытие углов трубки для митрального и аортального механических клапанов. Наша гипотеза, что если мы найдем зону интенсивности, где клапаны были бы оптимально видны, то, начало КФ с этого положения трубки позволило бы сократить продолжительность исследования.

Материал и методы

Материал и методы. В период с января 2010 года по август 2011 г. 192 пациентов (средний возраст-51,86±12,80 лет; 101 женщин и 91 мужчина) с митральным (n=135; одностворчатый: 37; двухстворчатый: 98), аортальным (n=87; одностворчатый:19; двухстворчатый: 68) и трикуспидальным (n=3; все двухстворчатый) протезами были включены в исследование. КФ была выполнена с помощью Philips Radiologic System. Для каждого типа и местоположения механических протезов оптимальные углы открытия-закрытия были получены и отмечены на x-y оси графика. Кроме того, мы исследовали, имеется ли квадрант интенсивности зоны.

Результаты

Результаты. Среди больных с протезированным двухстворчатым митральным клапаном в положении лежа на спине были получены оптимальные изображения: 34 (58,6%) больных были в правом переднем косом положении (RAO) краниальной проекции, 12 (20,7%) были в левом переднем косом положении (LAO) краниальной проекции, 7 (12,1%) были в RAO каудальной проекции и 5 (8,6%) были в LAO каудальной проекции. Среди больных с протезированным двухстворчатым аортальным клапаном в положении лежа на спине показано: 27 (50%) больных были в LAO краниальной проекции, 10 (18,5%) были в RAO краниальной проекции, 9 (16,7%) были в LAO каудальной проекции и 8 (14,8%) больных были в RAO каудальной проекции углов.

Заключение

Заключение. Согласно нашим результатам, кажется логичным начинать оценку митральной позиции КФ с определения квадранта углов RAO краниальной проекции и аортальной — с LAO краниальной проекции, что позволит сократить время и снизить облучение.

Aim

Aim. We planned a cinefluoroscopy (CF) study to mark the ideal opening and closing tube angles for mitral and aortic positioned mechanical valves. Our hypothesis was that if we find an intensity zone where the valves were optimally seen, then starting the CF examination from that tube position would shorten the examination duration

Material and methods

Material and methods. Between January 2010 and August 2011, 192 consecutive patients (mean age 51,86±12,80 years; 101 women and 91 male) with mitral (n=135; monoleaflet: 37; bileaflet: 98) and aortic (n=87; monoleaflet:19; bileaflet: 68) and tricuspid (n=3; all bileaflet) prostheses were enrolled into the study. Cinefluoroscopy was performed with Philips Radiologic System. For each type and location of mechanical prostheses optimal opening-closing angles obtained and marked on x-y axis graphic. Furthermore, we investigated whether there is an intensity zone quadrant.

Results

Results. Among patients with prosthetic bileaflet mitral valve in supine position optimal images were obtained: 34 (58,6%) patients were in RAO-Cranial, 12 (20,7%) were in left anterior oblique (LAO) cranial, 7 (12,1%) were in RAO caudal and 5 (8,6%) were in LAO caudal angles. Among patients with prosthetic bileaflet aortic valves in supine position shown: 27 (50%) patients were in LAO-cranial, 10 (18,5%) were in RAO- cranial, 9 (16,7%) were in LAO-caudal and 8 (14,8%) patients were in RAO-caudal angles.

Conclusion

Conclusion. According to our results it seems logical to start mitral position CF assessment by RAO-Cranial angles quadrant and for aortic position by LAO-Cranial angles quadrant to decrease time and lower radiation exposure.

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The authors declare that there are no conflicts of interest present.