Archive for Июль 31st, 2011

The radiation burden from increasingly complex endovascular aortic aneurysm repair

Дата: Июль 31st, 2011 Автор:
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  • Тип контента: Научная статья
  • Номер документа: 4071
  • Название документа: The radiation burden from increasingly complex endovascular aortic aneurysm repair
  • Номер (DOI, IBSN, Патент): 10.1007/s13244-011-0120-5
  • Изобретатель/автор: Michael E. Gaunt, Mathew Mercuri, Claire Cousins, Avnesh S. Thakor, Andrew Winterbottom
  • Правопреемник/учебное заведение: Dept. of Radiology, Addenbrookes Hospital, Univ. of Cambridge, Cambridge, UK
  • Дата публикации документа: 2011-07-31
  • Страна опубликовавшая документ: Великобритания
  • Язык документа: Английский
  • Наименование изделия: Не заполнено
  • Источник: http://www.springerlink.com/content/h0747573177x61x5/
  • Вложения: Нет
  • Аналитик: Helix

Objectives

With increasing experience, endovascular aortic aneurysm repair (EVAR) has been extended to patients with less suitable aorto-iliac anatomy in an attempt to reduce peri-operative mortality. However, more complex EVAR procedures may take longer and can result in higher rates of complications, additional interventional procedures and more frequent radiological imaging, which may offset some of the benefit. This study determined the radiation burden for standard EVAR, as determined by the EVAR-1 trial criteria, and more complex EVAR.

Methods

A total of 123 elective patients aged >60, with aneurysms >5.5 cm who received a bifurcated stent-graft were allocated into a group based on whether or not they fulfilled strict EVAR-1 trial criteria. The mean radiation dose was calculated for each group, together with the additional radiation burden from routine pre- and post-EVAR CT examinations and pre-EVAR iliac artery embolisation.

Results

Patients not meeting the EVAR-1 trial criteria had significantly longer fluoroscopic screening times and higher radiation doses. The radiation burden in all patients was higher following exposure from routine CT examinations and following pre-EVAR iliac artery embolisation.

Conclusion

Whilst the radiation from standard EVAR is acceptable, more complicated and challenging EVARs, accompanied with additional radiological investigations and procedures, can significantly increase the radiation burden.

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