Stangenberg Lars, Shuja Fahad, van der Bom I Martijn J, van Alfen Martine H G, Hamdan Allen D, Wyers Mark C, Guzman Raul J, Schermerhorn Marc L
1 Division of Vascular and Endovascular Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
2 Division of Vascular and Endovascular Surgery, Department of Surgery, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA.
Vasc Endovascular Surg. 2018 Jan;52(1):52-58. doi: 10.1177/1538574417742211. Epub 2017 Nov 21.
High-definition fluoroscopic imaging is required to perform endovascular procedures safely and precisely, especially in complex cases, resulting in longer procedures and increased radiation exposure. This is of importance for training institutions as trainees, even with sound instruction in as low as reasonably achievable (ALARA) principles, tend to have high radiation exposures. Recently, there was an upgrade in the imaging system allowing for comparison of radiation exposure to patients and providers. We performed an analysis of consecutive endovascular aneurysm repair (EVAR) and superficial femoral artery (SFA) interventions in the years 2013 to 2014. We recorded body mass index (BMI) and fluoroscopy time (FT) and subsequently matched 1:1 based on BMI, FT, or both. We determined radiation dose using air kerma (AK) and also recorded individual surgeons' badge readings. Allura Xper FD20 was upgraded to AlluraClarity with ClarityIQ. We identified a total of 77 EVARs (52 pre and 25 post) and 134 SFA interventions (99 pre and 35 post). Unmatched results for EVAR were BMI pre 26.2 versus post 25.8 (kg/m, P = .325), FT 28.1 versus 21.2 (minutes, P = .051), and AK 1178.5 versus 581 (mGy, P < .001), respectively. After matching, there was a 53.2% reduction in AK (846.1 vs 395.9 mGy; P = .004) for EVAR. Unmatched results for SFA interventions were BMI pre 28.1 versus post 26.6 ( P = .327), FT 18.7 versus 16.2 ( P = .282), and AK 285.6 versus 106.0 ( P < .001), respectively. After matching, there was a 57.0% reduction in AK (305.0 vs 131.3, P < .001). The total deep dose equivalent from surgeons' badge readings decreased from 39.5 to 17 mrem ( P = .029). Aortic and peripheral endovascular interventions can be performed with reduced radiation exposure to patients and providers, employing modern fixed imaging systems with advanced dose reduction technology. This is of particular importance in the light of the increasing volume and complexity of endovascular and hybrid procedures as well as the prospect of decades of radiation exposure during training and practice.
要安全、精确地进行血管内手术,尤其是在复杂病例中,需要高清晰度的荧光透视成像,这会导致手术时间延长和辐射暴露增加。这对培训机构很重要,因为即使实习生接受了尽可能低合理可及(ALARA)原则的良好指导,他们的辐射暴露往往也很高。最近,成像系统进行了升级,能够比较患者和医护人员的辐射暴露情况。我们对2013年至2014年连续进行的血管内动脉瘤修复(EVAR)和股浅动脉(SFA)介入手术进行了分析。我们记录了体重指数(BMI)和透视时间(FT),随后根据BMI、FT或两者进行1:1匹配。我们使用空气比释动能(AK)确定辐射剂量,并记录每位外科医生的个人剂量计读数。Allura Xper FD20升级为带有ClarityIQ的AlluraClarity。我们共识别出77例EVAR(52例术前和25例术后)和134例SFA介入手术(99例术前和35例术后)。EVAR未匹配的结果分别为:术前BMI 26.2与术后25.8(kg/m²,P = 0.325),FT 28.1与21.2(分钟,P = 0.051),以及AK 1178.5与581(mGy,P < 0.001)。匹配后,EVAR的AK降低了53.2%(846.1对395.9 mGy;P = 0.004)。SFA介入手术未匹配的结果分别为:术前BMI 28.1与术后26.6(P = 0.327),FT 18.7与16.2(P = 0.282),以及AK 285.6与106.0(P < 0.001)。匹配后,AK降低了57.0%(305.0对131.3,P < 0.001)。外科医生个人剂量计读数的总深部剂量当量从39.5降至17 mrem(P = 0.029)。采用具有先进剂量降低技术的现代固定成像系统,可以在减少患者和医护人员辐射暴露的情况下进行主动脉和外周血管内介入手术。鉴于血管内和杂交手术的数量不断增加且复杂性不断提高,以及在培训和实践中数十年辐射暴露的可能性,这一点尤为重要。