Three-dimensional fusion computed tomography decreases radiation exposure, procedure time, and contrast use during fenestrated endovascular aortic repair.
J Vasc Surg
; 61(2): 309-16, 2015 Feb.
Article
in En
| MEDLINE
| ID: mdl-25175634
ABSTRACT
OBJECTIVE:
Endovascular surgery has revolutionized the treatment of aortic aneurysms; however, these improvements have come at the cost of increased radiation and contrast exposure, particularly for more complex procedures. Three-dimensional (3D) fusion computed tomography (CT) imaging is a new technology that may facilitate these repairs. The purpose of this analysis was to determine the effect of using intraoperative 3D fusion CT on the performance of fenestrated endovascular aortic repair (FEVAR).METHODS:
Our institutional database was reviewed to identify patients undergoing branched or FEVAR. Patients treated using 3D fusion CT were compared with patients treated in the immediate 12-month period before implementation of this technology when procedures were performed in a standard hybrid operating room without CT fusion capabilities. Primary end points included patient radiation exposure (cumulated air kerma mGy), fluoroscopy time (minutes), contrast usage (mL), and procedure time (minutes). Patients were grouped by the number of aortic graft fenestrations revascularized with a stent graft, and operative outcomes were compared.RESULTS:
A total of 72 patients (41 before vs 31 after 3D fusion CT implementation) underwent FEVAR from September 2012 through March 2014. For two-vessel fenestrated endografts, there was a significant decrease in radiation exposure (3400 ± 1900 vs 1380 ± 520 mGy; P = .001), fluoroscopy time (63 ± 29 vs 41 ± 11 minutes; P = .02), and contrast usage (69 ± 16 vs 26 ± 8 mL; P = .0002) with intraoperative 3D fusion CT. Similarly, for combined three-vessel and four-vessel FEVAR, significantly decreased radiation exposure (5400 ± 2225 vs 2700 ± 1400 mGy; P < .0001), fluoroscopy time (89 ± 36 vs 64 ± 21 minutes; P = .02), contrast usage (90 ± 25 vs 39 ± 17 mL; P < .0001), and procedure time (330 ± 100 vs 230 ± 50 minutes; P = .002) was noted. Estimated blood loss was significantly less (P < .0001), and length of stay had a trend (P = .07) toward being lower for all patients in the 3D fusion CT group.CONCLUSIONS:
These results demonstrate that use of intraoperative 3D fusion CT imaging during FEVAR can significantly decrease radiation exposure, procedure time, and contrast usage, which may also decrease the overall physiologic impact of the repair.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Aortic Aneurysm
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Radiation Dosage
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Aortography
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Radiographic Image Interpretation, Computer-Assisted
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Tomography, X-Ray Computed
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Radiography, Interventional
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Contrast Media
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Blood Vessel Prosthesis Implantation
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Imaging, Three-Dimensional
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Surgery, Computer-Assisted
Type of study:
Evaluation_studies
/
Prognostic_studies
Limits:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
J Vasc Surg
Journal subject:
ANGIOLOGIA
Year:
2015
Document type:
Article