Imaging of aortic stent-grafts and endoleaks
Although the technical success of stent-graft implantation is established and relatively safe, data on the long-term safety and efficacy of endovascular repair are just emerging. Because several late complications of aortic stent-graft placement have been observed, life-long follow-up remains essential. Imaging methods form an integral part of every stage of endovascular aortic aneurysm repair. The current imaging strategy should include initial plain films, CT angiography, and color-coded Duplex sonography. Plain films are an excellent means to detect migration, angulation, kinking, and structural changes of the stent mesh, including material fatigue, at follow-up. Helical CT angiography is considered a potentially revolutionary method for the noninvasive complete postprocedural assessment of aortic sten-grafting. Current data justify the use of biphasic C angiography as the postprocedural imaging technique of choice in most patients . Ultrasound offers the advantages of low cost and lack of radiation exposure. High-quality ultrasound reliably excludes endoleaks in patients after stent-grafting of AAAs. There is a substantial variability, however, in measuring the diameter of aneurysm sacs; thus, confirmation using an alt...Continue Reading
MR imaging artifacts, ferromagnetism, and magnetic torque of intravascular filters, stents, and coils
Needle localization in MR-guided biopsy and aspiration: effects of field strength, sequence design, and magnetic field orientation
Changing aneurysmal morphology after endovascular grafting: relation to leakage or persistent perfusion
Endoleak as a complication of endoluminal grafting of abdominal aortic aneurysms: classification, incidence, diagnosis, and management
Treatment of abdominal aortic aneurysms with transfemoral placement of stent-grafts: complications and secondary radiologic intervention
Perigraft inflammation due to Dacron-covered stent-grafts in sheep iliac arteries: correlation of MR imaging and histopathologic findings
The efficacy of transfemoral endovascular aneurysm management: a study on size changes of the abdominal aorta during mid-term follow-up
Evaluation of abdominal aortic aneurysm for stent-graft placement: comparison of gadolinium-enhanced MR angiography versus helical CT angiography and digital subtraction angiography
Endoleaks after endovascular graft treatment of aortic aneurysms: classification, risk factors, and outcome
Spiral CT during selective accessory renal artery angiography: assessment of vascular territory before aortic stent-grafting
Comparison of computed tomography and duplex imaging in assessing aortic morphology following endovascular aneurysm repair
Clinical consequences of periprosthetic leak after endovascular repair of abdominal aortic aneurysm. Endovascular Technologies Investigators
Endoleakage after stent-graft treatment of abdominal aneurysm: implications on pressure and imaging--an in vitro study
Persistent collateral perfusion of abdominal aortic aneurysm after endovascular repair does not lead to progressive change in aneurysm diameter
Endoleak after aortic stent graft repair: diagnosis by color duplex ultrasound scan versus computed tomography scan
Type III and type IV endoleak: toward a complete definition of blood flow in the sac after endoluminal AAA repair
Depiction of an endoleak after abdominal aortic stent-grafting with contrast-enhanced three-dimensional MR angiography
Time-related alterations in shape, position, and structure of self-expanding, modular aortic stent-grafts: a 4-year single-center follow-up
Plain and covered stent-grafts: in vitro evaluation of characteristics at three-dimensional MR angiography
Iliofemoral arterial occlusive disease: contrast-enhanced MR angiography for preinterventional evaluation and follow-up after stent placement
Magnetic resonance angiography of nonferromagnetic iliac artery stents and stent-grafts: A comparative study in sheep
Leakages after endovascular repair of aortic aneurysms: classification based on findings at CT, angiography, and radiography
The incidence, natural history, and outcome of secondary intervention for persistent collateral flow in the excluded abdominal aortic aneurysm
Three-dimensional MR angiography of a nitinol-based abdominal aortic stent graft: assessment of heating and imaging characteristics
Early complications and endoleaks after endovascular abdominal aortic aneurysm repair: report of a multicenter study
[Imaging of endoleaks after endovascular aneurysm repair (EVAR) with contrast-enhanced ultrasound (CEUS)].
Endoleak detection and classification after endovascular treatment of abdominal aortic aneurysm: value of CEUS over CTA
Endovascular repair of abdominal aortic aneurysms: analysis of aneurysm volumetric changes at mid-term follow-up
Comparison of contrast-enhanced ultrasound and computed tomography in classifying endoleaks after endovascular treatment of abdominal aorta aneurysms: preliminary experience
Contrast-enhanced ultrasound in detection and follow-up of an infrarenal abdominal aortic aneurysm with aorto-caval fistula and endovascular treatment
Aneurysm Sac pressure measurement with minimally invasive implantable pressure sensors: an alternative to current surveillance regimes after EVAR?
MR imaging for the detection of endoleaks in recipients of abdominal aortic stent-grafts with low magnetic susceptibility
Durability and validity of a remote, miniaturized pressure sensor in an animal model of abdominal aortic aneurysm
Recurrent endoleak detection and measurement of aneurysm size with CTA after coil embolization of endoleaks
Correlation between the measurement of transverse diameter in the proximal neck on computed tomography and on aortography before endovascular treatment of infrarenal aortic aneurysm
Prospective comparative analysis of colour-Doppler ultrasound, contrast-enhanced ultrasound, computed tomography and magnetic resonance in detecting endoleak after endovascular abdominal aortic aneurysm repair
Use of N-acetylcholine and sodium bicarbonate to protect renal transplant function during endovascular renal artery aneurysm exclusion
Follow-up of endovascular aortic aneurysm repair: Preliminary validation of digital tomosynthesis and contrast enhanced ultrasound in detection of medium- to long-term complications
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