ORIGINAL PAPER
Time-resolved magnetic resonance angiography as a follow-up method for visceral artery aneurysm treated with
coil-embolisation
More details
Hide details
Publication date: 2018-04-10
Pol J Radiol, 2018; 83: 137-142
KEYWORDS
ABSTRACT
Purpose:
The purpose of this study is to assess the feasibility and usefulness of time-resolved magnetic resonance angiography (TR-MRA) for follow-up of visceral artery aneurysms (VAAs) after embolotherapy.
Material and methods:
Twenty-one VAAs (11 splenic, six renal, three internal iliac, and one superior pancreaticoduodenal artery aneurysms) in 18 patients (median age, 64 years; range, 36-88 years) previously treated by embolisation with platinum coils, were evaluated. The mean size of the aneurysm was 10.5 cm3 (range, 0.3-132 cm3). Among them, 19 lesions were treated by aneurysmal packing with or without distal-to-proximal embolisation. For the remaining two lesions, distal-to-proximal embolization alone was performed. The mean observation period after embolotherapy was 35 weeks (range, 4-216). All patients underwent TR-MRA following an intravenous bolus injection of gadolinium chelate. Recanalisation was diagnosed when any portion of the aneurysmal sac was enhanced in the arterial phase.
Results:
On TR-MRA, two lesions were diagnosed as recanalised. They were confirmed by transcatheter arteriography and re-treated by embolotherapy. For the remaining 19 lesions, there were no findings of recanalisation on TR-MRA.
Conclusions:
TR-MRA appears to be a feasible method for follow-up examination of VAAs treated by embolotherapy.
REFERENCES (18)
1.
Huang Y-K, Hsieh H-C, Tsai F-C et al. Visceral artery aneurysm: risk factor analysis and therapeutic opinion. Eur J Vasc Endovasc Surg 2007; 33: 293-301.
2.
Shanley CJ, Shah NL, Messina LM. Common splanchnic artery aneurysms: splenic, hepatic, and celiac. Ann Vasc Surg 1996; 10: 315-322.
3.
Liu Q, Lu JP, Wang F, et al. Visceral artery aneurysms: evaluation using 3D contrast-enhanced MR angiography. AJR Am J Roentgenol 2008; 191: 826-833.
4.
Sessa C, Tinelli G, Porcu P, et al. Treatment of visceral artery aneurysms: description of a retrospective series of 42 aneurysms in 34 patients. Ann Vasc Surg 2004; 18: 695-703.
5.
Cochennec F, Riga CV, Allaire E, et al. Contemporary management of splanchnic and renal artery aneurysms: results of endovascular compared with open surgery from two European vascular centers. Eur J Vasc Endovasc Surg 2011; 42: 340-346.
6.
Yasumoto T, Osuga K, Yamamoto H, et al. Long-term outcomes of coil packing for visceral aneurysms: correlation between packing density and incidence of coil compaction or recanalization. J Vasc Interv Radiol 2013; 24: 1798-1807.
7.
Kurosaka K, Kawai T, Shimohira M, et al. Time-resolved Magnetic Resonance Angiography for assessment of recanalization after coil embolization of visceral artery aneurysms. Pol J Radiol 2013; 78: 64-68.
8.
Chadha M, Ahuja C. Visceral artery aneurysms: diagnosis and percutaneous management. Semin Intervent Radiol 2009; 26: 196-206.
9.
Choi JW, Roh HG, Moon WJ, et al. Time-resolved 3D contrast-enhanced MRA on 3.0T: a non-invasive follow-up technique after stent-assisted coil embolization of the intracranial aneurysm. Korean J Radiol 2011; 12: 662-670.
10.
Shimohira M, Kawai T, Hashizume T, et al. Reperfusion Rates of Pulmonary Arteriovenous Malformations after Coil Embolization: Evaluation with Time-Resolved MR Angiography or Pulmonary Angiography. J Vasc Interv Radiol 2015; 26: 856-864.
11.
Jaspers K, Nijenhuis RJ, Backes WH. Differentiation of spinal cord arteries and veins by time-resolved MR angiography. J Magn Reson Imaging 2007; 26: 31-40.
12.
Kawai T, Shimohira M, Kan H, et al. Feasibility of time-resolved MR angiography for detecting recanalization of pulmonary arteriovenous malformations treated with embolization with platinum coils. J Vasc Interv Radiol 2014; 25: 1339-1347.
13.
Kawai T, Shimohira M, Ohta K, et al. The Role of Time-Resolved MRA for Post-treatment Assessment of Pulmonary Arteriovenous Malformations: A Pictorial Essay. Cardiovasc Intervent Radiol 2016; 39: 965-972.
14.
White SL, Polkinghorne KR, Atkins RC, et al. Comparison of the prevalence and mortality risk of CKD in Australia using the CKD Epidemiology Collaboration (CKD-EPI) and Modification of Diet in Renal Disease (MDRD) Study GFR estimating equations: the AusDiab (Australian Diabetes, Obesity and Lifestyle) Study. Am J Kidney Dis 2010; 55: 660-670.
15.
Sadowski EA, Bennett LK, Chan MR, et al. Nephrogenic systemic fibrosis: risk factors and incidence estimation. Radiology 2007; 243: 148-157.
16.
Koganemaru M, Abe T, Nonoshita M, et al. Follow-up of true visceral artery aneurysm after coil embolization by three-dimensional contrast-enhanced MR angiography. Diagn Interv Radiol 2014; 20: 129-135.
17.
Martin AJ, Hetts SW, Dillon WP, et al. MR imaging of partially thrombosed cerebral aneurysms: characteristics and evolution. AJNR Am J Neuroradiol 2011; 32: 346-351.
18.
Tian B, Xu B, Lu J, et al. Four-dimensional computed tomography angiographic evaluation of cranial dural arteriovenous fistula before and after embolization. Eur J Radiol 2015; 84: 1144-1149.