TY - JOUR
T1 - Computed tomography virtual intravascular endoscopy in the evaluation of fenestrated stent graft repair of abdominal aortic aneurysms
AU - Sun, Z.
AU - Mwipatayi, Patrice
AU - Allen, Y.B.
AU - Hartley, D.E.
AU - Lawrence-Brown, M.M.
PY - 2009
Y1 - 2009
N2 - This study aimed to investigate the diagnostic value of computed tomography virtual intravascular endoscopy (VIE) in the follow-up of patients with abdominal aortic aneurysm (AAA) treated with fenestrated stent grafts.Methods: A total of 19 patients (17 males and 2 females; mean age: 75 years) with AAA undergoing fenestrated stent grafts were retrospectively studied. Pre- and post-fenestration computed tomography data were reconstructed for the generation of VIE images of aortic ostia and fenestrated stents and compared with two-dimensional axial and multiplanar reformation (MPR) images. Serum creatinine was measured pre and post fenestration to evaluate the renal function.Results: The mean intra-aortic length measured by VIE, two-dimensional axial and MPR were 4.7, 4.4 and 4.6 mm, respectively, for the right renal stent; 5.0, 4.9 and 5.0 mm, respectively, for the left renal stent; and 5.9, 6.0 and 6.0 mm, respectively, for the superior mesenteric artery stent. Comparisons of these measurements did not show significant difference (P > 0.05). The mean diameters of renal artery ostia measured on VIE visualization pre and post fenestration were 9.2 × 8.3 and 10 × 8.9 mm for the right renal ostium; 8.3 × 7.1 and 9.9 × 8.9 mm for the left renal ostium, with significant changes observed (P <0.01). No renal dysfunction was observed in this group.Conclusion: VIE is a valuable visualization tool in the follow-up of fenestrated stent graft repair of AAA by providing intraluminal appearance of fenestrated stents and measuring the length of stent protrusion.
AB - This study aimed to investigate the diagnostic value of computed tomography virtual intravascular endoscopy (VIE) in the follow-up of patients with abdominal aortic aneurysm (AAA) treated with fenestrated stent grafts.Methods: A total of 19 patients (17 males and 2 females; mean age: 75 years) with AAA undergoing fenestrated stent grafts were retrospectively studied. Pre- and post-fenestration computed tomography data were reconstructed for the generation of VIE images of aortic ostia and fenestrated stents and compared with two-dimensional axial and multiplanar reformation (MPR) images. Serum creatinine was measured pre and post fenestration to evaluate the renal function.Results: The mean intra-aortic length measured by VIE, two-dimensional axial and MPR were 4.7, 4.4 and 4.6 mm, respectively, for the right renal stent; 5.0, 4.9 and 5.0 mm, respectively, for the left renal stent; and 5.9, 6.0 and 6.0 mm, respectively, for the superior mesenteric artery stent. Comparisons of these measurements did not show significant difference (P > 0.05). The mean diameters of renal artery ostia measured on VIE visualization pre and post fenestration were 9.2 × 8.3 and 10 × 8.9 mm for the right renal ostium; 8.3 × 7.1 and 9.9 × 8.9 mm for the left renal ostium, with significant changes observed (P <0.01). No renal dysfunction was observed in this group.Conclusion: VIE is a valuable visualization tool in the follow-up of fenestrated stent graft repair of AAA by providing intraluminal appearance of fenestrated stents and measuring the length of stent protrusion.
U2 - 10.1111/j.1445-2197.2009.05112.x
DO - 10.1111/j.1445-2197.2009.05112.x
M3 - Article
C2 - 20078536
SN - 1445-1433
VL - 79
SP - 836
EP - 840
JO - ANZ Journal of Surgery
JF - ANZ Journal of Surgery
IS - 11
ER -